SLIDE SHAFT SPINDLE SHAFT
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- Bonnie Lester
- 5 years ago
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1 SLIDE SPINDLE SLIDE ADVANTAGES F- TYPES F-3 CALCULATION OF DEFLECTION AND DEFLECTION ANGLE F-4 NB SN TYPE F-6 NB STAINLESS STEEL SNS TYPE F-7 NB HOLLOW SNT TYPE F-8 NB CENTER-LINED TAPPED SN(S)B TYPE F-9 SUPPORTER AND SUPPORT RAIL F- ACCURACY OF SA TYPE SUPPORT RAIL F- SUPPORTER SH-A TYPE F-11 SUPPORTER SH TYPE F-1 SUPPORTER SHF TYPE F-13 SUPPORT RAIL SA TYPE F-14 SUPPORTER WH-A TYPE (INCH SIZE) F-16 SUPPORT RAIL WA TYPE (INCH SIZE) F-18 LOW SUPPORT RAIL LWA TYPE (INCH SIZE) F-19 SUPPORT ASSEMBLY WSS TYPE (STANDARD TYPE) F-0 SUPPORT ASSEMBLY WSS-SS TYPE (STAINLESS TYPE) F-1 NBCA SF TYPE F- NBCA STAINLESS STEEL SFS TYPE F-3 NBCA INCH SFW TYPE F-4 NBCA INCH STAINLESS STEEL SFWS TYPE F- NBCA INCH PRE-DRILLED SFW-PD TYPE F-6 NBCA INCH PRE-DRILLED STAINLESS STEEL SFWS-PD TYPE F-7 FORMAT SINGLE END TAPPED INCH SFW TYPE F-8 FORMAT BOTH ENDS TAPPED INCH SFW TYPE F-9 FORMAT THREADED INCH S SFW TYPE (SINGLE END THREADED) F-30 FORMAT THREADED INCH S SFW TYPE (BOTH ENDS THREADED) F-31 PRE-CUT SLIDE S PC TYPE F-3 FIT SERIES F-33 SPINDLE /SPINDLE UNIT ADVANTAGES F-34 SPINDLE UNIT SPECIFICATIONS (EXAMPLE) F-36 EXAMPLES OF MACHINING F-36 EXAMPLE OF DRAWING1 F-37 EXAMPLE OF DRAWING F-38 EXAMPLE OF DRAWING3 F-39 GENERAL MACHINE ING ADVANTAGES F-40 MACHINING SPECIFICATIONS F-40 EXAMPLES OF MACHINING1 F-41 EXAMPLES OF MACHINING F-4 F-1
2 TYPES The NB shaft can be used in a wide range of applications as a mechanical component from straight shaft to spindle shaft. NB's expertise in machining and heat-treatment turns into manufacturing spindle shaft, roll shaft, and general machinery shaft for rotational motion. NB's high accuracy technology answers various shaft machining requirements. SN/SNS/SNT type (NB Shaft) NB shaft is a high-precision shaft that can be used with slide bush or any other bearings. A wide range of machining is provided for customer drawings and requirements. Table F-1 Specifications type material outer diameter tolerance hardness surface roughness page SN type SUJ SNS type SNT type equivalent to SUS440C SUJ(hollow shaft) g6 or to be specified HRC or more 56HRC or more HRC or more Ra0.4 or less page F-6 page F-7 page F-8 ADVANTAGES SNB/SNSB type (NB Center-lined Tapped Shaft) Center-lined tapped shafts are standardized series for easy selection that can be used with the SA shaft support rails. (refer to page F-14) Advanced Machining Technology NB performs a wide variety of highly accurate machining processes to provide custom shafting from relatively simple machining, such as tapping and shaft stepping to the more demanding highspeed rotating shafts and spindles. NB can also answer the special grinding and bore machining requirements. Excellent Wear Resistance Most coonly used materials are high-carbon chromium bearing steel (SUJ) and martensite stainless steel (SUS440C or equivalent). NB's advanced heat-treatment technology gives these materials an excellent wear resistance by quenching and tempering to achieve a uniform hardened layer in the circumferential and axial directions. The cross-sectional picture below shows the hardened layer-depth of the NB shaft. Hardened Layer (cross section) Wide Selection of Shaft Types SN type, SNS type, SNT type, SNB, SNSB type (Center-lined tapped