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Tsubaki offers a complete line ofSplit Taper style 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 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 Tsubaki hubs are made from steel bar stock (not powdered or sintered metal). The Split Taper style weld-on hubs listed below include appropriate tapered bores and mounting holes.

All dimensions in inches unless otherwise stated.
Unit of Measure

Bushing

 N/A R1

OD - Outside Diameter

 N/A 5.75 in

A

 N/A 0.709 in

B

 N/A 4.000 in

C - Pilot Diameter

 N/A 5.625 in

K

 N/A 2.188 in

Bolt Circle

 N/A 4.625 in

W

 N/A 0.750 in

X - Total Length

 N/A 2.000 in

ANGLE of Hole

 N/A 60 º

Length of Tapped Holes

 N/A 1.125

Number of Tapped Holes

 N/A 3

Screw Size - Tapped Holes

 N/A 3/8-16

Taper per Foot on Diameter

 N/A 3/4

Weight

 N/A 7.3 lb