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1 P R O D U C T C A T A L O G

2 If a chuck s a chuck, then Why a Buck! Depth. In Experience. In Heritage. In Product. How about 75 years? That s how long Buck Chuck Company has engineered and built some of the finest chucks in the world. Buck Chuck brings the depth of one of the world s most recognized workholding companies. Our most recent lines the ATSC and BVC Ajust-Tru self-centering manual scroll chucks and Super-Life chucks. That s why a Buck. Service. Buck Chuck Company has a dedicated team of customer service personnel and sales representatives that have the technical knowledge to help make your Buck experience as hassle-free as possible. We also work closely with some of the most-recognized industrial products distributors to provide you with the proper solution to any of your chuck needs. It s a commitment we make to each and every one of our customers. That s why a Buck. Price to performance. You can buy the cheapest chuck out there and here s what you ll get. You ll get cheap. A chuck that s not as repeatable or as accurate as you need. A chuck that takes too much of your machine operator s time to adjust and true. A chuck that isn t productive. It s the cost of that lost productivity that you need to consider. But not with Buck Chuck. You ll get the most accurate and repeatable chucks on the market. That s why a Buck. Parts & Accessories. Not only does Buck Chuck Company provide the benchmark in manual chucks, we also offer power chucks and precision chucks. Our chucks come in a variety of sizes and styles and are ideal for replacement of OEM manual and power chucks. We also offer hard and soft jaws and wear parts. Whatever the workholding need, Buck can help. That s why a Buck. 2

3 Table of Contents ATSC Manual Scroll Chucks Ajust-Tru Style Page Replacing Your Obsolete Buck Chuck - Crossover Sheet and 6 Jaw Forged Steel Scroll Chuck Hardened Top Reversible Jaw and 6 Jaw Forged Steel Scroll Chuck Hardened Solid Jaw Jaw Forged Steel Scroll Chuck Hardened Top Reversible Jaw...7 5C Adapted 3, 4 or 6 Jaw Forged Steel Scroll Chuck Hardened Top Reversible or Solid Jaw...7 ATSC Mounting Plates Spindle Identification...10 BVC Manual Scroll Chucks Ajust-Tru Style 3 and 6 Jaw Semi-Steel Scroll Chuck Hardened Top Reversible Jaw...11 BVC Mounting Plates...12 Spare Parts Replacement Parts and Accessories...13 Mini Chucks 3 Jaw Manually Operated Low Profile Chuck Solid Reversible Jaws Jaw Semi-Steel Scroll Chuck Solid Jaws...14 Extra Heavy Duty Oil Country Chucks 3 Jaw Scroll Chuck Hardened Top Reversible Jaw Jaw Independent Chuck Hardened Top Reversible Jaw...16 Power Chucks Power Chuck Selection Guide Jaw High-Speed Thru-Hole Draw Tube Operated Power Chuck Jaw High-Speed Thru-Hole Draw Tube Operated Power Chuck Jaw High Speed Closed Center Draw Bar Operated Power Chuck Jaw High Speed Closed Center Draw Bar Operated Power Chuck Jaw Super Precision Air Operated Power Chuck Jaw Stationary Self Contained Closed Center Power Chuck Jaw Hydraulic Super Life Power Chuck...24 Super Life 2/3 Jaw Combination Power Chuck...25 Power Chuck Accessories...26 Buck Forkardt Quick Change Chucks Model FNC Power Chuck...27 Model F+ Manual Chuck

4 Obsolete Chuck Crossover 4 AT+ MODELS AT+ Model # AT+ Part # ATSC Part # A B C 3AT+4 A B8043S 6AT+4 A B8046S 3AT+5 A B8053S 6AT+5 A B8056S 3AT+6 A B8063S 6AT+6 A B8066S 3AT+6R A B8063 6AT+6R A B8066 3AT+8 A B8083S 6AT+8 A B8086S 3AT+8R A B8083 6AT+8R A B8086 3AT+10 A B8103S 6AT+10 A B8106S 3AT+10R A B8103 6AT+10R A B8106 3AT+12 A B8123S 6AT+12 A B8126S 3AT+12R A B8123 6AT+12R A B8126 3AT+15R A B8153 6AT+15R A B8156 AT MODEL CHUCKS The chart to the right refers to the replacement options for the obsolete AT model of chucks. The BVC was designed as a replacement for this chuck - the components are not interchangeable, but the BVC can be mounted to the existing adapter plate from your AT chuck. If you currently have an AT with any of the numbers in column A, B or C, it is replaced by a chuck in column D. The chucks that have ** in column D do not have a direct replacement, but there are alternate replacement options available that may not require you to purchase a new adapter plate. Please contact us at BUCK for more information. AT+ MODEL CHUCKS The chart to the left refers to the replacement options for the obsolete AT+ model of chucks. The ATSC was designed as a replacement for this chuck - the components are not interchangeable, but the ATSC can be mounted to the existing adapter plate from your AT+ chuck. If you currently have an AT+ with any of the numbers in column A or B, it is replaced by a chuck in column C. Please contact us at BUCK for more information. AT MODELS AT Model # AT Serial # AT Part # BVC Part # A B C D 3AT4 A ** 6AT4 A ** 3AT5 A ** 6AT5 A ** 3AT6 A ** 6AT6 A ** 3AT6R A R B2063R 6AT6R A R B2066R 3AT8 A ** 6AT8 A ** 3AT8R A R B2083R 6AT8R A R B2086R 3AT10 A ** 6AT10 A ** 3AT10R A R B2103R 6AT10R A R B2106R 3AT12 A ** 6AT12 A ** 3AT12R A R B2124R 6AT12R A R B2127R 3AT15R A R B2154R 6AT15R A R **