shaft) Spindle shaft, roll shaft Special Requirements Based on the customer drawings and specifications NB will answer the customer requirements in material (SCM, SKS etc.), heat-treatment, surface treatment, etc. Shaft Supporter and Shaft Support Rail These components ease the shaft installation and help save the design/assembling time. (refer to page F-) FIT Series This series is a set of NB slide bush and NB shaft. By precise shaft-grinding, FIT series achieves the best-fit clearance adjustment for a smooth, high accuracy linear motion. (refer to page F-33) Shaft Supporter and Shaft Support Rail SH-A type SH type P.F-11 P.F-1 Table F- Specifications type material outer diameter tolerance hardness surface roughness page SHF type SHF-FC type SNB type SNSB type SUJ equivalent to SUS440C g6 or to be specified HRC or more 56HRC or more Ra0.4 or less page F-9 P.F-13 SA type P.F-14 WH-A type WA type LWA type Surface Roughness Precision grinding results in a surface roughness of less than Ra0.4. P.F-16 Special Specifications P.F-18 P.F-19 B ased o n d rawings a n d s p e cific atio ns, N B manufactures spindle shafts, and roll shafts for the rotary motion application. Material, heat-treatment (hardening/tempering), surface treatment, etc, NB meets customer requirements. Please contact NB for details. P.F-34 F- F-3
3 CALCULATION OF DEFLECTION AND DEFLECTION ANGLE The following formulas are used to obtain the deflection and its angle of the shaft. Typical conditions are listed in Table F-3. Table F-3 Formulas for Calculating Deflection and Deflection Angle support specification formula for deflection formula for deflection angle method support support fixed fixed support support fixed fixed support support fixed fixed fixed free fixed free support support fixed fixed δ1 δ1 a i1 i1 a l/ l/ P P l/ i1 l/ i1 P l P l l l b l b l l l l l Mo Mo i1 a P a P P i uniformly distributed load p i uniformly distributed load p i uniformly distributed load p i1 i = Pl3 48EI =Pl3 C = = 5pl4 = Pl3 19EI = 1 Pl3 C 4 384EI = 5 8 pl4 384EI = 1 8 i= Pl 16EI =3Pl C δ1: deflection at the concentrated load point( ) : maximum deflection( ) i1: deflection angle at the concentrated load point(rad) i: deflection angle at the support point(rad) Mo: moment(n ) P: concentrated load(n) p: uniformly distributed load(n/ ) a,b: concentrated load point distance( ) l: span( ) I: moment of inertia of area( 4 ) E: modulus of longitudinal elasticity(suj).06 5 (N/ )(SUS).0 5 (N/ ) C: 1/48EI(1/N ) F-4 pl4 C pl4 C δ1= Pa3 3b =8Pa 6EI + 3 3b C a + a = Pa3 3l =Pa 4EI 4 3 3l C a 4 a δ1= Pa3 3a =8Pa 6EI 3 3a C l l = Pa3 =Pa 4EI + 3b 3 C a + 3b a = Pl3 3EI =16Pl3 C = pl4 8EI =6pl4 C = 3Mol = 3 Mol 16EI C 9 = Mol = Mol 16EI C 9 i1=0 i1=0 =0 i= pl3 4EI =pl3 C i=0 i1= Pab EI =4PabC i= Pa(a+b) =4Pa(a+b)C EI i1= Pa b 4Pa bc = EIl l i=0 i1= Pl EI =4Pl C i=0 i1= pl3 6EI =8pl3 C i=0 i1= Mol 1EI =4MolC i= Mol 4EI =MolC i1= Mol 16EI =3MolC i=0 The moment of inertia of area (I) is obtained using the following formulas: For solid shaft For hollow shaft πd I= 4 64 π I= (D 64 4 d 4 ) I: moment of inertia of area( 4 ) D: outer diameter() d: inner diameter() The values of the moment of inertia of area and C (=1/48 EI) for NB shafts are listed in Table F-4 and F-5. Calculation Examples 1. Calculating the maximum deflection of a 30 shaft with a 0 span when a concentrated load of 980 N is applied at the mid-point of