Spindle Units. Internal grinding External grinding Face grinding Thread grinding Tooth flank grinding Fine Boring Special machining

Transcription

1 Spindle Units Internal grinding External grinding Face grinding Thread grinding Tooth flank grinding Fine Boring Special machining Edition 1/23 SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

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3 Spindle Units Internal grinding External grinding Face grinding Thread grinding Tooth flank grinding Fine boring Special machining Edition 1/23 Spindel- und Lagerungstechnik Fraureuth GmbH Fabrikgelände 5 D - 42 Fraureuth/ Sachsen Telefon +4 / 3 1 / 1- Telefax +4 / 3 1 / / 3 1 / 1 DIN EN ISO 1 Zertifikat: 1 3 Internet slf@slf-fraureuth.de SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

4 Table of contents Preface 3 Page General information Ordering 4 Design of the grinding spindles 5 Technical data Acceptance tolerances Calculation of the cutting force and the motor output Production prograe belt-driven spindles, fitted with bearings series B... SFIL SFIV Accessories for SFIL / SFIV 1 SFAL 1 SFAV 2 Accessories for SFAL / SFAV SFAA Accessories for SFAA 2 Grinding wheel carriers for spindle with male taper 2 belt-driven spindles, fitted with bearings series B 2... SSV 2 SSI / SSB 3 SSA O-SSA 34 SPV 3 SPA 3 Tooth-flank grinding spindles SPAZ 3 Face grinding spindles IAO / SSST 4 Grinding spindles SSAA 41 Motor grinding spindles MNFA 42 Accessories for MNFA 44 Belt pulleys for grinding spindles 45 Abutment dimensions SSI 4 SPV, SSV, SSB 4 SSA, O-SSA, SPV, SPA 4 All series 4 Safety requirements 5 Stiffness 51 Weight table of grinding spindles 52 Circumferential speeds 53 Notices 54 Production prograe and position 5 2/3 Spindle Units

5 Preface T he company Spindel- und Lagerungstechnik Fraureuth GmbH is a new company, since 13 supplying high grade products to longstanding as well as to fresh clients in the fields of spindle units and bearing engineering incl. spindle bearings (high-precision bearings). In the field of spindle units we can look back on more than 4 years of experience in designing and production. Special design categories are: belt-driven grinding spindles motor grinding spindles with integrated motor motor grinding spindles with flanged-on motor spindles for multiple spindle heads with a variety of clamping systems for external cylindrical grinding, internal grinding and face grinding, for milling, drilling and turning as well as for specific ranges of application, e.g. wood and glass machining (sheet glass grinding, decoration glass grinding). All spindles correspond to highest quality standards. They excel by their extremely smooth and quiet running, long service life and easy maintenance and servicing. They allow extremely good cutting capacities and surface finishes of the workpieces. Everyday our grinding spindles are proved in our own bearing production. Exactly in this field they have to meet the highest requirements. Our service also covers repair of grinding spindles at a short notice. The repaired spindles are tested on test stands and are submitted to final inspection with regard to vibration, radial runout, temperature and if necessary stiffness (with certificate) by analogy with fresh produced spindles. DIN EN ISO 1 Zertifikat: 1 3 SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

6 Ordering T he grinding spindle production prograe covers a carefully assorted variety of designs. This enables us always to offer you the grinding spindle best suitable for small-scale production and series production. For special machining jobs we can offer you either a modified standard grinding spindle or a special grinding spindle, e.g.: belt-driven precision grinding spindles for high speeds motor grinding spindles tool spindles, tooth-flank grinding spindles and special spindles accessories: oil mist lubricators belt pulleys, flanges screw-in mandrels When ordering a normal standard spindle please indicate precise and complete type designation sense of rotation please order accessories, e.g. screw-in mandrels, flanges and belt pulleys, separately Ordering a standard spindle for specific applications If you order a standard spindle for specific applications, we need the following additional information: purpose, type of work, required quality, workpiece dimensions (maybe enclose drawing) mounting position: horizontal or vertical speed are individual or several units needed (small-scale production or series production), operating times rating of the drive motor radial and axial loads acting on the spindle shaft For further information see section Technical service. Definition of the sense of rotation Direction of view Ordering spare parts Please indicate the type designation and serial number of the spindle. Before ordering spare parts for older spindles, please inquire whether the parts are still available. Clockwise rotation Direction of view Order example for a standard spindle Type SSA, Housing outside dia 1, 5 long for clockwise rotation, with 2 dia belt pulley, flange for grinding wheel ø x 5 wide and bore diameter. Counterclockwise rotation Complete order data Grinding spindle SSA 1 x 5/3 R Belt pulley R -2 x 1 Flange SA - x 4/5 Spindle Units General information

7 Design of the grinding spindles Belt-driven grinding spindle units Standard grinding spindles fitted with bearings series B... SFIL SFIL For light grinding operations. For small and mean bore diameters: Series of SFIL with inner cylinder for screw-in mandrels. SFIV For heavy grinding operations: Series of SFIV in reinforced execution with inner cylinder for screwin mandrels. SFAL For light grinding operations. For internal grinding: Series of SFAL with male taper for grinding wheel flanges. SFIV SFAL SFAV For heavy grinding operations: Series SFAV in reinforced execution with male taper for grinding wheel flanges. SFAV SFAV SFAV For internal grinding, external grinding, face grinding: Series of SFAV in reinforced execution with male taper for grinding wheel flanges from 1 of housing outside diameter. SFAA SFAA For internal grinding particularly deep holes: Series of SFAA with stepped housing and male taper for grinding wheel flanges. SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

8 Design of the grinding spindles Belt-driven grinding spindle units Standard grinding spindles The standard grinding spindles of types SSV, SSI, SSB, SSA and SSAA are designed for bore grinding. Special Belleville springs are installed at the pulley end to ensure that the bearing arrangement always has zero clearance. For-life lubricated spindles require practically no maintenance. Highly efficient seals prevent grinding fluids and other contaminants from penetrating into the spindles. SSI, SSA with housing outside diameters of up to 5 The O-SSA standard spindles are suitable for external grinding, grinding of large bores and particularly for face grinding. Precision ball bearings with a steeper contact angle are used to accoodate the high axial loads. Precision grinding spindles The grinding spindles of series SPV and SPA provide a higher precision than standard grinding spindles. Ball bearings of quality class P2S (ABEC ) are used. SSI, SSB, SSA, SSV with housing outside diameters from on O-SSA any housing outside diameters These spindles are used especially where a large number of different bores have to be ground with high precision, particularly when it is still uneconomic to buy an assortment of electric grinding spindles. They should be driven by a highfrequency motor. SPV, SPA / Spindle Units General information

9 Motor grinding spindle units MNFA For all grinding operations: Series of MNFA with flanged-on motor and male taper. MF, MFL For grinding the interior circularly: Bearing arranged grinding spindle units with integrated motor. Gladly we place special documents at disposal on request. SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

10 Technical data Order numbers The type designation code is engraved on the belt-driven grinding spindles. The complete order numbers are listed in the tables. Additional numbers are used for special designs. The meaning of the codes is illustrated in the figure on the right. Spindle holders The grinding spindle has to be chucked on a length which is at least twice the spindle diameter. If possible, split spindle holders should be used, provided with a spreading screw to facilitate mounting of the spindle. Avoid blows to the spindle. The spindle should also not be clamped in the spindle holder by means of thrust bolts which act directly on the spindle housing. When chucking the spindle housing in the holder take care not to ovally deform it. Sufficiently precise spacer sleeves can be used for grinding spindle housings whose outside diameter is smaller than the bore of the spindle holder. Please observe the operating instructions. Spindle bearings Precision grinding spindles are exclusively fitted with precision bearings of tolerance class P2S (ABEC ). The belt-driven standard grinding spindles are fitted with bearings of tolerance class P4, DIN 2, ISO (ABEC ). Special bearings for special applications can be designed after consulting our technical department. Speed The maximum speed for every spindle type indicated in the catalogue and Standard design, grease-lubricated; no digit Oil mist lubrication Rigid bearing arrangement (without springs for zero clearance) Clockwise and counterclockwise rotation Special spindle design - Example Spindle no. acc. to drawing Design stage SSA x 4/R on the grinding spindle must not be exceeded. Never the maximum circumferential speed for the grinding wheels indicated by the grinding wheel manufacturer must be exceeded. Sense of rotation To allow smooth handling of orders, please indicate the desired sense of rotation (R or L; spindles suitable for both clockwise rotation and counter-clockwise rotation are designated RL). Lubrication All belt-driven grinding spindles are lubricated for life. In some cases, oil mist lubrication can be used to enable higher spindle speeds. With this lubricating system the oil is atomized and carried through 1 2 SSA x 4 - / R L RL Clockwise rotation Counter-clockwise rotation Clockwise and counter-clockwise rotation Design stage the bearings by a constant air current. This lubrication method offers the advantage that a perfect lubricating film is generated. Additionally the bearings are cooled by the air current. And, most important of all, the overpressure within the spindle prevents foreign matter from penetrating into the spindle system. / Spindle Units General information