5 Forged Steel Body Scroll Chuck Model ATSC Hardened Top Reversible Jaws FEATURES & BENEFITS: 4 micro-fine adjustment screws allow.0005 TIR repeatability High quality forged steel body construction allows for higher lathe speeds Hardened and ground scroll is precision balanced allowing longer life and greater accuracy Hardened jaws and pinions increase life of the chuck American Standard Tongue & Groove Master Jaws allow for greater flexibility in choice of top tooling CHUCK SHIPS COMPLETE WITH: Master and hardened top reversible jaws Spring loaded T-wrench Allen wrench Mounting bolts * 3-JAW ATSC W/MASTER & HARDENED TOP REVERSIBLE JAWS Gripping Dia. (mm) Max Wt. Dia. Part No. A B C D E F G H J K L M N EXT. INT. RPM Lbs. 6" B (3)M10x1.5P (4)M10x1.5P " B (3)M10x1.5P (4)M10x1.5P " B (3)M12x1.75P (4)M10x1.5P " B (3)M16x2P (4)M12x1.75P " B (3)M16x2P (4)M12x1.75P JAW ATSC W/MASTER & HARDENED TOP REVERSIBLE JAWS Dia. Part No. A B C D E F G H J K L M N Gripping Dia. (mm) Max Wt. EXT. INT. RPM Lbs. * 6" B (3)M10x1.5P (4)M10x1.5P " B (3)M10x1.5P (4)M10x1.5P " B (3)M12x1.75P (4)M10x1.5P " B (3)M16x2P (4)M12x1.75P " B (3)M16x2P (4)M12x1.75P *6 chuck jaws are not ANSI standard - please contact us for details. 5

6 Forged Steel Body Scroll Chuck Model ATSC Hardened Solid Jaws FEATURES & BENEFITS: 4 micro-fine adjustment screws allow.0005 TIR repeatability High quality forged steel body construction allows for higher lathe speeds Hardened and ground scroll is precision balanced allowing longer life and greater accuracy Hardened jaws and pinions increase life of the chuck Hardened solid jaws allow for smaller gripping ranges as opposed to 2 piece jaw chucks CHUCK SHIPS COMPLETE WITH: Inside and outside gripping solid jaws Spring loaded T-wrench Allen wrench Mounting bolts 3-JAW ATSC W/INSIDE & OUTSIDE SOLID JAWS Gripping Dia. (mm) Max Wt. Dia. Part No. A B C D E F G H J K L M N EXT. INT. RPM Lbs. 4" B8043S (3)M5x0.8P (4)M8x1.25P " B8053S (3)M8x1.25P (4)M8x1.25P " B8063S (3)M10x1.5P (4)M10x1.5P " B8083S (3)M10x1.5P (4)M10x1.5P " B8103S (3)M12x1.75P (4)M10x1.5P " B8123S (3)M16x2P (4)M12x1.75P JAW ATSC W/INSIDE & OUTSIDE SOLID JAWS Gripping Dia. (mm) Max Wt. Dia. Part No. A B C D E F G H J K L M N EXT. INT. RPM Lbs. 4" B8046S (3)M5x0.8P (4)M8x1.25P " B8056S (3)M8x1.25P (4)M8x1.25P " B8066S (3)M10x1.5P (4)M10x1.5P " B8086S (3)M10x1.5P (4)M10x1.5P " B8106S (3)M12x1.75P (4)M10x1.5P " B8126S (3)M16x2P (4)M12x1.75P