the shaft (neglecting the shaft weight) 1In case the support method is support-support: From the given conditions, P = 980 N, l = 0 From Table F-4, C for an outer diameter of 30, C=.54 1 (N ). Substituting these values into the corresponding formula (No. 1) in Table F-3, =Pl 3 C=0.31() In case the support method is fixed-fixed: Substituting the values into the corresponding formula (No. ) given in Table F-3, 1 = Pl 3 C=0.08() 4.Calculating the maximum deflection of a shaft with an inner diameter of 3 and a,000 span by its own weight From Table F-5, C for an outer diameter of, C= (N ) The mass per unit length of a shaft with an outer diameter of and an inner diameter of 3 is 15.9kg /m. Therefore, a uniformly distributed load of N/ is applied. Substituting these values into the formula (No. 3) given in Table F-3. 5 = pl 4 C=0.7() 8 F-5 Table F-4 Solid Shaft outer diameter moment of inertia of area C=1/48EI(1/N ) D() I( 4 ) SUJ equivalent to SUS440C Table F-5 Hollow Shaft outer diameter inner diameter moment of inertia of area D() d() I( 4 ) C=1/48EI (1/N )
4 SN TYPE - NB Shaft - example SN h5 576 SNS TYPE - NB Stainless Steel Shaft - example SNS h5 576 SN type outer diameter(d) length(l) outer diameter tolerance g6 when blank SNS type outer diameter(d) length(l) outer diameter tolerance g6 when blank outer diameter D tolerance g6 μm SN 3 3 / 8 SN SN SN 6 6 SN SN SN 1 SN 13 SN 15 SN SN SN 0 SN SN SN SN SN SN 80 SN SN SN / 39 material: high-carbon chromium bearing steel (SUJ) Tolerances other than g6 are available upon request. length L hardness: HRC (HV697) or more F-6 mass Kg/m outer diameter D tolerance g6 μm SNS 3 3 / 8 SNS SNS SNS 6 6 SNS SNS 14 SNS SNS SNS SNS SNS 0 SNS SNS SNS SNS SNS SNS 80 SNS / 34 length L material: martensite stainless steel (equivalent to SUS440C) hardness: 56HRC (HV613) or more The maximum length of hardening is up to 40 for shafts with diameter over 80. Tolerances other than g6 are available upon request. F-7 mass Kg/m
5 SNT TYPE - NB Hollow Shaft - example SNT h5 576 NB CENTER-LINED TAPPED A larger diameter shaft can overcome problems in maintaining precision functionality when a high or unbalanced load is applied. A combination of the center-lined tapped shaft together with the SA type support rail is ideal in such cases. (see pages F-18,19) The center-lined tapped shaft is standardized to simplify shaft selection. example SNSB 576 SNT type outer diameter(d) length(l) outer diameter tolerance g6 when blank material SNB: SUJ SNSB: equivalent to SUS440C length(l) outer diameter(d) g6 when blank outer diameter inner D tolerance diameter g6 d μm SNT 6 6 4/ 1 SNT SNT 14 4 SNT SNT SNT SNT SNT 15 0 SNT SNT SNT SNT 6 SNT SNT 80 SNT / material: high-carbon chromium bearing steel (SUJ) hardness: HRC (HV697) or more Tolerances other than g6 are available upon request. length L mass Kg/m NB Center-Lined Tapped Shaft outer diameter pitch D tolerance g6* P μm SNB 5/ 14 SNB1 1 6 SNB SNB SNB SNB 00 0 SNB SNB SNB SNB 300 screw M M4 M4 M4 M5 M6 M6 M8 M8 M8 M tap depth f material: high-carbon chromium bearing steel (SUJ) hardness: HRC (HV697) or more *g6 is a standard tolerance of the outer diameter. maximum length Lmax 4.5 1, ,800 6, , , , ,0 15 5, ,000 6,000 NB Center-Lined Tapped Stainless Steel Shaft outer diameter pitch screw tap maximum D tolerance depth length g6* P M f Lmax μm SNSB / 17 1 M5 7,000 SNSB0 0 1 M6 9 3,000 7 SNSB 00 M6 1 4,000 0 SNSB M8 15 4,0 SNSB M8 15 5,000 9 SNSB M8 18 6,000 SNSB 300 M 6,000 material: martensite stainless steel (equivalent to SUS440C) hardness: 56HRC (HV613) or more *g6 is a standard tolerance of the outer diameter. F-8 F-9