11 Acceptance tolerances Belt pulleys The belt pulleys are dynamically balanced. The size suitable for each application is recoended in the tables. The complete assortment with order numbers can be found on page 45. For a low-vibration drive we recoend to use endless textile drive belts. Repair and bearing replacement Technical knowledge is a must when repairing spindles. If experts with such technical knowledge are not available, spindles should be repaired by the manufacturer. The bearing replacement requires particularly good knowledge of how to handle these high-precision bearings. We urgently recoend having this work done by our experts. Our repair service department guarantees that it will be done quickly. The repaired spindles are as good as new. You can also order replacement spindles. We can supply you at any time with replacement bearings so that you can repair the spindles yourself. Acceptance tolerances All grinding spindles are tested in a test run of several hours. In the final inspection especially the dimensional deviation and the position deviations of the shaft are checked. The following excerpt from our plant acceptance specification indicates the maximum admissible dimensional and position deviations of the shaft ends after mounting. Max. admissible values (Werkstandard und DIN 3) Radial runout of the spindle shaft (in µm) Set-up of measuring instruments Spindle type Measuring point A B A B A Spindle housing outside diameter d d Standard SSV 5 5 l 5 l > 5 Standard SSA O-SSA SSAA 5 5 l 5 A 1 2 _ d B A 5 5 l > 5 d Precision SPA MNFA SFAL SFAV SFAA A A Standard SSV SSI SSB 5 3 d 3 d Precision SPV MF MFL SFIL SFIV 2 2 SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

12 Acceptance tolerances Max. admissible values (Werkstandard and DIN 3) Axial runout of the spindle shaft (in µm) Set-up of measuring instruments Spindle type Measuring point F F d all types 1 Max. admissible values (Werkstandard and DIN 3) Radial runout of the screw-in mandrel (in µm) Set-up of measuring instruments Spindle type Measuring point C ø d D l E D C E Standard SSV 3 d d Standard SSI SSB l SSI, SSB, SPV, MF, MFL, SFIL, SFIV l SSV Precision SPV MF MFL SFIL SFIV 1 Max. admissible values (Werkstandard and DIN 3) Radial runout of the chuck (in µm) Set-up of measuring instruments Spindle type Measuring point A A 5 d SSI 5 1/ Spindle Units General information

13 Calculation of the cutting force and the motor output G rinding is a machining process which uses a number of geometrically undetermined cutting edges. The grinding process is influenced by a variety of factors, e.g. bond, grade, grain size and porosity of the grinding wheels, cooling, grinding wheel speed and workpiece speed, feed and strength of the workpiece. The cutting force F s can be calculated generally by means of the following formula: a s u W F S = τ (N) v S where τ = shear strength in N/ 2 ; for a first approximation, δ B can be used a = feed (depth of cut) in s = longitudinal feed in /rotation u W = circumferential speed of the workpiece in m/min v s = circumferential speed of the grinding wheel in m/s This formula applies both to internal and external grinding. It also applies to external plunge-cut grinding if the cutting width is taken instead of the feed a, and if the table traverse rate is taken instead of the circumferential speed of the workpiece u W. For the calculation of the motor power P A : P A = F S v S η (W) where η = efficiency of the grinding spindle including the belt drive. The standard value η,. For special requirements (e.g. for special machines) tests have to be carried out where cutting force, moment or power are accurately measured under identical cutting conditions. Standard values for grinding (Excerpt from Spanende Formung, published by Verlag Technik, Berlin) grain size, grade and speed of the grinding wheels during grinding - Table 1 Grinding of with Steel, soft Corundum Steel, hard Corundum Cast iron Silicon carbide Light metal Silicon carbide I II III IV I II III IV I II III IV I II III IV Grain size Grade M L L K K I K I L K L I I H I H v s (m/s) q = v s u W Remark: Grain size in accordance with DIN : H... coarse H 3... medium H... 1 fine H... very fine I Circular grinding, external II Circular grinding, internal III Surface grinding with the grinding wheel circumference IV Surface grinding with the grinding wheel face v s u w Grinding wheel speed in m/s Workpiece = speed in m/min Depth of cut (µm) Longitudinal feed s (/U) Depths of cut and feeds in grinding - Table 2 Rough-grinding Finish-grinding Plunge-cut grinding Rough-grinding Finish-grinding 2, , ,... (2/3... 4/5) B 1 (1/4... 1/2) B 1 B 1 Grinding wheel width in The standard values apply well to all grinding methods. Sparking out without feed improves the accuracy and surface finish. Standard values for circular feed by means of table 1. SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

14 Series SFIL Belt-driven grinding spindle units T his universal spindle type can be used for all kinds of bore grinding tasks. The large number of screwin mandrels allows an optimum adaption to every grinding task. The order includes Tool for mounting the spindle One hexagon socket nut for fastening the belt pulley A threaded pin for fastening the screw-in mandrel from housing diameter Operating instructions Please order accessories separately Screw-in mandrel (see also page 1 and Belt pulley (see also page 1, 1 and 45) Lubrication For-life grease lubrication Sense of rotation Please always indicate the sense of rotation when placing an order / Spindle Units Production prograe

15 t SW l 1 taper 1: K 1 d M 1 A h5 K M L SW S S b e 2 L 1 B L l d M 1 from housing diameter A = l 1 t Grinding spindle A x B K L K 1 L 1 e 2 b Dimensions in M l d l 1 M 1 t SW S Speed max. min -1 SFIL 4x1 SFIL 4x2 SFIL 4x 2 2 2,5,5,5 M x1 M x1 M x1,2 +,4,2 +,4,2 +,4 1,5 1,5 1,5 M M M SFIL 5x1 SFIL 5x2 SFIL 5x 15,5 15,5 15,5 15,5 15,5 15,5 M 1x1 M 1x1 M 1x1,2 +,4,2 +,4,2 +,4 M M M SFIL x2 SFIL x SFIL x M x1 M x1 M x ,2 +,4,2 +,4,2 +,4 M M M SFIL x2 SFIL x SFIL x M 15x1 M 15x1 M 15x1 1,2 +, 1,2 +, 1,2 +, M M M SFIL x2 SFIL x SFIL x M 2x1 M 2x1 M 2x1 1,2 +, 1,2 +, 1,2 +, M 1 M 1 M SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

16 Series SFIV Belt-driven grinding spindle units T his spindle unit has the same dimensions as series SFIL. However, for reason of reinforced execution it is suitable for major loads. The order includes Tool for mounting the spindle One hexagon socket nut each for fastening the belt pulley A threaded pin for fastening the screw-in mandrel from housing diameter Operating instructions Please order accessories separately Screw-in mandrel (see also page 1 and Belt pulley (see also page 1, 1 and 45) Lubrication For-life grease lubrication Sense of rotation Please indicate the sense of rotation always when placing an order /15 Spindle Units Production prograe