7 Forged Steel Body Scroll Chuck Model ATSC Hardened Top Reversible Jaws FEATURES & BENEFITS: 4 micro-fine adjustment screws allow.0005 TIR repeatability High quality forged steel body construction allows for higher lathe speeds Hardened and ground scroll is precision balanced allowing longer life and greater accuracy Hardened jaws and pinions increase life of the chuck American Standard Tongue & Groove Master Jaws allow for greater flexibility in choice of top tooling CHUCK SHIPS COMPLETE WITH: Master and hardened top reversible jaws Spring loaded T-wrench Allen wrench Mounting bolts **Please note that this is a SCROLL chuck - all jaws move together - NOT independently 4-JAW ATSC W/MASTER & HARDENED TOP REVERSIBLE JAWS Gripping Dia. (mm) Max Wt. Dia. Part No. A B C D E F G H J K L M N EXT. INT. RPM Lbs. 6" B (3)M10x1.5P (4)M10x1.5P " B (3)M10x1.5P (4)M10x1.5P " B (3)M12x1.75P (4)M10x1.5P " B (3)M16x2P (4)M12x1.75P FEATURES & BENEFITS: 4 micro-fine adjustment screws allow.0005 TIR repeatability High quality forged steel body construction allows for higher lathe speeds Hardened and ground scroll is precision balanced allowing longer life and greater accuracy Hardened jaws and pinions increase life of the chuck Used in tail stocks for jobs where centers cannot be used Adapter does not rotate 3/6-JAW Part # Jaw Style Chuck Dia. (in) CHUCK SHIPS COMPLETE WITH: Jaws 5C adapter Spring loaded T-wrench Allen wrench Mounting bolts 5C ADAPTED AJUST-TRU CHUCKS Chuck Body Height (in) Grip Range (min-max) Shank Flange (in) Adapter Hole Dia (in) Adapter Length (in) B8043S-5C Solid 3 Jaw mm-75mm 5C /4-20 B8053S-5C Solid 3 Jaw mm-95mm 5C /4-20 B8063S-5C Solid 3 Jaw mm-145mm 5C /4-20 B8046S-5C Solid 6 Jaw mm-75mm 5C /4-20 B8056S-5C Solid 6 Jaw mm-95mm 5C /4-20 B8066S-5C Solid 6 Jaw mm-145mm 5C /4-20 B8063-5C 2 pc 3 Jaw mm-150mm 5C /4-20 B8066-5C 2 pc 6 Jaw mm-145mm 5C /4-20 B8064-5C 2 pc 6 Jaw mm-145mm 5C /4-20 **Chuck dimensions can be found on pages 5, 6 and 7. Thread 7

8 ATSC Scroll Chuck Mounting Plates Adapt to all 3, 6 & 4 Jaw ATSC Models Spindle Size AMERICAN STANDARD STYLE A1 & A2 Chuck Size A4-A3 A5-A3 A6-A A5-A4 A6-A4 A8-A A6-A5 A8-A5 A10-A A6-A6 A8-A6 A10-A6 A12-A A6-A8 A8-A8 A10-A8 A12-A8 A15-A A12-A11 A15-A11 Spindle Size AMERICAN STANDARD STYLE D1 CAMLOCK Chuck Size A4-D3 A5-D3 A6-D A5-D4 A6-D4 A8-D A6-D5 A8-D5 A10-D A6-D6 A8-D6 A10-D6 A12-D A6-D8 A8-D8 A10-D8 A12-D8 A15-D A12-D11 A15-D11 HARDINGE 4 DEGREE TAPER MOUNTING PLATES Chuck Size 5 6 Id # A5-4DEG A6-4DEG Mounting Plates for Hardinge Lathes HARDINGE 2 3/16"-10 THREADED MOUNTING PLATES Chuck Size 5 6 Id # A A See Spindle Identification on page 10 to determine the correct mounting plate needed.

9 ATSC Scroll Chuck Mounting Plates Adapt to all 3, 6 & 4 Jaw ATSC Models Spindle Size AMERICAN STANDARD LONG TAPER STYLE L Chuck Size L-00 A6-L00 A8-L00 A10-L L-0 A6-L0 A8-L0 A10-L0 A12-L0 - L-1 - A8-L1 A10-L1 A12-L1 A15-L1 L A12-L2 A15-L2 L A15-L3 Spindle Size THREADED MOUNTING PLATES Chuck Size "-8 A A "-10 A A /2"-8 A A A /4"-8 A A A /4"-8 A A A /8"-6 A A A A /4"-8 A A A SEMI-FINISHED MOUNTING PLATES Chuck Size Part # SMF-04 SMF-05 SMF-06 SMF-08 SMF-10 SMF-12 SMF-15 A(in) A1(in) A2(in) B(in) D(in) D1(in) D2(in) G M8x1.25 M8x1.25 M10x1.50 M10x1.50 M12x1.75 M16x2.00 M16x2.00 L(in) C MOUNTING PLATES Chuck Size Shank Flange Hole dia. Length Thread 4 5C / C / C /4-20 See Spindle Identification on page 10 to determine the correct mounting plate needed. 9

10 Spindle Identification For Mounting Plates SPINDLE TYPE A 1 & A 2 Spindle nose A B C (MAX) E1 & E2 F1 F2 "E1" "C" A / "E2" A / A / "F2" A / "F1" "B" "A" A / A / A '30" A / KEY L SPINDLE TYPE LONG TAPER KEY DRIVE Spindle nose A THREAD B C KEY L00 3-3/ /8 X 3/8 X 1-1/2 L0 4-1/ /8 X 3/8 X 1-3/4 8 17'50" "A" "B" L /8 X 5/8 X 2-3/8 L2 7-3/ /4 X 3/4 X 2-7/8 L3 10-3/ X 1.00 X 3-1/4 "C" THREADED SPINDLE TYPE Spindle nose thread A /2-8 "A" 1-3/ / / /4-8 Spindle nose A D1 CAMLOCK SPINDLE TYPE B C (MAX) CAMSTUD DIA E F "E" "C" D / D / D / "F" D / "B" "A" D D / D / '30"