6 SUPPORTER AND SUPPORT RAIL These components save design/assembling time and ease shaft installation. SH-A TYPE - Shaft Supporter - SH-A type SH SH-A WH-A type These are most coonly used compact shaft supporters. SH type is made of cast iron and SH-A/WH-A type is made of aluminum alloy. SH type WH-A type P.F-11 P.F-1 example SH A SH-A type SHF SHF-FC type These are flanged type shaft supporters for a compact design. SHF is made of aluminum alloy and SHF-FC (shaft diameter 35 and over) is made of cast iron. SHF type SHF-FC type SA type P.F-16 P.F-13 E 0.05 P shaft diameter SA WA LWA type (shaft support rail) These support rails support shafts from below to avoid shaft deflection for a long-stroke/high load application. This type is made of aluminum alloy. ACCURACY OF SA TYPE SUPPORT RAIL The accuracy of the SA support rails are measured as shown in Figure F-1. Figure F-1 Measurement Method Figure F- Accuracy of SA type Support Rail μm C 0 A B parallelism of surface C to surface B 15 5 WA type LWA type P.F-14 P.F-18 P.F support rail length SH 8A SHA SH1A SH13A SH16A SH0A SHA SH30A SH35A SH40A SHA SHA G shaft diameter S h E B W W h 0.0 F NB mark major dimensions L F G P B L S 5.5 (M5) 5.5 (M5) 5.5 (M5) 5.5 (M5) 5.5 (M5) 6.6 (M6) 6.6 (M6) 9 (M8) 11 (M) 11 (M) 14 (M1) 14 (M1) tightening screw mass recoended torque N m g M4 4 M4 4 M4 30 M4 30 M4 40 M M M M M M1 9 7 M1 9 1, F- F-11
7 SH TYPE - Shaft Supporter - SHF TYPE - Shaft Supporter Flange Type - example SH example SHF 35 FC SHF type SH type shaft diameter shaft diameter blank: aluminum alloy FC: cast iron SH SH13 SH16 SH0 SH SH30 SH35 SH40 SH SH shaft diameter h E W major dimensions L F G P B S 4.5 (M4) 7 (M5) 7 (M5) 8 (M6) 8 (M6) (M8) 1 (M) 1 (M) 14 (M1) 14 (M1) tightening screw mass recoended torque N m g M4 80 M4 M4 M M M M M 9 1,00 M1 9 1,700 M1 9,0 aluminum alloy cast iron SHF SHF1 SHF13 SHF16 SHF0 SHF SHF30 SHF35 SHF35FC SHF40 SHF40FC SHF SHFFC SHF SHFFC shaft diameter W L major dimensions T F G B S 5.5 (M5) 5.5 (M5) 5.5 (M5) 5.5 (M5) 7 (M6) 7 (M6) 9 (M8) 1 (M) 1 (M) 14 (M1) 14 (M1) tightening screw mass recoended torque g N m aluminum alloy cast iron M4 13 M4 0 M4 0 M4 7 M M5 3 M M M M M ,0 F-1 F-13
8 major dimensions SA-00 SA-300 SA-400 SA-0 SA-0 SA13-00 SA SA SA13-0 SA13-0 SA16-00 SA SA SA16-0 SA16-0 SA0-00 SA0-300 SA0-400 SA0-0 SA0-0 SA-00 SA-300 SA-400 SA-0 SA-0 mass g shaft diameter W L T F K h1 θ SA TYPE - Shaft Support Rail - SA type SA 0 shaft diameter total length - example H E J B N M P S1 S M4 M4 M5 M6 M major dimensions SA30-00 SA SA SA30-0 SA30-0 SA35-00 SA SA SA35-0 SA35-0 SA40-00 SA SA SA40-0 SA40-0 SA-00 SA-300 SA-400 SA-0 SA-0 mass g shaft diameter W L T F K h1 θ H E J B N M P S1 S M8 M8 M8 M , ,190 1, ,90 1,6 1,9 1,000 1,0,000,0 3,000 Mounting screws for the SN(S)B center-lined tapped shaft are included. F-14 F-15
9 WH-A TYPE - Shaft Supporter - (Inch Standard) example WH 4 A WH-A type WH 4A WH 6A WH 8A WH A WH 1A WH 16A WH 0A WH 4A WH 3A shaft diameter h ± E ± major dimensions W L F G P major dimensions B ± S bolt# # 6 # 6 # 8 # # 1/4 5/16 5/16 3/8 mass lbs WH 4A WH 6A WH 8A WH A WH 1A WH 16A WH 0A WH 4A WH 3A 1kg.05lbs 1lb 0.454kg F-16 F-17
