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
638 Dim. is + .005; 750 Dim. is + .005-.000.
Idler Ball Bearing
Ball Bearing Idler Sprocket Hardened Teeth
Unit of Measure
1 

Item #

No. Teeth

Chain Size

O.D.

B

L

W

Quantity
35BB20H N/A 20 N/A 35 N/A 2.600 in N/A 0.638 in N/A 0.720 in N/A 0.168 in
40BB17H N/A 17 N/A 40 N/A 2.970 in N/A 0.638 in N/A 0.720 in N/A 0.284 in
40BB18H N/A 18 N/A 40 N/A 3.140 in N/A 0.638 in N/A 0.720 in N/A 0.284 in
50BB15H N/A 15 N/A 50 N/A 3.320 in N/A 0.638 in N/A 0.720 in N/A 0.343 in
50BB17H N/A 17 N/A 50 N/A 3.720 in N/A 0.638 in N/A 0.720 in N/A 0.343 in
60BB13H N/A 13 N/A 60 N/A 3.510 in N/A 0.638 in N/A 0.720 in N/A 0.459 in
60BB15H N/A 15 N/A 60 N/A 3.980 in N/A 0.638 in N/A 0.720 in N/A 0.459 in
80BB12H N/A 12 N/A 80 N/A 4.360 in N/A 0.750 in N/A 0.610 in N/A 0.575 in
Unit of Measure
1