11 Semi-Steel Body Model BVC Hardened Top Reversible Jaws FEATURES & BENEFITS: 4 micro-fine adjustment screws allow.001 TIR repeatability Semi-steel body allows for a great chuck at a lower price American Standard Tongue and Groove Master Jaws allow for greater flexibility in choice of top tooling G CHUCK SHIPS COMPLETE WITH: Master and hardened top reversible jaws Spring loaded T-wrench Mounting bolts K D E C A F H L J N B G K D E C A F H L J N 3-JAW B BVC W/MASTER & HARDENED TOP REVERSIBLE JAWS Dia. Part No. A B C D* E F G H J K L N Gripping Dia. (mm) 6 B2063R (6) 1/ (4) 1/ B2083R (6) 3/ (4) 3/ B2103R (6) 7/ (4) 3/ B2124R (6) 1/ (4) 3/ B2154R (6) 5/ (4) 3/ EXT. INT. Max RPM Wt. Lbs. 6-JAW *Use Inner Bolt Circle for 10 to 15 Chuck Sizes BVC W/MASTER & HARDENED TOP REVERSIBLE JAWS Dia. Part No. A B C D* E F G H J K L N Gripping Dia. (mm) 6 B2066R (6) 1/ (4) 1/ B2086R (6) 3/ (4) 3/ B2106R (6) 7/ (4) 3/ B2127R (6) 1/ (4) 3/ EXT. INT. Max RPM Wt. Lbs. 11

12 Mounting Plates Model BVC Hardened Top Reversible Jaws AMERICAN STANDARD STYLE A1 & A2 Spindle Size Chuck Size A-3 B6-A3 A-4 B6-A4 B8-A4 A-5 B6-A5 B8-A5 B10-A5 A-6 B6-A6 B8-A6 B10-A6 B12-A6 A-8 B8-A8 B10-A8 B12-A8 B15-A8 A-11 B12-A11 B15-A11 AMERICAN STANDARD STYLE D1 CAMLOCK Spindle Size Chuck Size D-3 B6-D3 D-4 B6-D4 B8-D4 B10-D4 D-5 B6-D5 B8-D5 B10-D5 B12-D5 D-6 B6-D6 B8-D6 B10-D6 B12-D6 D-8 B8-D8 B10-D8 B12-D8 B15-D8 D-11 B12-D11 B15-D11 AMERICAN STANDARD LONG TAPER STYLE L Spindle Size Chuck Size L-0 B6-L0 B8-L0 B10-L0 B12-L0 L-1 B10-L1 B12-L1 B15-L1 L-2 B12-L2 B15-L2 HARDINGE LATHE MOUNTING PLATES Spindle Size Chuck Size 6 2 3/16"-10 B6-2 3/16"-10 4º Taper B6-4 5C MOUNTING PLATE Chuck Size Shank (D) Flange Hole d. Length Thread 6 5C x See Spindle Identification on page 10 to determine the correct mounting plate needed.

13 Manual Scroll Chuck ATSC & BVC Replacement Parts & Accessories Keep your ATSC and BVC Buck Chuck in good repair with original replacement parts. Not compatible with some older Buck Chuck models. CHUCK PARTS Chuck Dia. Pinion Scroll Wrench ATSC BVC ATSC BVC ATSC BVC 4 ATSC-04P ATSC-04S ATSC-04W 5 ATSC-05P ATSC-05S ATSC-05W 6 ATSC-06P BVC-06P ATSC-06S BVC-06S ATSC-06W BVC-06W 8 ATSC-08P BVC-08P ATSC-08S BVC-08S ATSC-08W BVC-08W 10 ATSC-10P BVC-10P ATSC-10S BVC-10S ATSC-10W BVC-10W 12 ATSC-12P BVC-12P ATSC-12S BVC-12S ATSC-12W BVC-12W 15 ATSC-15P BVC-15P ATSC-15S BVC-15S ATSC-15W BVC-15W **Wrenches are spring loaded for operator s safety. Removal of the spring is not recommended and may void chuck warranty. Chuck Dia. 4 3 Jaw 4 6 Jaw 5 3 Jaw 5 6 Jaw 6 3 Jaw 6 6 Jaw 8 3 Jaw 8 6 Jaw 10 3 Jaw 10 6 Jaw 12 3 Jaw 12 6 Jaw 15 3 Jaw 15 6 Jaw JAWS Top Reversible Hard Jaw ID Grip Jaw OD Grip Jaw Master Jaw ATSC BVC ATSC BVC ATSC BVC ATSC BVC A063-HTJ A066-HTJ A083-HTJ A086-HTJ A103-HTJ A106-HTJ A123-HTJ A126-HTJ A153-HTJ A156-HTJ A063-HTJ A066-HTJ A083-HTJ A086-HTJ A103-HTJ A106-HTJ A123-HTJ A126-HTJ A153-HTJ A043-ISJ A046-ISJ A053-ISJ A056-ISJ A063-ISJ A066-ISJ A083-ISJ A086-ISJ A103-ISJ A106-ISJ A123-ISJ A126-ISJ A153-ISJ A156-ISJ A043-OSJ A046-OSJ A053-OSJ A056-OSJ A063-OSJ A066-OSJ A083-OSJ A086-OSJ A103-OSJ A106-OSJ A123-OSJ A126-OSJ A153-OSJ A156-OSJ A043-MJ A046-MJ A053-MJ A056-MJ A063-MJ A066-MJ A083-MJ A086-MJ A103-MJ A106-MJ A123-MJ A126-MJ A153-MJ A156-MJ B063-MJ B066-MJ B083-MJ B086-MJ B103-MJ B106-MJ B123-MJ B126-MJ B153-MJ 13

