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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No. 40, B Style, 1.125" Finished Bore
All dimensions are nominal values and for reference only
Unit of Measure

Specifications

Hub Diameter

 N/A 3.250 in

LTB

 N/A 1.000 in

Style

 N/A B

No. Teeth

 N/A 31

Finished Bore Diameter

 N/A 1.125 in

Max. Bore

 N/A 2.250 in

Weight

 N/A 2.880 lb

Tooth Nominal Width

 N/A 0.284 in

Hardened Teeth 

 N/A Yes

Industry Equivalent

 N/A 40BS31 1 1/8

UPC Code

 N/A 097039325440

Chain Technical Data

Pitch

 N/A 0.500 in

Chain Size

 N/A 40

Sprocket Diameters

Outside Diameter

 N/A 5.220 in

Pitch Diameter

 N/A 4.942 in

Caliper Diameter

 N/A 4.623 in