10 WA TYPE - Shaft Support Rail - (Inch Standard) LWA TYPE - Low Shaft Support Rail - (Inch Standard) example WA 4-4 PD example LWA 4-48 PD WA type pre-drilled LWA type pre-drilled length length shaft part diameter number 4PD WA PD 4PD WA-.6 48PD 4PD WA PD 4PD WA PD 4PD WA PD 4PD WA PD 4PD WA PD H ± major dimensions W F T K E ± All s are also available without pre-drilled mounting holes. Complete shaft-rail assemblies are also available as well as custom drilling and lengths. Please send drawings with customer specifications J h1 B ± mounting dimensions N M P S1 hole bolt# #6 #8 # 1/4 5/16 5/16 3/8 hole S bolt# #6 #8 # 1/4 5/16 3/8 1/ mass lbs kg.05lbs 1lb 0.454kg shaft diameter LWA 8-48 PD.00 LWA -48 PD.6 LWA 1-48 PD.70 LWA PD LWA 0-48 PD 1.0 LWA 4-48 PD 1.00 LWA 3-48 PD.0000 H ± major dimensions W F N mounting dimensions M P h S mass lb kg.05lbs 1lb 0.454kg F-18 F-19
11 WSS TYPE - Shaft Support Assembly - (Standard Type) WSS-SS TYPE - Shaft Support Assembly - (Stainless Steel Type) example WSS example WSS SS outer diameter length outer diameter length Part Number WSS 8 WSS WSS 1 WSS 16 WSS 0 WSS 4 WSS 3 Outer Outer Assembly Dimensions Base Mouting Holes Diameter A W1 W N P / / / / / / 1/ / / / / Maximum Length Weight lbs/ft kg/m Part Number WSS 8-SS WSS -SS WSS 1-SS WSS 16-SS WSS 0-SS WSS 4-SS WSS 3-SS Outer Outer Assembly Dimensions Base Mouting Holes Weight Maximum Diameter A W1 W N P lbs/ft Length / / / / / / kg/m 1/ / / / / F-0 F-1
12 SF TYPE - NBCA Shaft - SFS TYPE - NBCA Stainless Steel Shaft - example SF 576 example SFS 576 SF type length(l) SFS type length(l) outer diameter(d) outer diameter(d) outer diameter length D tolerance L g6 μm SF SF SF SF 1 SF SF SF SF SF SF 30 SF 35 SF 40 SF material: CF53 or Equivalent hardness: HRC (HV697) or more mass Kg/m outer diameter D tolerance g6 μm SFS 6 6 SFS 8 8 SFS SFS 1 SFS 13 SFS 16 SFS 0 SFS SFS 30 SFS 35 SFS 40 SFS material: X46Cr13 or Equivalent hardness: 5HRC (HV544) or more length L mass Kg/m F- F-3
13 SFW TYPE - NBCA Inch Shaft - SFWS TYPE - NBCA Inch Stainless Steel Shaft - example SFW example SFWS SFW type length(l) SFWS type length(l) Part Number Outer Diameter Length Mass D g6 L lbs/ / /μm / kg/m SFW 4 1/ SFW 6 3/ SFW 8 1/ ー SFW 5/8 ー ー SFW 1 3/ ー SFW SFW 0 1-1/ SFW 4 1-1/ ー.0006 ー ー 15 ー SFW 3 ー.0006 ー ー 15 ー material: CF53 or Equivalent 1kg.05lbs hardness: HRC or more Outer Diameter Length Mass Part Number D g6 L lbs/ / /μm / kg/m SFWS 1/8 ー.000 ー ー 5 ー SFWS 3 3/16 ー.000 ー ー 5 ー SFWS 4 1/ SFWS 6 3/ SFWS 8 1/ ー SFWS 5/8 ー ー SFWS 1 3/ ー SFWS SFWS 0 1-1/ SFWS 4 1-1/ ー.0006 ー ー 15 ー SFWS 3 ー.0006 ー ー 15 ー material: X46Cr13 or Equivalent 1kg.05lbs hardness: 5 HRC or more F-4 F-
14 SFW-PD - NBCA Inch Pre-Drilled Shaft - SFWS-PD - NBCA Inch Pre-Drilled Stainless Steel Shaft - example SFW PD example SFWS PD SFW type pre-drilled shaft SFWS type pre-drilled shaft length(l in es) length(l in es) Outer Diameter Pitch Tapped Hole Maximum Part Number Bolt Size Depth Length D P M Dp L / /μm / / / SFW 8-PD 1/ ー # ー SFW -PD 5/8 ー # ー SFW 1-PD 3/ # ー SFW 16-PD 1 ー / ー SFW 0-PD 1-1/4 ー / SFW 4-PD 1-1/ ー / ー SFW 3-PD ー / ー material: CF53 or Equivalent 1kg.05lbs hardness: HRC or more Outer Diameter Pitch Tapped Hole Maximum Part Number Bolt Size Depth Length D P M Dp L / /μm / / / SFWS 8-PD 1/ ー # ー SFWS -PD 5/8 ー # ー SFWS 1-PD 3/ # ー SFWS 16-PD 1 ー / ー SFWS 0-PD 1-1/4 ー / SFWS 4-PD 1-1/ ー / ー SFWS 3-PD ー / ー material: X46Cr13 or Equivalent 1kg.05lbs hardness: 5 HRC or more F-6 F-7