17 t SW l 1 taper 1: K 1 d M 1 A h5 K M L SW S S b e 2 L 1 B L l d M 1 from housing diameter A = l 1 t Grinding spindle A x B K L K 1 L 1 e 2 b Dimensions in M l d l 1 M 1 t SW S Speed max. min -1 SFIV x2 SFIV x SFIV x315 SFIV x M x1 M x1 M x1 M x ,2 +,4,2 +,4,2 +,4,2 +,4 M M M M SFIV x SFIV x M 15x1 M 15x1 1,2 +, 1,2 +, 1 1 M M SFIV x SFIV x315 SFIV x M 2x1 M 2x1 M 2x1 1,2 +, 1,2 +, 1,2 +, M 1 M 1 M SFIV 1x315 SFIV 1x4 SFIV 1x M x1 M x1 M x1 +, +, +, M M M SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

18 Accessories for Series SFIL / SFIV T o be able to fully utilize this precision in the grinding process, screwin mandrels are fastened by means of a threaded pin from housing outside diameter. This fastening system guarantees utmost radial runout of the screwed-in mandrel. up to housing outside diameter (SZ) E G d 4 D F l 3 l 4 T C from to housing outside diameter (SZV) E G d 4 F l 3 l 4 1/1 Spindle Units Production prograe

19 Spindle unit Screw-in mandrel Designation d 4 Grinding wheel l 4 l 3 E F G Range of applic. Bore Depth Designation Belt pulley D C T Speed min -1 SFIL 4 SZK 2-x1 SZ 2-x1 SZ 2-x SZ 2-x1 SZ 2-x R 2-2x SFIL 5 SZ 3-x1 SZ 3-x2 SZ 3-x1 SZ 3-x SZ 3-15x2 SZ 3-15x R 3-2x SFIL SFIV SZV 5-x1 SZV 5-x SZV 5-1x2 SZV 5-1x4 SZV 5-23x SZV 5-23x R 5-4x SFIL SFIV SZV -1x2 SZV -1x4 SZV -x SZV -x5 SZV -2x4 SZV -2x R -45x SFIL SFIV SZV -x SZV -x5 SZV -2x4 SZV -2x3 SZV -33x5 SZV -33x R -5x SFIV 1 SZV -2x4 SZV -2x3 SZV -33x5 SZV -33x SZV -43x3 SZV -43x R -x These screw-in mandrels are not stepped. Drive: Motor speed 2 min -1, motor belt pulley ø SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

20 Series SFAL Belt-driven grinding spindle units G rinding spindle for external grinding and for deep holes where diameters are wider than that of the spindle. The order includes Tool for mounting the spindle One hexagon socket nut each for fastening the belt pulley and the flange Operating instructions Lubrication For-life grease lubrication Sense of rotation Please indicate the sense of rotation always when placing an order Please order accessories separately Flange (see also page and 23) Belt pulley (see also page, 23 and 45) Balancing arbour for flange 1/1 Spindle Units Production prograe

21 SW taper 1: taper 1: K M A h5 K M l L S l e 1 b e 2 L B Grinding spindle A x B K L e 1 e 2 Dimensions in b M l SW S Speed max. min -1 SFAL x5 SFAL x1 SFAL x2 1, M 4 3 SFAL 4x1 SFAL 4x2 SFAL 4x 2 2 M x1 35 SFAL 5x1 SFAL 5x2 SFAL 5x 15,5 2 M 1x1 2 SFAL x2 SFAL x SFAL x ,5 1 M x1 1 1 SFAL x2 SFAL x SFAL x ,5 M 15x1 1 1 SFAL x2 SFAL x SFAL x ,2 1 1 M 2x1 2 1 SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

22 Series SFAV Belt-driven grinding spindle units T he dimensions of this design of grinding spindle are identical with those of the spindles of light series SFAL up to housing diameter. However for reasons of reinforced execution it is suitable for major loads. The order includes Tool for mounting the spindle One hexagon socket nut each for fastening the belt pulley and the flange Operating instructions Please order accessories separately Flange (see also page and 23) Belt pulley (see also page, 23 and 45) Balancing arbour for flange Lubrication For-life grease lubrication Sense of rotation Please indicate the sense of rotation always when placing an order up to housing diameter from housing diameter 1 SW taper 1: taper 1: K M A h5 K M l L S l e 1 b e 2 L B 2/21 Spindle Units Production prograe

23 Grinding spindle A x B K L e 1 e 2 Dimensions in b M l SW S Speed max. min -1 SFAV 4x1 SFAV 4x2 SFAV 4x SFAV 4x M x SFAV 5x1 SFAV 5x2 SFAV 5x SFAV 5x315 15,5 2 M 1x1 5 SFAV x SFAV x2 SFAV x SFAV x315 SFAV x4 SFAV x5 34 2,5 1 M x SFAV x2 SFAV x SFAV x315 SFAV x4 SFAV x ,5 M 15x SFAV x SFAV x315 SFAV x4 SFAV x5 SFAV x ,2 1 1 M 2x SFAV 1x315 SFAV 1x4 SFAV 1x5 SFAV 1x3 SFAV 1x ,2 1 1 M x SFAV x4 SFAV x5 SFAV x3 SFAV x M 3x1, SFAV x4 SFAV x5 SFAV x M 3x1, SFAV 1x4 SFAV 1x5 SFAV 1x M 4x1,5 2 2 SFAV 2x5 SFAV 2x3 1 M 55x1, SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

24 Accessories for Series SFAL / SFAV T he grinding wheel flanges are supplied with shims which also allow narrower grinding wheels to be chucked. Further diameters of belt pulleys see page 45. up to housing diameter from housing diameter E P G F E P G L H D F H L T C /23 Spindle Units Production prograe

25 Spindle Flange Grinding wheel Range of applic. unit Designation P H L E F G Bore Depth Designation Belt pulley D C T Speed min -1 SFAL SA -2x R -5x 5 5 SFAL 4 SFAV 4 SA 2-2x4 SA 2-x R 2-x4 4 SFAL 5 SFAV 5 SA 3-x R 3-1x SFAL SFAV SA 5-x SA 5-51x R 5-1x SFAL SA -51x R -5x SFAV SA -51x R -2x SFAL SA -51x R -5x 5 5 SFAV SA -51x R -2x SFAV 1 SA -x R -1x SFAV 1 SA -x R -5x ) SFAV SA -x R -2x SFAV SA -x R -1x ) SFAV SA -x R -21x SFAV SA -x R -x SFAV 1 SA -23x R -23x SFAV 2 SA 2-23x R 2-2x Depth of grinding: B + L + el + 2/3 F - chucking length Drive: Motor speed 2 min -1 Motor belt pulley ø 2) Motor belt pulley ø SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

26 Series SFAA Belt-driven grinding spindle units T hese spindles are suitable for grinding particularly deep holes which cannot be ground with any other spindle type. The order includes Tool for mounting the spindle One hexagon socket nut each for fastening the belt pulley and the flange Operating instructions Please order accessories separately Flange (see also page 2) Belt pulley (see also page 2 and 45) Balancing arbour for flange Lubrication For-life grease lubrication Sense of rotation Please indicate the sense of rotation always when placing an order / Spindle Units Production prograe

27 SW taper 1: taper 1: K 1 M 1 A 1 A h5 M K l 1 e 1 L 1 S l b L e 2 B 1 B Grinding spindle type A x B - A 1 x B 1 K L K 1 L 1 Dimensions in e 1 e 2 b M l M 1 l 1 SW S Speed max. min -1 SFAA x-5x1 SFAA x-5x2 SFAA x-5x SFAA x-5x ,5 2 1 M x1 1 M 1x1 1 SFAA x-x2 SFAA x-x SFAA x-x315 SFAA x-x M 2x1 M x1 1 2 SFAA 1x315-x315 SFAA 1x315-x4 SFAA 1x315-x M x1 M 2x1 3 SFAA x5-1x M 3x1,5 1 M 3x SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

28 Accessories for Series SFAA E P G D F H L T C Spindle unit Designation Flange Grinding wheel Range of applic. P H L E F Belt pulley Speed G Bore Depth Designation D C T min -1 SFAA SA 3-x R 5-x3 3 5 SFAA SA 5-x R -1x 1 SFAA 1 SA -51x R -5x 5 5 SFAA SA 1-x R -1x Depth of grinding: B 1 + e 1 + L + 2/3F - chucking length 2/2 Spindle Units Production prograe

