Worldwide Chuck Services, Inc.


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Worldwide Chuck Services is a master distributor of Kitagawa products.

Kitagawa Products Menu

Scroll Chuck
Four-Jaw Independent Chuck
Standard Thru-Hole Chuck
Big Bore High Speed Chuck
Super Big-Bore Power Chuck
Long Stroke Lever Style Chuck
Quick Jaw Change Chuck
Quick Jaw Change Chuck
Counter Balanced Chuck
Closed Center Chuck
Long Stroke Two-Jaw Chuck
Power Wing Chuck
Pull Back Chuck
Three-Jaw Pull Style Chuck
Four-Jaw Self-Centeriing Power Chuck

Two Stage Hydraulic Cylinder

High Speed Wheel Chuck
Self-Contained Air Chuck
Ultra High Precision
Standard Thru-Hole Cylinder
Big Bore High Speed Cylinder
Hydraulic Cylinder
Closed Center Cylinder
Stationary Air Cylinder
High Speed Air Cylinder
Work Gripper
Soft Jaw
Chuck Adapter
Hard Jaw

HOH SERIES Counter Balanced Power Chucks


Three-jaw wedge style power chucks are ideal for ultra high speed applications. They provide maximum gripping force at high speeds. Their unique built-in counter balanced mechanism assures stabilized jaw force every time. These deliver consistent accuracy and repetitive chucking. Counter balance allows for lower pressure gripping which is suitable for thin wall materials.

U.S. Patent No. 4410192

Special Features

  • High Speed
  • Large Thru-Hole
  • Greater Gripping Forces at High Speeds
  • Compact and Lightweight
  • Direct Mount
  • High Accuracy and High Endurance
  • Lower Gripping Force Capability

Uses can vary from those high-speed operations requiring heavy jaw forces for roughing work to those requiring light jaw forces for preventing part distortions. This Counter Balanced Chuck design assures accurate, repetitive chucking.

Model HOH chucks are ultra high speed three-jaw counter balanced open center power chucks, direct mounted on ASA B5.9 type A pindles.

Model HOH chucks are manufactured from high grade alloy steel. All sliding surfaces are hardened and ground for accurate actual running and long service repeatability.

Lubrication nipple in each base jaw.

Base Jaw Serration: Chuck size 6" to 15": 1.5mm x 60°

Mounting: Direct mounting to fit ASA B5.9 type A (interchangeable with DIN 55026). DIN 55021, 55022 and 55027 mounting are available on request.

Standard Equipment: Chuck assembled with adapter, chuck mounting bolts. T-nuts and jaw mounting bolts with wrench. Draw nut wrench.


Spindle Nose (2) A2-5 A2-6 A2-8 A2-8 A2-11
Open Center (Diameter) in. 1.772 2.047 2.559 3.071 4.626
Jaw Stroke (Diameter) in. 0.217 0.291 0.346 0.417 0.417
Plunger Stroke in. 0.472 0.630 0.748 0.906 0.906
Max. Draw Bar Pull kN (kgf) 22 (2243) 34 (3467) 38 (3875) 49 (4997) 71 (7240)
Max. Gripping Force kN (kgf) 57 (5812) 84 (8566 99 (10095) 129 (13154) 180 (18355)
Max. Speed rpm 7000 6000 4500 3500 2800
Net Weight lbs. 34.5 66.0 79.5 (1) 133.0 (1) 244.5 (1)
GD 2 kg.m 2 .068 .193 .350 .875 2.55
Matching Cylinder S1246 S1552 F1768H F2078H F2511H
Matching Hard Top Jaw HB06B1 HB08A1 HB10A1 HB12B1 HB15A1
Matching Soft Top Jaw SB06B1 SB08B1 SB10B1 SB12A1 SB15C1

(1) Without top jaws.

(2) Other spindle mounts available.




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Worldwide Chuck Services, Inc.

1430 Danner Drive
 Aurora,  OH  44202
Phone: (330) 562-4509
Fax: (330) 562-2022


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