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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Tsubaki offers a complete line of Split 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 dimension hubs are available 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.
Unit of Measure

Specifications

Bushing

 N/A Q1

OD - Outside Diameter

 N/A 4.50 in

A - Length

 N/A 0.709 in

B - Diameter

 N/A 2.875 in

C - Pilot Diameter

 N/A 4.375 in

K - Length

 N/A 1.563 in

Bolt Circle

 N/A 3.375 in

W

 N/A 0.500 in

X - Total Length

 N/A 1.750 in

ANGLE of Hole

 N/A 60 º

Length of Tapped Holes

 N/A 0.875

Number of Tapped Holes

 N/A 3

Screw Size - Tapped Holes

 N/A 3/8-16

Weight

 N/A 4.4 lb