29 Grinding wheel carriers for spindle with male taper d 5 taper 1: d d 4 d 2 d 1 b 3 l 4 l 3 Grinding wheel carriers for SAI for grinding small bores Grinding spindle Type Grinding wheel carriers with slotted circular nut Designation Dimensions in d 1 d 2 d 4 Grinding wheel Dimensions l 3 l 4 d 5 b 3 d Range for application Bore bis Depth SFAL 4 SAI 2-x3 1, SFAV 4 SAI 2-x4 1, SSA 5 SAI 2-1x 1, SAI 5-x SAI 5-x SAI 5-x SFAL SAI 5-x SFAV SAI 5-x SAI 5-x SAI 5-1x SAI 5-1x SFAL SFAV SSA SAI -15x SAI -1x35 SAI -1x15 SAI -23x SAI -1x SFAL SFAV SAI -2x SAI -2x SAI -x SAI -x SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

30 Series SSV Grinding spindles with an extended spindle shaft for grinding small, deep holes W hen selecting these spindles please be sure to take one with a short shaft to ensure optimum rigidity. The order includes Tool for mounting the spindle One hexagon socket nut for fastening the belt pulley Operating instructions d 5 d d 2 d 1 d 3 b 2 l 3 e b 3 l 2 l 1 b 1 Please order accessories separately Screw-in mandrel Belt pulley (see also page 45) Housing diameter Lubrication For-life grease lubrication Sense of rotation Please indicate the sense of rotation always when placing an order d 5 d d 2 b 3 l 2 Housing diameter 2/2 Spindle Units Production prograe

31 Grinding spindle Dimensions max. speed Screw-in mandrel Grinding wheel Range of application Type Number (engraved) Belt pulley min -1 Designation Dimensions Bore up to Depth max. d 1 x l 1 - d 2 x l 2 e d 3 b 1 b 2 l 3 d 5 b 3 d SSV x-1x4/ /3 5 SSV x-1x3/ / SV 4-1x SSV x-1x/ /3 15 SSV x315-1x4/ /3 5 SSV x315-1x3/ / SV 4-1x SSV x315-1x/ /3 15 SSV x-2x3/ /3 5 SSV x-2x/3 SSV x-2x1/ / /3 5 SV -1x SSV x-2x5/ /3 155 SSV x315-2x3/ /3 5 SSV x315-2x/3 SSV x315-2x1/ / /3 5 SV -1x SSV x315-2x5/ /3 155 SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

32 Series SSI / SSB Grinding spindles with female taper for grinding small bores T his universal spindle type can be used for all kinds of bore grinding tasks. The large number of screwin mandrels allows an optimum adaptation to every grinding task. d 5 d d 4 d 2 d 1 d 3 For 1 OD housings, the mandrels are inserted into a cylindrical bore and fastened by means of a threaded pin. This does not only ensure that the unit can be easily dismantled but also provides a better radial runout of the mounted mandrel (cf. abutment-dimensions table, page 4). l 3 l 2 b 3 l 4 l 1 Spindle SSI with screw-in mandrel type SI e b 2 b 1 When selecting the mandrels, please be sure to take short and sturdy shafts. The order includes Tool for mounting the spindle One hexagon socket nut for fastening the belt pulley A threaded pin for fastening the screw-in mandrel (for spindle type SSB) Operating instruction d 5 d d 4 d 2 b 3 l 4 l 3 l 2 Please order accessories separately Screw-in mandrel Belt pulley (see also page 45) Spindle SSB with screw-in mandrel type SZB Lubrication For-life grease lubrication Sense of rotation Please indicate the sense of rotation always when placing an order d 4 d l l 3 Spindle SSI with chuck SIS 3/31 Spindle Units Production prograe

33 Grinding spindle Dimensions max. speed Screw-in mandrel/chuck Grinding wheel Range of application Type Number (engraved) Shaft Belt pulley min -1 Designation Dimensions Dimensions Bore Depth up to d 1 x l 1 d 2 l 2 e d 3 b 1 b 2 d 4 l 4 l 3 d 5 b 3 d SSI 4x1/2 SSI 4x2/2 SSI 4x/ / / /2 1, 4 SIK 1-x2 SI 1-x2 SI 1-x SIS 1-3 SIS SSI 5x1/2 SSI 5x2/2 SSI 5x/2 SSI 5x315/ / / / / SIK 2-x2 SI 2-x2 SI 2-x SI 2-x SI 2-x5 SIS 2-3 SIS SSI x2/3 SSI x/2 SSI x315/2 2.-3/3 2.-4/3 2.-5/ SI 4-x SI 4-x5 SI 4-x SI 4-x SI 4-x4 SI 4-x SIS 4-3 SIS SSI x/3 SSI x315/3 SSI x4/3 2.-4/3 2.-5/3 2.-/3 2 2,5 4 SI -x4 SI -x SI -1x SI -1x1 SI -x4 SI -x SI -x SSB 1x SSB 1x315 SSB 1x4 SSB 1x SZB -x4 SZB -x SZB -x5 SZB -2x4 SZB -2x SZB -2x5 SZB -3x4 SZB -3x SZB -3x SZB -3x1 SZB -3x Note: Screw-in mandrel Type SIK is without nut - grinding wheel is cemented Type SIS are chucks for grinding sticks SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

34 Series SSA Grinding spindles with male taper for grinding deep bores and for external grinding G rinding spindle for deep holes whose diameters are wider than that of the spindle. Flanges for a housing outside diameter from have counterbalance weights for accurately balancing the grinding wheels. d 5 d 4 d d 1 d 3 The order includes Tool for mounting the spindle One hexagon socket nut each for fastening the belt pulley and the flange Operating instructions b 3 l 4 l 3 e 2 l 1 e 1 b 1 b 2 Please order accessories separately Flange Belt pulley Balancing arbour for flange Lubrication For-life grease lubrication Sense of rotation Please always indicate the sense of rotation in your order /33 Spindle Units Production prograe

35 Grinding spindle Dimensions max. speed Dimensions Range of application Type d 1 x l 1 Number (engraved) Belt pulley e 2 e 1 d 3 b 1 b 2 min -1 Designation Flange Grinding wheel d 4 l 4 l 3 d 5 b 3 d Bore up to Depth SSA 4x1/2 SSA 4x2/2 SSA 4x/2 SSA 4x315/ / / / /2 1, 3 4 SA 1-x SSA 5x1/2 SSA 5x2/2 SSA 5x/2 SSA 5x315/ / / / / SA 2-x4 4 3 SSA x2/3 SSA x/3 SSA x315/3 SSA x4/3 SSA x5/3 SSA x1/3 SSA x/3 SSA x315/3 SSA x4/3 SSA x45/3 SSA x5/3 SSA x3/3 SSA x/3 SSA x/3 3.-3/3 3.-4/3 3.-5/3 3.-/3 3.-/3 3.-2/3 3.-4/3 3.-5/3 3.-/3 3.-/3 3.-/3 3.-/3 3.-/3 3.-/3 2 2, SA 4-x5 SA -51x SA -51x l max = l 1 + e 2 + l b 3 chucking length SSA 1x315/3 SSA 1x4/3 SSA 1x5/3 SSA 1x3/3 SSA 1x/3 SSA 1x5/ /3 3.1-/3 3.1-/3 3.1-/3 3.1-/3 3.1-/3 3, SA -x SA -x SSA 5x4/3 3.-/3 SSA 5x5/3 3.-/3 5 SA 1-x SSA 5x3/3 3.-/3 2 5 SA 1-x SSA 5x/3 3.-/3 SSA 5x1/ /3 The grinding wheel flanges are supplied with shims which also allow narrower grinding wheels to be chucked. SSA x: please inquire. SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

