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.
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TAPER-LOCK® Weld-on Hubs

TAPER-LOCK® Weld-on Hubs
TAPER-LOCK® Weld-on Hubs

TAPER-LOCK® Weld-on Hubs
TAPER-LOCK® Weld-on Hubs

TAPER-LOCK® Weld-on Hubs
TAPER-LOCK® Weld-on Hubs

TAPER-LOCK® Weld-on Hubs
TAPER-LOCK® Weld-on Hubs

TAPER-LOCK® Weld-on Hubs
Weight N/A 0.800 lb N/A 0.800 lb N/A 1.500 lb N/A 2.700 lb N/A 1.500 lb
Use Bushing N/A 1610 N/A 1610 N/A 2012 N/A 2517 N/A 2012
D N/A 3.000 in N/A 3.000 in N/A 3.625 in N/A 4.250 in N/A 3.625 in
P N/A 2.875 in N/A 2.875 in N/A 3.438 in N/A 4.125 in N/A 3.438 in
L N/A 1.000 in N/A 1.000 in N/A 1.250 in N/A 1.750 in N/A 1.250 in
T N/A 0.141 in N/A 0.250 in N/A 0.250 in N/A 0.250 in N/A 0.312 in