14 Manually Operated Mini Chucks Solid Reversible Jaws Model VSC - Low Profile Quick Clamping Chucks FEATURES & BENEFITS: Low profile design perfect for tool grinding Keyless & pinionless system allows for faster clamping/unclamping Can be mounted on spindle nose of tool grinders, rotary tables, indexing fixtures, and measuring devices Special adapters available CHUCK SHIPS COMPLETE WITH: 1 Set of reversible solid jaws 1 Wrench VSC 65mm VSC 80mm 3-JAW VSC MANUALLY OPERATED CHUCK Gripping Dia. (mm) Weight Part No. D D1 D2 D3 D4 D5 H H1 h h1 h2 M EXT. INT. Lbs. 2.5 VSC65mm M14x VSC80mm M16x Model BVC-S - Mini Scroll Chuck FEATURES & BENEFITS: Semi-steel body for lower cost option Solid reversible jaws Special compact design allows ability to turn small diameters Mounts to spindle using adapter flange 14 3-JAW CHUCK SHIPS COMPLETE WITH: 1 Wrench 1 Set of inside and outside solid jaws Soft jaws available MINI SCROLL CHUCK - MODEL BVC-S Part No. D D1 D2 D3 H H1 h Z-D B (3) M6

15 Extra Heavy Duty Oil Country Chucks 3 Jaw Scroll Hardened Top Reversible Jaw FEATURES: Solid steel body American Standard Tongue & Groove master jaws 24 Steel Body Chuck Up to a 10.5 Thru-hole capacity featuring.001 TIR repeatability on duplicate parts for the production of oil country goods and similar heavy-duty applications. Master Jaw and Hardened Reversible Top Jaw styling accommodates both internal and external chucking operations. Mountings available for standard or special spindles. Specify spindle details when ordering. 3-JAW OIL COUNTRY 3-JAW SCROLL CHUCK Part No. A B C D E F G H J K RPM Wt. Lbs. 24 VLC2403A /8-11 UNC *Larger sizes available - please contact our sales office at BUCK for more information. 15

16 Extra Heavy Duty Oil Country Chucks 4 Jaw Independent - Hardened Top Reversible jaw FEATURES: Solid steel body American Standard Tongue & Groove master jaws 24 & 32 Steel Body Chucks Master jaw and hardened reversible top jaw styling up to 13 thru hole capacity for large, heavy duty applications. Competitively priced, these chucks provide top quality, serviceability and dependability with a name you can trust for demanding work. *Drawing depicts direct mount version of this chuck. 4-JAW OIL COUNTRY 4-JAW INDEPENDENT CHUCK Part No. A B C D E F, G H J K L M N P R RPM Weight Lbs. 24 IND24R /8-9x IND32R Notes: 24 - direct mount to A conversion plates available plain back - A2-20 adapter in stock - other styles available. 16 *Larger sizes available - please contact our sales office at BUCK for more information.

17 Power Chuck Selection Guide When selecting a new power chuck, it is important that you are aware of all specifications and requirements of your machine. Please complete the worksheet below and fax to or call us at BUCK. CHUCK OUTSIDE DIAMETER SELECTION Inch MM *Chuck outside diameter should be selected in reference to the min-max workpiece diameter (inside or outside) **See chuck clamping ranges on pages 18 to 25 CHUCK TYPE SELECTION Type of Chuck # Jaws Plain Back A Mount Other Mount Page # Open Center 18,19,24 Closed Center 20,21,24 Air Clamping 22 Stationary 23 2/3 Jaw Combination 25 Other Contact sales office *Select the proper type of chuck in reference to the chuck application, machining requirements and workpiece dimensions. LATHE SPINDLE NOSE SELECTION *To determine proper spindle type and size (A and D) refer to page 10. CHUCK WORKING PARAMETER SELECTION Min. Chuck Hole Diameter Workpiece Diameter min-max Workpiece Length min-max Weight of Workpiece min-max Maximum Draw Bar Pull Force Maximum Gripping Force Maximum Machining Speed inch inch inch lbs Lbf/kN Lbf/kN rpm The overall length of the draw tube can be calculated after determining the distance between the face of the cylinder back plate and the face of the lathe spindle nose. THREADED NUT AND DRAW TUBE SELECTION It is important to know the thread of your existing draw tube or draw bar. Compare to the threading of the chuck you are selecting to be sure they match. If not, special draw nuts are offered. 17

