U.S. Tsubaki Power Transmission, LLC
U.S. Tsubaki Holdings, Inc.
Corporate Headquarters
301 E. Marquardt Dr.
Wheeling, IL 60090 USA

Toll Free: 800.323.7790
Phone: 847.459.9500
Fax: 847.459.9515
Email: sales@ustsubaki.com
Website: www.ustsubaki.com
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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.
QD® Weld-on Hubs
Unit of Measure
1 

Item #

Type 

Weight

Use Bushing

D

P

L

T

Quantity
35SHW N/A B N/A 0.900 lb N/A SH N/A 3.000 in N/A 2.875 in N/A 0.812 in N/A 0.141 in
40SDSW N/A B N/A 1.000 lb N/A SDS N/A 3.500 in N/A 3.125 in N/A 0.750 in N/A 0.250 in
40SKW N/A B N/A 2.400 lb N/A SK N/A 4.250 in N/A 3.875 in N/A 1.250 in N/A 0.250 in
50SDSW N/A B N/A 1.000 lb N/A SDS N/A 3.625 in N/A 3.438 in N/A 0.750 in N/A 0.312 in
50SKW N/A B N/A 2.400 lb N/A SK N/A 4.250 in N/A 4.125 in N/A 1.250 in N/A 0.312 in
50SFW N/A B N/A 3.700 lb N/A SF N/A 5.000 in N/A 4.625 in N/A 1.250 in N/A 0.312 in
60SDSW N/A B N/A 1.000 lb N/A SDS N/A 3.500 in N/A 3.125 in N/A 0.750 in N/A 0.438 in
60SKW N/A B N/A 2.400 lb N/A SK N/A 4.250 in N/A 3.875 in N/A 1.250 in N/A 0.438 in
60SFW N/A B N/A 3.600 lb N/A SF N/A 5.000 in N/A 4.625 in N/A 1.250 in N/A 0.438 in
60EW N/A B N/A 7.800 lb N/A E N/A 6.250 in N/A 5.875 in N/A 1.625 in N/A 0.438 in
80SFW N/A B N/A 3.500 lb N/A SF N/A 5.000 in N/A 4.625 in N/A 1.250 in N/A 0.562 in
80EW N/A C N/A 7.700 lb N/A E N/A 6.250 in N/A 5.875 in N/A 1.625 in N/A 0.562 in
80FW N/A C N/A 14.700 lb N/A F N/A 7.000 in N/A 6.625 in N/A 2.500 in N/A 0.562 in
100EWB N/A B N/A 7.500 lb N/A E N/A 6.250 in N/A 5.875 in N/A 1.625 in N/A 0.688 in
100EWC N/A C N/A 7.500 lb N/A E N/A 6.250 in N/A 5.875 in N/A 1.625 in N/A 0.688 in
100FW N/A C N/A 14.600 lb N/A F N/A 7.000 in N/A 6.625 in N/A 2.500 in N/A 0.688 in
120EW N/A B N/A 7.400 lb N/A E N/A 6.250 in N/A 5.875 in N/A 1.625 in N/A 0.875 in
120FW N/A C N/A 14.300 lb N/A F N/A 7.000 in N/A 6.625 in N/A 2.500 in N/A 0.875 in
120JW N/A C N/A 23.700 lb N/A J N/A 8.000 in N/A 7.500 in N/A 3.188 in N/A 0.875 in
160FW N/A B N/A 14.000 lb N/A F N/A 7.000 in N/A 6.625 in N/A 2.500 in N/A 1.094 in
160JW N/A C N/A 23.300 lb N/A J N/A 8.000 in N/A 7.500 in N/A 3.188 in N/A 1.125 in
160MW N/A C1 N/A 59.300 lb N/A M N/A 10.000 in N/A 9.500 in N/A 5.188 in N/A 2.250 in
Unit of Measure
1