15 SFW-FS/SFWS-FS TYPE - Format Single End Tapped Inch Shaft - SFW-FS3/SFWS-FS3 TYPE - Format Both Ends Tapped Inch Shaft - example SFW FS example SFWS FS3 material SFW: CF53 or Equivalent SFWS: X46Cr13 or Equivalent FS-Single End Tapped length(l in es) material SFW: CF53 or Equivalent SFWS: X46Cr13 or Equivalent FS3-Both Ends Tapped length(l in es) Part Number Outer Diameter Tap Size Tap Depth Length SFW SFWS D M B in / /μm SFW 4-FS 1/ # " SFW 6-FS SFWS 6-FS 3/8 # " * 9 * * / SFW 8-FS SFWS 8-FS 1/ " * 9 * * /8 ー.0005 SFW -FS SFWS -FS 1/ " * 9 * * ー /4 ー 13 SFW 1-FS SFWS 1-FS 5/ " * 9 * * ー SFW 16-FS SFWS 16-FS 3/ " * 9 * * * 9 * * SFW 0-FS SFWS 0-FS 1-1/4 1/ " SFW 4-FS SFWS 4-FS 1-1/ / " hardness of SFW: HRC or more hardness of SFWS: 5 HRC or more SFWS is not available * F-8 Part Number Outer Diameter Tap Size Tap Depth Length SFW SFWS D M B in / /μm SFW 4-FS3 1/ # " SFW 6-FS3 SFWS 6-FS3 3/8 # " * 9 * * / SFW 8-FS3 SFWS 8-FS3 1/ " * 9 * * /8 ー.0005 SFW -FS3 SFWS -FS3 1/ " * 9 * * ー /4 ー 13 SFW 1-FS3 SFWS 1-FS3 5/ " * 9 * * ー SFW 16-FS3 SFWS 16-FS3 3/ " * 9 * * * 9 * * SFW 0-FS3 SFWS 0-FS3 1-1/4 1/ " SFW 4-FS3 SFWS 4-FS3 1-1/ / " hardness of SFW: HRC or more hardness of SFWS: 5 HRC or more SFWS is not available * F-9
16 SFW-FS115 TYPE - Format Single End Threaded Inch Shafts - SFW-FS116 TYPE - Format Both Ends Threaded Inch Shafts - example SFW FS115 example SFW FS116 FS115- Single End Threaded length(l in es) FS116- Both End Threaded length(l in es) Outer Diameter Thread Thread Journal Journal 4" Travel 6" Travel 8" Travel 1" Travel 4" Travel 36" Travel 48" Travel Part Number Size Length Length DIA G G G G G G G D M B F P Length L Length L Length L Length L Length L Length L Length L / /μm / / / / / / / / / / SFW 6-FS115 3/8 1/ SFW 8-FS115 1/ 5/ SFW -FS115 5/8 ー / ー SFW 1-FS115 3/4 ー 13 1/ ー SFW 16-FS / SFW 0-FS /4 3/ SFW 4-FS / ー.0006 ー ー 15 ー material: CF53 or Equivalent hardness: HRC or more stainless steel s are available on this series by quote only F-30 Outer Diameter Thread Thread Journal Journal 4" Travel 6" Travel 8" Travel 1" Travel 4" Travel 36" Travel 48" Travel Part Number Size Length Length DIA G G G G G G G D M B F P Length L Length L Length L Length L Length L Length L Length L / /μm / / / / / / / / / / SFW 6-FS116 3/8 1/ SFW 8-FS116 1/ 5/ SFW -FS116 5/8 ー / ー SFW 1-FS116 3/4 ー 13 1/ ー SFW 16-FS / SFW 0-FS /4 3/ SFW 4-FS / ー.0006 ー ー 15 ー material: CF53 or Equivalent hardness: HRC or more stainless steel s are available on this series by quote only F-31
17 PC TYPE - Pre-Cut Slide Shafts - PC type example PC 16-4 length(l in es) FIT SERIES Due to the combined tolerances of the bush's bore and the shaft's diameter, accuracy can be affected by clearance or increased dynamic friction caused by preloading. NB's FIT Series takes advantages of the lower cost slide bush and the precision ground shaft to achieve a target clearance in order for the linear system to produce a smooth, high-accuracy performance. example F- SMSGUU 1 / SNS 5 FIT series shaft slide bush number of slide bush on one shaft Please refer to corresponding catalog pages for details. Please specify on the drawing about the shaft machining, radial clearance, match-marking, etc. Recoended Radial Clearance Depending on the type of application, the clearance range varies, please use