18 High Speed Power Chuck Thru-Hole Draw Tube Operated Model OPK 3-Jaw Wedge Type Direct OEM Replacement FEATURES & BENEFITS: High quality alloy steel body allows for higher speeds Sharply increased dynamic gripping force greatly improves work efficiency and safety Interchangeable top tooling with 1.5mm x 60 jaw serration pitch Compact and lightweight, which allows for improved efficiency Direct mounting to fit ASA B5.9 Type A spindle High accuracy and endurance are realized due to improved lubrication system Heat treated alloy steel allows this chuck to achieve high durability CHUCK SHIPS COMPLETE WITH: ASA B5.9 Type A spindle adapter 1 Set of soft top jaws Wrench Dimensions denoted in millimeters unless otherwise specified. MODEL OPK 3-JAW WEDGE TYPE POWER CHUCK Model Spindle A B C D E F G H J K L M Nmax Nmin Omax Omin Pmax Pmin OPK-6 A M OPK-8 A M OPK-10 A M OPK-12 A M OPK-15 A M OPK-18 A M OPK-21 A M OPK-24 A M Model Q R S T Umax V W X Y Z MODEL OPK 3-JAW WEDGE TYPE POWER CHUCK Max. Grip Force (KGF) Max Speed RPM Jaw Stroke (Dia.) (mm) Max Grip (mm) Min Grip (mm) Max Input Force (KGF) Plunger Stroke OPK M55X2 3-M OPK M60X2 3-M OPK M85X2 3-M OPK M100X2 3-M OPK M130X2 3-M OPK M130X2 3-M OPK M155X3 3-M OPK M175X3 3-M *Larger sizes available - please contact our sales office at BUCK for more information. Weight (Kg)

19 High Speed Power Chuck Thru-Hole Draw Tube Operated Model OPTK 2-Jaw Wedge Type Direct OEM Replacement FEATURES & BENEFITS: High quality alloy steel body allows for high speeds Sharply increased dynamic gripping force greatly improves work efficiency and safety Interchangeable top tooling with 1.5mm x 60 jaw serration pitch Compact and lightweight allowing for increased efficiency Direct mounting to fit ASA B5.9 Type A spindle High accuracy and endurance are realized due to improved lubrication system Heat treated alloy steel allows the achievement of high durability CHUCK SHIPS COMPLETE WITH: ASA B5.9 Type A spindle adapter 1 Set of soft top jaws Wrench Dimensions denoted in millimeters unless otherwise specified. MODEL OPTK 2-JAW WEDGE TYPE POWER CHUCK Model Spindle A B C F G H J K L M Nmax Nmin Omax Omin Pmax Pmin OPTK-6 A M OPTK-8 A M OPTK-10 A M OPTK-12 A M MODEL OPTK 2-JAW WEDGE TYPE POWER CHUCK Model Q R S T Umax V W X Y Z OPTK M55X2 3-M OPTK M60X2 3-M OPTK M85X2 3-M OPTK M100X2 3-M Max. Grip Force (KGF) Max Speed RPM Jaw Stroke (Dia.) (mm) Max Grip (mm) Min Grip (mm) Max Input Force (KGF) Plunger Stroke Weight (Kg) 19

20 High Speed Closed Center Power Chuck Model CLK 3-Jaw Wedge Type Direct OEM Replacement Features and Benefits: High quality alloy steel body allows for high speeds Sharply increased dynamic gripping force greatly improves work efficiency and safety Interchangeable top tooling with 1.5mm x 60 jaw serration pitch Compact and lightweight allowing for increased efficiency Direct mounting to fit ASA B5.9 Type A spindle High accuracy and endurance are realized due to improved lubrication system Heat treated alloy steel allows the achievement of high durability CHUCK SHIPS COMPLETE WITH: ASA B5.9 Type A spindle adapter 1 Set of soft top jaws Wrench Dimensions denoted in millimeters unless otherwise specified. MODEL CLK 3-JAW WEDGE TYPE POWER CHUCK Model Spindle A B C D E F G H J K L M Nmax Nmin Omax Omin Pmax Pmin CLK-6 A M CLK-8 A M CLK-10 A M CLK-12 A M Model Q R S T U V W X Y Z MODEL CLK 3-JAW WEDGE TYPE POWER CHUCK Max. Grip Force (KGF) Max Speed RPM Jaw Stroke (Dia.) (mm) Max Grip (mm) Min Grip (mm) Max Input Force (KGF) Plunger Stroke CLK M16X2 3-M CLK M20X2.5 3-M CLK M20X2.5 3-M CLK M20X2.5 3-M Weight (Kg) 20 *Larger sizes available - please contact our sales office at BUCK for more information.

