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U.S. Tsubaki offers the most complete line of QD® and TAPER-LOCK weld-on hubs for insertion and welding to produce “B” style sprockets, sheaves, and other applications without hub protrusion. To provide greater strength for this type of shaft-locking mechanism and to reduce heat distortion caused by welding, these hubs are dimensionally the same as our sprocket items. Special dimensional hubs are available per your specifications on a made-to-order basis. All U.S. Tsubaki hubs are made from steel bar stock (not powdered or sintered metal). The QD and TAPER-LOCK weld-on hubs listed below include appropriate tapered bores and mounting holes.
TAPER-LOCK® is a registered trademark of Rockwell Automation.
Unit of Measure

Specifications

Type 

N/A W

For Use with Bushing

N/A 4040

Max. Bore of Bushing

N/A 1.438 in

A

N/A 7.750 in

B

N/A 4.000 in

C

N/A 1.500 in

D

N/A 1.000 in

F

N/A 0.375 in

G

N/A 7.250 in

H

N/A 6.875 in

J

N/A 5.750 in

K

N/A 7.000 in

Weight

N/A 29.000 lb

Additional Information

Information

N/A TAPER-LOCK type W weld-on hubs are designed for use in applications such as welding to plate sprockets, pulleys, and agitators. They are made of steel, drilled, tapped, and taper bored for TAPER-LOCK bushings.
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