36 Series O-SSA Grinding spindles with male taper for external grinding, internal grinding and face grinding T his spindle type is suitable for external grinding, and particularly well for face grinding. The rigidity of the bearing arrangement has been increased compared to that of the SSA spindles. The precision bearings which are used have a larger contact angle. They can also accoodate major axial loads. These spindles are used where particularly high radial and axial loads have to be accoodated. d 5 d 4 d b 3 l 4 l 3 e 2 d 1 b 2 l 1 e 1 b 1 d 3 The flange design is identical with that of the spindle series SSA. The order includes Tool for mounting the spindle One hexagon socket nut each for fastening the belt pulley and the flange Operating instructions Please order accessories separately Flange Belt pulley (see also page 45) Balancing arbour for flange Lubrication For-life grease lubrication Sense of rotation Please always indicate the sense of rotation in your order The grinding wheel flanges are supplied with shims so that narrower grinding wheels can also be mounted. 34/35 Spindle Units Production prograe

37 Grinding spindle Dimensions max. speed Dimensions Range of application Type d 1 x l 1 Number (engraved) e 2 Belt pulley e 1 d 3 b 1 b 2 min -1 Designation Flange Grinding wheel d 4 l 4 l 3 d 5 b 3 d Bore Depth O-SSA 4x1/ /2 O-SSA 4x2/2 O-SSA 4x/ / /2 1, SA 1-x O-SSA 4x315/ /2 O-SSA 5x1/ /2 O-SSA 5x2/2 O-SSA 5x/ / / SA 2-x4 4 3 O-SSA 5x315/2 O-SSA x/4 O-SSA x315/4 O-SSA x4/4 O-SSA x/4 O-SSA x315/ /2 5.-4/4 5.-5/4 5.-/4 5.-4/4 5.-5/4 2 2, SA 4-x5 SA -51x l max = l 1 + e 2 + l b 3 chucking length O-SSA x4/4 5.-/4 1 SA -51x1 1 2 O-SSA 1x315/4 O-SSA 1x4/ /4 5.1-/4 3, SA -x O-SSA 1x5/4 5.1-/4 2 SA -x O-SSA 5x4/4 O-SSA 5x5/4 5.-/4 5.-/ SA 1-x4 SA 1-x O-SSA x: please inquire. SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

38 Series SPV Precisions grinding spindles for higher speeds T hese spindles permit grinding at speeds which could so far be reached only by electric grinding spindles. SPV spindles provide a considerably higher grinding accuracy. Precision angular contact ball bearings of precision class P2S are used which provide particularly good rigidity. d 5 d d 4 l 3 b 3 l 4 l 2 d 2 d 2 l 1 e b 2 b 1 d 3 To be able to fully utilize this precision in the grinding process, screwin mandrels are used which are fastened by means of a threaded pin (with a housing diameter from ). This new fastening system guarantees utmost radial runout of the screw-in mandrel. Design with screw-in mandrel SZV Except for in-series production, these spindles are recoended for applications where the use of electric grinding spindles has not yet become cost-effective. To obtain a good belt pulley transmission ratio, the drive unit should be fitted with mediumfrequency motors. The order includes Tool for mounting the spindle One hexagon socket nut for fastening the belt pulley A threaded pin for fastening the screw-in mandrel used with SZV Operating instructions Please order accessories separately Screw-in mandrel Belt pulley (see also page 45) d 5 d d 4 b 3 l 4 l 3 l 2 Design with screw-in mandrel SZ Lubrication For-life grease lubrication Sense of rotation Please indicate always the sense of rotation when placing an order d 2 3/3 Spindle Units Production prograe

39 Grinding spindle Type d 1 x l 1 -d 2 Number (engraved) Dimensions Belt pulley l 2 e d 3 b 1 b 2 max. speed min -1 Screw-in mandrel Designation Dimensions Grinding wheel Dimensions d 4 l 4 l 3 d 5 b 3 d Range of application Bore to max. depth SPV 5x1-/3 SPV x-15/3 SPV x-1/3 SPV x-23/3 SPV x-2/3 SPV 1x315-33/3 SPV 1x315-3/3 SPV 5x315-4/ /3.-4.3/3.-4.4/3.-4.5/3.-4./3.1-5./3.1-5./3.-5.1/ SZK 2-x1 SZ 2-x1 SZ 2-x SK 2-x1 SK 2-x SK 3-x1 SZ 3-x2 SZ 3-x1 SZ 3-x SZ 3-15x2 SZ 3-15x4 SZ 4-x1 SZ 4-x SZ 4-x2 SZ 4-x SZ 4-1x SZ 4-1x4 SZV 5-x1 SZV 5-x SZV 5-1x2 SZV 5-1x4 SZV 5-23x SZV 5-23x5 SZV -1x2 SZV -1x4 SZV -x SZV -x5 SZV -2x4 SZV -2x3 SZV -x SZV -x5 SZV -2x4 SZV -2x3 SZV -33x5 SZV -33x SZV -x SZV -x5 SZV -2x4 SZV -2x3 SZV -3x5 SZV -3x SZV 1-2x4 SZV 1-2x3 SZV 1-35x5 SZV 1-35x SZV 1-4x3 SZV 1-4x * * 1 * 1 * 1 * * * 1 * Please note: Screw-in mandrels of type SZK have no nut, the grinding wheel is cemented on. * These screw-in mandrels are not stepped (d 4 = d 2 ). SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

40 Series SPA Precision grinding spindles with male taper for grinding deep bores and for external grinding T hese grinding spindles provide a greater grinding accuracy than the SSA spindles. Precision ball bearing of precision class P2S are used. Special care has to be taken that the grinding wheels are carefully balanced. d 5 d 4 d d 1 d 3 The grinding wheel flanges are supplied with shims so that narrower grinding wheels can also be mounted. b 3 l 4 e 2 b 2 The order includes Tool for mounting the spindle One hexagon socket nut each for fastening the belt pulley and the flange Operating instructions Please order accessories separately Flange Belt pulley (see also page 45) Balancing arbour for flange l 3 Lubrication For-life grease lubrication Sense of rotation Please always indicate the sense of rotation in your order l 1 e 1 b 1 Grinding spindle Dimensions max. speed Dimensions Range of application Type d 1 x l 1 Number (engraved) Belt pulley e 2 e 1 d 3 b 1 b 2 Flange Grinding min -1 wheel Designation d 4 l 3 l 4 d 5 b 3 d Bore up to Depth SPA SPA SPA 1x315/2 SPA 1x4/2 SPA 5x4/2.1-5/2.1-/2.-/2 3, Please inquire Please inquire SA -x SA -x SA 1- x4 1 SA 1- x l max = l 1 + e 2 + l b 3 chucking length 3/3 Spindle Units Production prograe

41 Series SPAZ Tooth-flank precision grinding spindles T ooth-flank grinding spindles are spindles of highest precision. They fulfil specific requirements l 4 Zero clearance Deviation of radial runout and face A h runout (drive end),1 High radial and axial stiffness Minimized excessive temperature d 1 rise and Minimized shaft elongation in action All tooth-flank grinding spindles are fitted with high-speed resp. hybridspindle bearings of tolerance class ABEC. Spindle units fitted with hybrid-spindle bearings are provided for high-speed machining. The spindle units are driven by Poly-Vbelt drive. l 2 l 1 l 3 Tooth-flank grinding spindles, equipped for insert of built-in balance apparatus Type Speed max. min -1 T ü. RT K A h Main dimensions in l 1 l 2 l 3 d 1 l 4 Grinding wheel Dimensions in B D i D a SPAZ -/ ; SPAZ 5-4/ , ; ; 35; 4; 5; 3 Tooth-flank grinding spindles, clockwise or counter-clockwise rotation Type Speed max. T ü. RT Main dimensions in Grinding wheel Dimensions in min -1 K A h l 1 l 2 l 3 D i D a B SPAZ 1-5/2 2) 3 2 3) SPAZC 1-5/2 2) (Hybridlagerung) ) SPAZ -/ ) ; SPAZ 5-34/ ) ; ; 4; 5; 3 Spindle units for clockwise and counter-clockwise rotation 2) SPAZ 1: Spindle housing without flange 3) excessive temperature rise, measured at n = 2 4 / 2 2 min -1 4) special CBN-Grinding wheel with special flange SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

