U.S. Tsubaki Power Transmission, LLC
301 E. Marquardt Dr.
Wheeling, IL 60090

Phone: 847.459.9500 or 800.323.7790
Fax: 847.459.9515
Email: sales@ustsubaki.com
Website: www.ustsubaki.com
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Segmental rim sprockets and traction wheels are split rings (two or more pieces) that generally fasten by bolting to a standard hub body. Segmental rims are usually applied when ease of replacement is desired because the chain, shaft, and bearings do not have to be disturbed during sprocket replace ment. When downtime is critical in an operation, consider segmental rim sprockets and traction wheels.

Segmental rims are made of special steel plate material and heat treated to high hardness levels to achieve long service life. All elevator service segmental rim sprocket teeth are hardened to a 50 Rc minimum hardness level. This high hardness resists abrasive wear common in elevator operation. Consult the U.S. Tsubaki Engineering Department when material being conveyed is cement, ash, or other high MOHS hardness material. Special sprocket tooth hardness is necessary to resist wear from such hard abradants.

Hub body number indicates bold circle diameter and does not ensure interchangability between manufacturers. Contact us for details.
Segmental-Rim-Sprockets
Unit of Measure
1 

Item #

Bolt Circle Diameter 

Bolt Size 

Quantity

A

B

F

10 N/A 10.000 in N/A 0.500 in N/A 12 N/A 8.500 in N/A 11.750 in N/A 7.000 in
12 N/A 12.000 in N/A 0.625 in N/A 12 N/A 10.500 in N/A 13.750 in N/A 8.000 in
16 N/A 16.000 in N/A 0.750 in N/A 12 N/A 14.500 in N/A 17.750 in N/A 9.000 in
20 N/A 20.000 in N/A 0.750 in N/A 12 N/A 18.500 in N/A 21.750 in N/A 11.000 in
25 N/A 25.000 in N/A 1.000 in N/A 12 N/A 23.000 in N/A 27.750 in N/A 13.000 in
Unit of Measure
1