the chart below as a guideline. target clearance(+) 0 clearance(-) light motion high accuracy no play Slide Bush, Radial Clearance(-), Negative Limit Negative clearance is opted to reduce backlash. Please refer to the chart below for the negative clearance limits radial clearance limit -3μm -4μm -6μm -8μm -μm -13μm The off-center of the housing causes uneven loading on the slide bush, please pay special attention to the centering of the housing especially when negative clearance is a requirement. Please contact NB for details on the extra preloading requirement or on other s like SRE, SR, etc. Part Number PC 4 PC 6 PC 8 PC PC 1 PC 16 PC 0 PC 4 Outer Diameter Length Mass L D g6 lbs/ / /μm kg/m 1/ / / ー /8 ー ー /4 ー / / ー.0006 ー ー 15 ー material: CF53 or Equivalent hardness: HRC or more F-3 Figure F-3 Radial Clearance between Slide Bush and Shaft Magnified View Preload Riht-Fit Clearance Big Small F-33
18 SPINDLE & SPINDLE UNIT NB Spindle Shaft is backed by decades of precision manufacturing experience as well as up to date manufacturing facility to meet demands. NB is capable of handling all your spindle needs such as manufacturing of bearing case and spindle base, design and manufacturing of spindle unit, and overhauling of spindles. ADVANTAGES Spindle Unit NB provides overhauling, engineering services as well as manufacturing of spindle unit. Ultra Precision Machining Spindle manufacturing facility is controlled to a constant temperature throughout the year for precision manufacturing of spindles. Various Machining Solution Available BT, BBT, HSK inner tapers, gauge and bearing matching, thread grinding, and many other spindle related machining are available. Surface Treatments Various surface treatments are available such as hard chrome and ceramic coating. Repairing a damaged spindle with replating and grinding is also available. NB SPINDLE UNIT M-BT TYPE Available for various kinds of tool holder M-BT type is available not only BT but also BBT and HSK. customization is available high-speed rotation and high rigidity are possible. F-34 M-BT type dimension table 6-mounting hole (equally spaced) e e b S depth f (hanging hole) P.C.D. k j 7/4 taper D1 D d1 d Drain hole (set screw) F(From the end) L (L3) L4 X 1 L5 L1 (L) t A h cross section A-A A d L11 L6 L7 L8 d3 M D NT ST (L) L9 major dimension part D D1 D d d1 d d3 L L1 L L3 L4 L5 L6 L7 L8 number tolerance tolerance M-BT M-BT M-BT major dimension part L9 L L11 P.C.D X Y Z S f e b j k M t number tolerance tolerance tolerance M-BT M M M-BT M M M-BT M M part number M-BT30 4 major unclamp without tool clamping mass maximum bearing rotational accuracy dimension stroke tool force revolutions h st NT (theoretical value) runout of tapered portion (max) runout of test bar (max) F front rear tolerance tolerance 1 3 N kg rpm μ m μ m μ m ~ C NN M-BT ~ C NN M-BT ~ C NN In this drawing, position of drawbar is illustrated when it is on tool clamp. F-35
19 EXAMPLE OF DRAWING 1 EXAMPLE OF SPINDLE UNIT DESIGN AND MACHINING Spindle EXAMPLES OF MACHINING Example of spindle unit specification Machine used Machining center Mounting orientation Vertical Rotational Speed Max.,000 rpm (Max. 700 rpm without tooling attached) Spindle taper 30 Lubrication methods Grease lubrication Lubricant ISOFLEX NBU15 (NOK Corporation) Tool clamping power 400 kgf (theoretical) Estimated drive power 3.5kW Estimated weight 31kg F-36 F-37
