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
Print Back
No. 40, B Style, 1.250" 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 28

Finished Bore Diameter

 N/A 1.250 in

Max. Bore

 N/A 2.250 in

Weight

 N/A 2.500 lb

Tooth Nominal Width

 N/A 0.284 in

Hardened Teeth 

 N/A Yes

Industry Equivalent

 N/A 40BS28 1 1/4

UPC Code

 N/A 097039325198

Chain Technical Data

Pitch

 N/A 0.500 in

Chain Size

 N/A 40

Sprocket Diameters

Outside Diameter

 N/A 4.740 in

Pitch Diameter

 N/A 4.465 in

Caliper Diameter

 N/A 4.153 in