Print Back
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.
QD® Weld-on Hubs
Unit of Measure
Items QD® Weld-on Hubs - B
35SHW
QD® Weld-on Hubs
QD® Weld-on Hubs - B
40SDSW
QD® Weld-on Hubs
QD® Weld-on Hubs - B
40SKW
QD® Weld-on Hubs
QD® Weld-on Hubs - B
50SDSW
QD® Weld-on Hubs
QD® Weld-on Hubs - B
50SKW
QD® Weld-on Hubs
Type  N/A B
Weight N/A 0.900 lb N/A 1.000 lb N/A 2.400 lb N/A 1.000 lb N/A 2.400 lb
Use Bushing N/A SH N/A SDS N/A SK N/A SDS N/A SK
D N/A 3.000 in N/A 3.500 in N/A 4.250 in N/A 3.625 in N/A 4.250 in
P N/A 2.875 in N/A 3.125 in N/A 3.875 in N/A 3.438 in N/A 4.125 in
L N/A 0.812 in N/A 0.750 in N/A 1.250 in N/A 0.750 in N/A 1.250 in
T N/A 0.141 in N/A 0.250 in N/A 0.250 in N/A 0.312 in N/A 0.312 in