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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.
Unit of Measure

Specifications

Type 

N/A B

Weight

N/A 2.400 lb

Use Bushing

N/A SK

D

N/A 4.250 in

P

N/A 3.875 in

L

N/A 1.250 in

T

N/A 0.250 in

UPC Code

N/A 097039386823