21 High Speed Closed Center Power Chuck Model CLTK 2-Jaw Wedge Type Direct OEM Replacement Features and Benefits: High quality alloy steel body allows for high speeds Sharply increased dynamic gripping force greatly improves work efficiency and safety Interchangeable top tooling with 1.5mm x 60 jaw serration pitch Compact and lightweight allowing for increased efficiency Direct mounting to fit ASA B5.9 Type A spindle High accuracy and endurance are realized due to improved lubrication system Heat treated alloy steel allows the achievement of high durability CHUCK SHIPS COMPLETE WITH: ASA B5.9 Type A spindle adapter 1 Set of soft top jaws Wrench Dimensions denoted in millimeters unless otherwise specified. MODEL CLTK 2-JAW WEDGE TYPE POWER CHUCK Model Spindle A B C F G H J K L M Nmax Nmin Omax Omin Pmax Pmin CLTK-6 A M CLTK-8 A M CLTK-10 A M CLTK-12 A M MODEL CLTK 2-JAW WEDGE TYPE POWER CHUCK Model Q R S T U V W X Y Z Max. Grip Force (KGF) Max Speed RPM Jaw Stroke (Dia.) (mm) Max Grip (mm) Min Grip (mm) Max Input Force (KGF) Plunger Stroke CLTK M16X2 3-M CLTK M20X2.5 3-M CLTK M20X2.5 3-M CLTK M20X2.5 3-M Weight (Kg) 21

22 Air Operated High Precision Power Chuck Rotating Model SPAC FEATURES AND BENEFITS: Highly flexible design solves gripping or turning issues in turn-key applications Unique top tooling Compact and lightweight allowing for increased efficiency Can be applied for mass produced metal working machines as ordinary attachments Most helpful for clamping non-standard and complicated parts for finishing operation and fine finish cutting Standard clamping jaw stroke is.7 To 3 mm Also available in 2 or 4 jaws models CHUCK SHIPS COMPLETE WITH: 1 set of soft top jaws Wrench Dimensions denoted in millimeters unless otherwise specified. AIR CLAMPING ROTATING MODEL SPAC POWER CHUCK Model A B C D E F No. Jaws Stroke (dia.) Max RPM Grip Force Per Jaw 6 Bars SPAC mm kg/cm2 SPAC mm kg/cm2 SPAC mm kg/cm2 SPAC mm kg/cm2 SPAC mm kg/cm2 SPAC mm kg/cm2 SPAC mm kg/cm2 22

23 Super-Life Power Chuck The Original Buck Power Chuck Stationary Hydraulic/Pneumatic FEATURES AND BENEFITS: Sliding jaw style power chuck Available as 2-jaw, 2/3-jaw or 3-jaw version Stationary model has hydraulic/pneumatic built-in cylinder Ideal for CNC machining centers as well as standard mills and grinders Designed with a sealed face to help protect internal parts from abrasion for longer service life in the most demanding applications Guaranteed repeatability of.001 TIR or better on duplicate part production Wear plates under master jaws are easily shimmed or replaced to restore original accuracy Featured with American Square Serrated Master Jaws American Standard Tongue & Groove, Acme Serrated and Metric Serrated also available NC Thru Hole styles also available this style offers higher maximum draw bar forces and line pressures Parts available for previous models contact our sales office for more information STATIONARY HYDRAULIC/PNEUMATIC 3 JAW POWER CHUCK Model A B C D E F G H Jaw Travel Max Drawbar Pull (lb.) Max Line Pressure (psi) G G G G G G

24 Super-Life Power Chuck The Original Buck Power Chuck Hydraulic Sliding Jaw L K N J O D M FEATURES AND BENEFITS: Wedge style power chuck, made in USA by Buck Ajust-Tru Precision! The only power chuck with dead-zero precision mounting feature for near-zero runout Wide keyway to increase bearing surfaces, lessen wear and increase stability Wear plates under master jaws are easily shimmed or replaced to restore original accuracy Hardened and ground steel wear surfaces increase service life Hardened replaceable wedge bushings available for factory or field replacement. Simple grinding restores wedge to original fit 4-to-1 mechanical advantage in all chuck sizes Guaranteed repeatability of.001 TIR or better on duplicate part production. A B H F G C E Notes: Adjust-Tru power chuck mounting plate required. Please specify mounting at time of order Featured with American Standard Tongue and Groove Master Jaws American Square Serrated and Acme Serrated also available 2/3 Combination Jaw, N.C. Thru-hole, Stationary and Compensating models are also available for special order Parts available for previous models - please contact our sales office for more information SUPER-LIFE 3 JAW MODEL POWER CHUCK Model A B C D E F G H J K L M (max) M (min) N O G / / G / / G / G / G / G / Model Max Thru Hole (in.) Max RPM SUPER-LIFE 3 JAW MODEL POWER CHUCK Wedge Travel (in.) Max Drawbar Pull (lb.) Average Spindle Weight (lb.) Jaw Travel G G G G G G Cross Slots