20 EXAMPLE OF DRAWING EXAMPLE OF DRAWING 3 F-38 F-39
21 GENERAL MACHINE ING NB general machine shafts are made to customer drawings. Integrated production from material sourcing, machining, heat treatments, surface treatments and final inspection, NB does it all. Roll Shaft EXAMPLES OF MACHINING 1 ADVANTAGES Small Lot Production Accepted One piece custom accepted. Variety of Machining Capabilities From small to large, various shaft and spindle machining is available. Surface Treatment Various surface treatments are available such as hard chrome, electroless nickel plating, and low temperature black chrome. Heat Treatment Various heat treatments are available such as carburizing and induction hardening. THERMAL-SPRAYING CERAMIC-COATING SPECIFICATIONS Parts that require wear and corrosion resistance can be thermal-sprayed with a ceramic material per NB's ceramic-coating specifications. Ceramic-coating can be applied to a wide variety of materials. The pores in the coated layer result in good lubrication characteristics and can be sealed to achieve high corrosion resistance. Quill Shaft High Carbon Chromium Bearing Steel (SUJ) Chrome Molybdenum Steel (JIS SCM415, 40, 435) Structural Carbon Steel (JIS S45C) Materials Martensite Stainless Steel (SUS440) Austenite Stainless Steel (SUS303, 304) Tool Steel (JIS SK4) Tool Steel (JIS SKS3) Induction Hardening Heat Induction Hardening (deep) Treatment Carburizing and quenching Hard Chrome Surface Low Temperature Black Chrome Treatment Electroless Nickel Plating Thermal Spray Ceramic Coating Gauging with customer supplied nuts and bearings Others Triangular and trapezoidal thread grinding available Process Details / Manufacturing Contents Maximum Machinable Diameter Maximum Machinable Length Remarks / Notes Centerless Grinding φ outer diameter 4000 External Grinder φ640 outer diameter 00 Internal Grinder φ00 inner diameter 300 Allowable work length: up to 1 Machining Ability Vertical Grinder φ3 inner diameter φ630 outer diameter Lathe φ Horizontal Machining Center φ3 000 Up to 3000 kg Vertical Machining Center BT / Gun Drilling φ300 φ Up to 3000 kg Up to 4000 long with both end machining for less than φ Up to 000 long for φ and over F-40 F-41
22 EXAMPLES OF MACHINING SLIDE WAY SLIDE TABLE MINIATURE SLIDE GONIO WAY SLIDE WAY STRUCTURE AND ADVANTAGES G- TYPES G-3 ACCURACY G-4 RATED LIFE G-4 LOAD RATING G-4 STROKE G-6 LUBRICATION AND DUST PREVENTION G-6 MOUNTING G-6 INSTALLATION PROCEDURE OF NV TYPE G-7 INSTALLATION PROCEDURE OF SV TYPE G-8 SPECIAL MOUNTING SCREW BT TYPE G-9 USE AND HANDLING PRECAUTIONS G-9 DIMENSION TABLE G- SLIDE TABLE STRUCTURE AND ADVANTAGES G-6 TYPES G-7 ACCURACY G-7 RATED LIFE G-8 LOAD RATING G-8 USE AND HANDLING PRECAUTIONS G-8 SPECIAL REQUIREMENTS G-9 DIMENSION TABLE G-30 MINIATURE SLIDE STRUCTURE AND ADVANTAGES G-5 ACCURACY G-53 LOAD RATING G-53 RATED LIFE G-53 MOUNTING G-54 USE AND HANDLING PRECAUTIONS G-55 DIMENSION TABLE G-56 GONIO WAY STRUCTURE AND ADVANTAGES G-58 ACCURACY OF RVF TYPE G-59 ACCURACY OF RV TYPE G-59 RATED LIFE G-59 MOUNTING OF RVF TYPE G- MOUNTING OF RV TYPE G-6 RVF TYPE AXES AND SPECIAL REQUIREMENTS G-64 USE AND HANDLING PRECAUTIONS G-65 DIMENSION TABLE G-66 SLIDE WAY Please visit at NB Website for more examples of machining. F-4 G-1
SLIDE SHAFT PRODUCTS. 777 Schwab Road, Suite T, Hatfield, PA Toll Free: Fax:
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