42 Series IAO / SSST Face grinding spindles T hese spindles are intended specially for the face grinding attachments of internal grinding machines. The order includes Tool for mounting the spindle One nut each for fastening the belt pulley and the flange Operating instructions IAO/1 d 5 d 4 d d 1 b 4 e l l 1 b 1 l 2 b 3 b 2 d 3 Please order accessories separately Flange Belt pulley (see also page 45) Flange balancing arbour (only for SSST 2/2) d 5 d 4 d d 1 d 3 Lubrication For-life grease lubrication b 4 b 3 b 2 b 1 Sense of rotation Please always indicate the sense of rotation in your order SSST 5/1 l 5 l l 1 l 2 Order designation of belt pulleys IAO/1 RSo 2-5 x 4 SSST 5/1 RSo 5 - x 5 SSST 2/2 RSo - 2 x 52 d 5 d 4 d d 1 d 3 e l b 3 l 3 b 2 b 1 SSST 2/2 b 4 l 5 l 4 l 1 l 2 Grinding spindle Type Main dimensions Belt pulley max. speed Flange Grinding wheel Designation d 1 l 1 l 2 l 5 l e d 3 b 1 b 2 min d 4 l 3 l 4 d 5 b 4 d b 3 IAO/1 SSST 5/ IAO/1 : 15 SSST 5/1 : SSST 2/ SSST 2/2-x Cup wheel (types and 2), external dimensions indicated above the line, internal dimensions below the line /41 Spindle Units Production prograe

43 Series SSAA Grinding spindles with male taper and stepped spindle housing for grinding deep bores T hese spindles are suitable for grinding particularly deep holes which cannot be ground with any other spindle type. The flange design is identical with those of the spindles of series SSA, but the d1 of series SSA is here designated d 2. d 5 d 4 d d 2 d 1 d 3 The order includes Tools for mounting the spindle One hexagon socket nut each for fastening the belt pulley and the flange Operating instructions b 3 l 4 l 3 e 2 l 2 b 2 l 1 e 1 b 1 Please order accessories separately Flange Belt pulley (see also page 45) Flange balancing arbour Lubrication For-life grease lubrication Sense of rotation Please always indicate the sense of rotation in your order The grinding wheel flanges are supplied with shims which also allow narrower grinding wheels to be chucked. Grinding spindle Type d 1 x l 1 d 2 x l 2 Number (engraved) Dimensions Belt pulley e 2 e 1 d 3 b 1 b 2 max. speed Dimensions Flange Grinding min -1 wheel Designation d 4 l 3 l 4 d 5 b 3 d Range of application Bore Depth SSAA x-5x1/3 SSAA x-5x2/3 SSAA x-5x/3 SSAA x-5x315/3 SSAA x-x/3 SSAA x-x315/3 SSAA x-x4/3 SSAA x315-x2/3 SSAA x315-x/3 SSAA x315-x315/3 SSAA x315-x4/ / / / / / / / / / / / SA 2-x4 SA 4-x5 SA 4-x l max = l 1 + e 2 + l b 3 chucking length SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

44 Series MNFA Motor grinding spindles T he motor grinding spindle is a complete, multi-purpose unit for external grinding, internal grinding, face grinding und surface grinding. The fact that both the spindle and the drive unit are mounted on the same shaft, and the use of precision ball bearings of tolerance class P2S, guarantee an extreme quietness of running and thus optimum grinding results. All spindles are suitable for clockwise rotation and counter-clockwise rotation. The sense of rotation can be altered by reversing the poles of the electrical connection. The units are driven by three-phase asynchronous motors to which they are connected via the terminal box of the motor. The speed of motor can be adjusted on working with a frequency transformer. The order includes Tool for mounting the spindle One hexagon socket nut for fastening the flange Operating instructions Please order accessories separately Flange (see also page 44) Balancing arbour for flange Lubrication For-life grease lubrication Technical data Nominal voltage: U = 23/4 V Frequency: f = 5 Hz Protection grade IP 54 SW fitting key h M K A h5 d 3 taper 1: air entry b l S L e B l 5 B l l 2 42/43 Spindle Units Production prograe

45 Motor spindle Type A x B Dimensions K L e b M l SW S h d 3 l 2 l 5 B 1 DIN KPR min -1 kw A kg Fitting key Motor type max. speed Power Current Weigth MNFA x2/21 MNFA x315/21 MNFA x4/ M x x,5 1G2 2 1,1 2, MNFA x2/2 MNFA x315/2 MNFA x4/ M 15x x,5 G ,2 4, MNFA x5/ MNFA x2/ MNFA x315/2 MNFA x4/ M 15x x,5 G ,5 3, 35 3 MNFA x5/ MNFA 1x315/21 5 MNFA 1x4/21 MNFA 1x5/ M x x L ,,3 54 MNFA 1x/21 MNFA 1x315/ 5 MNFA 1x4/ MNFA 1x5/ M x x L ,2,3 54 MNFA 1x/ MNFA 5x4/21 MNFA 5x5/ M 3x1, x 1M ,5 1,1 1 MNFA 5x4/ MNFA 5x5/ M 3x1, x 1M2 2 5,5 1,1 1 MNFA x4/21 MNFA x5/ M 3x1, x 1M ,5,1 4 MNFA x4/ MNFA x5/ M 3x1, x 1M2 2 5,5,1 4 Maximum permissible speed on working with frequency transformer up to 1 Hz. SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

46 Accessories for series MNFA a t E P G F L H Type Flange Grinding wheel Range of applic. Speed Designation P H L a t E F G Bore Depth min -1 MNFA SARL 5-51x H 2, MNFA SARL -51x H 2, MNFA 1 SARL -x2 2 1 H 2, MNFA 5 MNFA SARL -x H 2, Maximum depth of grinding: B + e + L + 2/3 F - chucking length 44/45 Spindle Units Production prograe

47 R Belt pulleys for grinding spindles B esides the belt pulleys for the standard accessories for grinding spindles, belt pulleys of other dimensions are also available. The belt pulley diameters are made according to the standardized series R 1 / R 2 so that there is a well assorted variety of belt pulleys available for every application. R - Ø x b b Ø = Width of belt pulley = Belt pulley diameter = Taper number Identifying letter: R = Belt pulley for one direction of rotation RRL = Belt pulley for clockwise and counter-clockwise rotation Designation Narrower belt pulleys are used for precision spindles as they work at higher speeds and usually with a lower drive power. Design Belt pulleys of good quality are produced and balanced. They can be used alternatively with standard spindles or with precision spindles. Order example Belt pulley for a grinding spindle with a housing outside diameter of, a diameter of and a width of 3 : R 4- x 3 Assortment for grinding spindles Designation Belt pulley (diameter in ) (5) 3 ( () 1 () 5 () Width b Spindle units R -... R R R R R R -... R -... R -... R -... R R -... R -... R -... R ; 5 5; 3 3 1; ; 1 1; SF... x... SS... 4x... SF... 4x... SS... 5x... SPV 5x1- SF... 5x... SPV x-15 SS... x... SPV x-1 SF... x... SPV x-23 SF... x... SS... x... SPV x-2 SF... x... SPV 1x SS... 1x... SPV 1x315-3 SF... 1x... SS... 5x... SPV 5x315-4 SFAV x... SFAV x... SFAV 1x... SFAV 2x... SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

48 Series SSI Abutment dimensions SW d 2 d d 5 taper 1:1 d 2 d 5 d d 1 h l 3 l 4 t 3 t 4 Abutment dimensions for belt-driven grinding spindles with a female taper and screw-in mandrel Grinding spindle Grinding end with screw-in mandrel Dimensions in Type d 1 d 2 d 5 d l 3 l 4 t 3 t 4 SW SSI 4 4 M SSI M 3 1 SSI 1 M SSI 2 M Clockwise rotation righthand thread; counter-clockwise rotation lefthand thread 4/4 Spindle Units Production prograe