25 Super-Life Power Chuck The Original Buck Power Chuck 2/3 Jaw Combination FEATURES AND BENEFITS: Sliding jaw style power chuck Ajust-Tru Precision! Dead-zero precision mounting features for near-zero runout Hold both round and square parts for greater flexibility and less machine down time Wide keyways to increase bearing surfaces, lessen wear and increase stability Extended master jaws bear against front plate to virtually eliminate bell mouthing Wear plates under master jaws are easily shimmed or replaced to restore original accuracy Hardened and ground steel wear surfaces increase service life Hardened replaceable wedge bushings available for factory or field replacement. Simple grinding restores wedge to original fit 4 to 1 mechanical advantage in all chuck sizes Guaranteed repeatability of.001 TIR or better on duplicate part production Extremely rugged and precise. Designed for easy maintenance Ajust-Tru power chuck mounting plate required. Please specify mounting at time of order Featured with American Standard Tongue & Groove Master Jaws American Square Serrated, Acme Serrated and Metric Serrated also available NC thru hole, stationary, and compensating models also available for special order Parts available for previous models contact our sales office for more information A B H D L K N J O C E M F G SUPER-LIFE 2/3 JAW COMBINATION POWER CHUCK Model A B C D E F G H J K L M (max) M (min) N O G / G / G / G / Model Max Thru Hole (in.) Max RPM SUPER-LIFE 2/3 JAW COMBINATION POWER CHUCK Wedge Travel (in.) Max Drawbar Pull (lb.) Average Spindle Weight (lb.) Jaw Travel G G G G Cross Slots 25

26 Buck Power Chuck Accessories Buck Offers a wide range of standard and custom built accessories to complete your power chuck package. Special Adapters We offer the technical service and equipment needed in order to apply Buck Chucks to special machines. Discuss your needs with your Buck Representative or call toll free to utilize our experienced Technical Service Department. Actuator Packages Complete actuation packages available - custom fit to your machine. Draw Bar: For power operated chucks. Specify machine make, model, spindle nose type and size and overall length of spindle when ordering. Master Key & Jaw Nut Conversion sets: To save the cost of replacing costly top jaws and special tooling, order Buck conversion sets. Acme Master Jaw to Square Serrated Top Jaws or Square Serrated Master Jaws to Acme Top Jaw sets are both available. Draw Tube For use with bushing equipped Super-Life Chucks. Permits the insertion of parts through the face of the chuck. Available in various lengths and diameters. When ordering, specify machine make, model, spindle nose type and size. 26 Soft Top Jaws A complete selection of Soft Top Jaws, readily available, competitively priced. Extension Tube Required for Air cylinder installation on the outboard end of the spindle where power-chucking adaptation has not been provided. Centering of the tube is maintained by a flange on the front end and a taper nut at the rear end of the tube. When ordering, specify the machine make, model, spindle nose type, size and overall length, plus minimum bore size.

27 Buck Forkardt Quick Change Chucks Model FNC Power Chuck Precision made by Forkardt, Germany Available as 3-jaw version Extremely high grip forces due to patented heavy duty, trapezoidal wedge hook actuation Jaw change-over time for next turning operation is just a few seconds Much less weight than other quick-jaw-change chucks - higher speeds Model Actuating Force (lbs) FNC POWER CHUCK 3 JAW Grip Force (lbs) Max RPM (1/min) Shipping Wt. (lbs) Jaw Stroke (per jaw) mm inches 200mm (8 ) mm (8 ) mm (10 ) / / mm (12 ) mm (15.75 ) mm (19.68 ) mm (24.80 ) Available with base jaws, one-piece stepped hard jaws, special soft top jaws, hard top jaws, soft monoblock jaws and special jaws. Model F+ Manual Chuck Large thru-hole for bar work Quick jaw change-over - takes just seconds Available with wide range of ASA spindle adapters Model Bore Max. Torque Mdmax (Nm) F+ MANUAL CHUCK 3 JAW Max Gripping Force Fspmax (dan) Max. Spindle Speed n max (min -1 ) Moment of Inertia J (kgm 2 ) Flywheel Effect WR 2 (kpm 2 ) Weight (with base jaws) (kg) 125mm (5 ) mm (6 ) mm (8 ) mm (10 ) mm (12 ) mm (15.75 ) mm (19.68 ) mm (24.80 ) Available with base jaws, one-piece stepped hard jaws, special soft top jaws, hard top jaws, soft monoblock jaws and special Jaws. 27

28 ALSO AVAILABLE FROM BUCK BUCK Pull Back Power Chucks 2 or 3-Jaw Ajust-Tru precision plus 100% more gripping power than conventional chucks. The Pull-Back is the perfect match for single or multiple spindle machines making heavy cuts on precision work. No other chuck comes close to matching this quality, accuracy, and durability. Available in 5 to 24 other sizes upon request Logansport Self Centering Power Chucks 352, 452, 430, 440, 330 and 340 series 2-jaw, 3-jaw or 2/3-jaw available The Logansport lever design offers a high degree of mechanical advantage which, in turn, allows for the use of smaller diameter rotating cylinders. Quality materials are used throughout and all center parts are protected by pressure lubrication. Logansport chucks have long enjoyed a well deserved reputation for durability and uninterrupted service. Available in 6 to 24 other sizes upon request Logansport 3-Jaw Compensating Power Chucks 362, 364 & 370 Series One Piece Body The design simplicity of Logansport chucks insures lasting accuracy and efficiency. They are one piece body, cored for light weight, and radially reinforced for extra rigidity. Compensating power chucks are used for turning parts between centers. Available in 6 to 24 other sizes upon request 2155 Traversefield Dr. Traverse City, MI Tel: BUCK Fax: info@buckchuck.com Buck Chuck Company is your workholding solution. If there is something you need that is not featured here, please contact us. We may be able to help. BC 2009 Rev.3