49 Series SPV / SSV / SSB Abutment dimensions SPV 5 SPV SSV SSV SW d 2 d 5 d 4 d 2 d 3 d 4 d 1 h b l 1 t 1 t 2 l 3 l 2 SPV SPV 1 SPV 5 SW b,5 R, SW b SSB 1 d 4 d 5 d d 2 d 2 d 3 d 4 d 1 h l 3 t 4 l 4 thread pin DIN -. t 1 t2 Abutment dimensions for belt-driven grinding spindles with a cylindrical hole or extended spindle shaft Grinding spindle d 1 Grinding end with screw-in mandrel Dimensions in Type d 2 d 3 d 4 d 5 d l 1 l 2 l 3 l 4 t 1 t 2 t 4 b SW Thread pin 3) SPV 5x1-/3 5,5,2 +,4 M,2 -,2 -,4,5 21 1,5 SPV x-15/3 15,5,2 +,4 M,2 -,2 -,5 23 SPV x-1/3 1 1,2 +,4 M 1x1 1,2 -,2 -, SSV 1 1 H M 1 h5 15 2) 3 SPV x-23/3 23,2 +,4 M,2 -,2 -, M x3 SPV x-2/3 2 1,2 +, M 1,2 -,2 -, M x35 SSV 2 1 H M 1 h SPV 1x315-33/ ,2 +, M 1 1,2 -,2 -, M 1x4 SPV 1x315-3/3 1 3, +, M, -,2 -, M x5 SSB H M h M x5 SPV 5x315-4/ , +, M 2, -,2 -, M x5 Clockwise rotation righthand thread; 2) A fitting bolt is used counter-clockwise rotation lefthand thread 3) Minimum quality. according to DIN -. SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

50 Series SSA / O-SSA / SPV / SPA Abutment dimensions taper 1: d 1 d 2 d taper 1: d 2 d 1 h l l l 1 l +2 Abutment dimensions for belt-driven grinding spindles with male taper and flange Grinding spindle Grinding end with flange Dimensions in Type d 1 d 2 d d 1 l l l 1 SSA M M x1 SSA, O-SSA 4 M M 1x1,5 1 SSA, O-SSA, SSAA 5 M x1 M 1x1,5 2 3 SSA, O-SSA, SPA, SSAA 1 M 1x1 2) M 2x1, SSA, O-SSA, SPA 2 M 15x1 2) M x1, SSA, O-SSA, SPA, SPAZ 1-5/1 1 3 M x1 2) M 4x1, SSA, O-SSA, SPA, SPAZ 1-1/1 5 4 M 3x1 2) M 5x1,5 3 5 Clockwise rotation righthand thread; counter-clockwise rotation lefthand thread 2) Clockwise rotation and counter-clockwise rotation (only SSA and O-SSA righthand thread) 4/4 Spindle Units Production prograe

51 All series Abutment dimensions b SW d 1 h taper 1: d d d taper 1: d l 5 l 4 +2 l e l 4 Abutment dimensions; all types Grinding spindle Drive end with belt pulley Dimensions in Type d 1 b SW e d l 4 l 5 l d d SSA 4 5 M M x1 SSI, SSA, O-SSA 4 5 M M 1x1,5 1 SSI, SSA, O-SSA, SPV 5x1-/3 5 M x1 M 1x1,5 2 SPV x-15/3 15,5 M 1x1 2) M 2x1,5 SSV, SSI, SSA, O-SSA, SSAA, SPA, SPV x-1/3 1 M 1x1 2) M 2x1,5 2 SPV x-23/3 1 1 M x1 M x1, SSV, SSI, SSA, O-SSA, SSAA, SPA, SPV x-2/3 1 2 M 15x1 2) M x1, SPV 1x315-33/ M 2x1 2) M 3x1,5 4 1 SSV, SSB, SSA, O-SSA, SPA, SPV 1x315-3/3, SPAZ 1 SSA, O-SSA, SPA, SPV 5x315-4/ M x1 2) M 3x1 2) M 4x1,5 M 5x1, Clockwise rotation righthand thread; counter-clockwise rotation lefthand thread 2) Clockwise rotation and counter-clockwise rotation (only SSA and O-SSA righthand thread) SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

52 Safety requirements F or mounting a spindle and for fastening grinding wheels on flanges or screw-in mandrels, the requirements of the DIN standard must be observed. The safety requirements shown here should only be considered as minimum requirements. d 2 d D D d 2 d h Problems may be caused by screwin mandrels or grinding wheels. Wornout parts, especially screw-in mandrels, have to be replaced in time. Out-of-round mandrels have to be replaced in time as well. If you produce mandrels yourself make sure that the replacement mandrels are of the same quality as the original ones. Especially long mandrels possibly require a speed reduction. In such case we recoend consulting the manufacturer. d = bore diameter of the grinding wheel The mounting of the grinding wheel on spindle directly b h =,5 (D-d) a =,5 (d 2 -d) The mounting of the grinding wheel on flange Flanges used for the different machines (excerpt) b a The safety of the mounted spindle has to be proved in connection with the grinding machine. Grinding machine Type Guard Form Grinding wheel Bond Outside diameter Width Diameter Flange Interference The sense of rotation is indicated on the spindles and support flanges by arrows. Spindles for clockwise rotation and counter-clockwise rotation may only be used with flanges and belt pulleys respectively for clockwise rotation and counter-clockwise rotation (RL); this holds especially if both senses of rotation are used. Stationary grinding machines without straight chamfered on both sides all D = < b d 2 d_ D =<,2 2_ = > D 3 1_ = > D 2 a d_ D >,2 The spindle speed has to be selected such that the admissible circumferential speed of the grinding wheels is not exceeded even in idle operation. with all all all all 1_ = > D 3 1_ = > h 5/51 Spindle Units

53 Stiffness Stiffness of bearings arranged grinding spindles units Stiffness The indicated stiffness ratings are radial guiding values for selection of spindle type most suitable for a specific range of application. The radial ratings of stiffness are mean values and therefore they are valid for all lengths of spindles. SFIL SFIV axial In certain bounds the stiffness of grinding spindle units can be adjusted optimum to particular application by selective measures. SFAL SFAV SFAA MNFA axial radial Type Stiffness N/µm Type Stiffness N/µm axial radial axial radial SFIL 4 3 SFAV SFIL SFAV 5 SFIL 41 5 SFAV 1 43 SFIL 52 SFAV 15 SFIL 5 SFAV 13 SFAV SFIV 1 5 SFAV SFIV 15 1 SFAV SFIV 13 5 SFAV SFIV SFAV 2 3 SFAL 1 SFAA SFAL SFAA 1 43 SFAL SFAA 1 13 SFAL 41 3 SFAA 234 SFAL 52 4 SFAL 5 5 MNFA 1 1 MNFA 15 MNFA MNFA 5 MNFA SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

54 Weight table of grinding spindles Spindle weight without accessories Spindle unit SFIL 4x1 SFIL 4x2 SFIL 4x SFIL 5x1 SFIL 5x2 SFIL 5x SFIL x2 SFIL x SFIL x315 SFIL x2 SFIL x SFIL x315 SFIL x2 SFIL x SFIL x315 SFIV x2 SFIV x SFIV x315 SFIV x4 SFIV x SFIV x315 SFIV x SFIV x315 SFIV x4 SFIV 1x315 SFIV 1x4 SFIV 1x5 SFAL x5 SFAL x1 SFAL x2 SFAL 4x1 SFAL 4x2 SFAL 4x SFAL 5x1 SFAL 5x2 SFAL 5x SFAL x2 SFAL x SFAL x315 SFAL x2 SFAL x SFAL x315 SFAL x2 SFAL x SFAL x315 SFAV 4x1 SFAV 4x2 SFAV 4x SFAV 4x315 Weight kg 1,4 1, 2,1 2,2 2, 3,4 3, 4,, 5,2,5,2,,,2 3, 4,,,,5,2,,2, 1,, 2,,, 1, 1,4 1, 2,1 2,2 2, 3,4 3, 4,, 5,2,5,2,,,2 1,5 1, 2,2 2, Spindle unit SFAV 5x1 SFAV 5x2 SFAV 5x SFAV 5x315 SFAV x2 SFAV x SFAV x315 SFAV x4 SFAV x5 SFAV x2 SFAV x SFAV x315 SFAV x4 SFAV x5 SFAV x SFAV x315 SFAV x4 SFAV x5 SFAV x3 SFAV 1x315 SFAV 1x4 SFAV 1x5 SFAV 1x3 SFAV 1x SFAV x4 SFAV x5 SFAV x3 SFAV x SFAV x4 SFAV x5 SFAV x3 SFAV 1x4 SFAV 1x5 SFAV 1x3 SFAV 2x5 SFAV 2x3 SFAA x-5x1 SFAA x-5x2 SFAA x-5x SFAA x-5x315 SFAA x-x2 SFAA x-x SFAA x-x315 SFAA x-x4 SFAA 1x315-x315 SFAA 1x315-x4 SFAA 1x315-x5 SFAA x5-1x3 SSV x-1x4 SSV x-1x3 SSV x-1x Weight kg 2,2 2, 3,4 4,3 3, 4,,,,5 5,5,,5 1,,5,,2,3 1,, 1,, 2, 3, 4, 31, 3, 4, 3,3 3, 53,, 5,3,4,,,5,4,,,5,, 1, 1,3 2, 31, 35,3 5,3 5, 5,, Spindle unit SSV x35-1x4 SSV x35-1x3 SSV x35-1x SSV x-2x3 SSV x-2x SSV x-2x1 SSV x-2x5 SSV x315-2x3 SSV x315-2x SSV x315-2x1 SSV x315-2x5 SSI 4x1 SSI 4x2 SSI 4x SSI 5x1 SSI 5x2 SSI 5x SSI 5x315 SSI x2 SSI x SSI x315 SSI x SSI x315 SSI x4 SSB 1x315 SSB 1x4 SSB 1x5 SSA x5 SSA x1 SSA x2 SSA 4x1 SSA 4x2 SSA 4x SSA 4x315 SSA 5x1 SSA 5x2 SSA 5x SSA 5x315 SSA x2 SSA x SSA x315 SSA x4 SSA x5 SSA x SSA x315 SSA x4 SSA x5 SSA x3 SSA 1x315 SSA 1x4 SSA 1x5 SSA 1x3 SSA 1x Weight kg,,, 1,3 1,4 1,5 1,,4,5,, 1,5 1, 2,1 2,1 2, 3, 3,3 3,5 4,4 5,5,,,2 1,5,5 2,4,,, 1,4 1, 2,1 2, 2,2 2, 3,4 4,3 3, 4,,,,5,,2,3 1,, 1,, 2, 3, 4, Spindle unit SSA 5x4 SSA 5x5 SSA 5x3 SSA 5x O-SSA 4x1 O-SSA 4x2 O-SSA 4x O-SSA 4x315 O-SSA 5x1 O-SSA 5x2 O-SSA 5x O-SSA 5x315 O-SSA x O-SSA x315 O-SSA x4 O-SSA x O-SSA x315 O-SSA x4 O-SSA 1x315 O-SSA 1x4 O-SSA 1x5 O-SSA 5x4 O-SSA 5x5 SPV 5x1- SPV x-15 SPV x-1 SPV x-23 SPV x-2 SPV 1x SPV 1x315-3 SPV 5x315-4 SPA 1x4 SPA 5x4 SPAZ 1- IAO/1 SSST 5/1 SSST 2/2 SSAA x-5x1 SSAA x-5x2 SSAA x-5x SSAA x-5x315 SSAA x-x SSAA x-x315 SSAA x-x4 SSAA x315-x2 SSAA x315-x SSAA x315-x315 SSAA x315-x4 Weight kg 3, 45, 5, 3,5 1,4 1, 2,1 2, 2,2 2, 3,4 4,3 4,,,,,2,3 1,, 2, 3, 45, 2,15 4,5 4,,5, 1, 1,5 2,5 23,3 34, 1, 1,1 4,1 5,3,4,,,5,2 1, 1,3 15,5 1,5 1, 1,5 52/53 Spindle Units

55 Circumferential speeds Grinding spindle speed (n) min -1 3 Grinding wheel O.D. (d) Circumferential speed v (m/s) 1,,1 31,4 3, 5,3 2, 15,1 2,1,1 3,2 4,2 5,3 5,4 2,3 15,1 1,, 3,2 3, 4,,3, 15, 1,,1 31,4 4, 5,3 2, 4, 15,1 2,1,1, 4,2 5,3 2,,4 43,5 1,,5 2,3 3,1 45,1 5,3 2, , 15,1, 21, 1, 1,3 2,2,5,5 33,5 3,3 2, 41, 3, 34, 52,4 4,1 43,2,,3 55,3 3, 5,4,2 High-speed grinding wheels required,4 1, 21, 2, 33,5 41, 53,, 3, 3 15, 2,4,1 31,4 3,3 5,3 2,, 2 15,2 1,,3 3,4 3, 4,, 5, 2,1 1,4, 2,3 35,4 45,3 5,5,,1 1, 2, 2,2, 41, 52,4 5,5 1,3 2,1,1 31,4 4,2 5,2 2,,1 5 15,3 1, 23, 2,5 3, 4,1 5, 4,2 21,3 1,, 2,5 35,2 44, 55,,2 2 1, 2, 2,2 33,5 41, 52,4, 3, 1 15, 1,, 31, 3, 4, 2,, 1 15,1 1, 23, 3,2 3, 4,1 5,4 5,5 1 1, 21, 2, 33,5 41, 52,,1 3, 15 15, 1,,1 31,4 3,3 4,5 2,,, 1,3 23,5 2,3 3, 4,2 5, 3,3 5,1 1,, 2,3 35,4 44, 5,,, 1, 21, 2,2 34, 42, 54,5,1 5 1,4 2, 2,2, 41,2 52,4 5,5 1, 15, 2,1,1 31,4 3, 5,3 2,, 5 15,1 1,3,1 3,1 3, 4,2,2 5,3 1,4 23, 2, 3,3 4,1 5, 2, 2, ,, 2,5 34, 44, 55,,, 1 Standard grinding wheels (up to 35 m/s) 1, 2, 1, 1, 2,2 23, 2, 33, 2, 2,4 41, 3, 33,5 52,4 4,1 41, 5,5 5, 52,4 3, 5,4, 4,3 3, 5 15, 1,, 31,4 3,3 4,1 2,,5 1,3 23,1 2,3 3, 45, 5, 3, 1, 15, 1,,1 31,4 3,3 5,3 2,, 5 5,4 1,1 23, 2, 3, 4,4 5, 2, 5 1, 21,3 2, 33,2 42,5 53,2,5 3, 4,2 1, 2, 2,2 33,5 41, 52,4, 2 5,4,, 1, 23, 2, 3,3 4, 1 44,3,54,42,1 15,1 1, 23, v = 5, 1-5 d n v (m/s) d () n (min -1 ) SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

56 Notices 54/55 Spindle Units

57 SPINDEL- UND LAGERUNGSTECHNIK FRAUREUTH GMBH

58 Production prograe and position Belt-driven grinding spindles of all types, with accessories Motor grinding spindles with flanged-on motor (standard frequency) Motor grinding spindles with integrated motor (medium frequency) Special grinding spindles for many applications e.g. grinding of decoration glass, wood working So you can find us: Leipzig Hermsdorf A 4 Altenburg 3 Erfurt A 4 Hermsdorfer Kreuz A 2 GERA 4 Ronneburg A 4 Criitschau Meerane Dresden Pößneck 21 3 Triptis 2 15 Weida 2 15 Berga Elster Teichwolframsdorf Langenbernsdorf Werdau Mosel Zeulenroda 4 Mohlsdorf Greiz Reichenbach Vogtland ZWICKAU 13 Neumark 2 Chemnitz A Schleiz A 2 1 Lengenfeld Nürnberg Plauen Hof 1 4 Auerbach i.v. 5 Spindle Units

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60 Spindel- und Lagerungstechnik Fraureuth GmbH Fabrikgelände 5 D-42 Fraureuth/Sachsen Telephone +4 / 3 1 / 1- Fax +4 / 3 1 / / 3 1 / 1- Internet slf@slf-fraureuth.de