Hersey Clutch Company
Hersey Clutch Company
8 Commerce Drive
P.O. Box 328
Orleans, MA 02653-0328
Phone: 508.255.2533
Fax: 508.255.9172
E-Mail: info@herseyclutch.com
Website: www.HerseyClutch.com
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The Model TB "Through Bore" Torque Limiters are designed to have the motor shaft, gearbox shaft, or a jack shaft project straight through the entire clutch to provide bearing support for the output drive. They are available with a plain shaft for your coupling, pulley, gear or sprocket or built ready to run with your specified drive as an integral component designed into the clutch at the factory. When a jam or overload occurs, the output shaft will slip or stop. They reset automatically, makemore
Model TB - Spring & Detent Clutches <-!0125->
Unit of Measure
1 2 3 

P/N

Torque

Bore Size A

Output Shaft Diameter

10 TB - 3/8 N/A 10 in·lb0.83 ft·lb1.13 N·m N/A 3/8 Inch N/A 1 Inch1-1/2 Inch1-1/4 Inch1-1/8 Inch
10TB N/A 10 in·lb0.83 ft·lb1.13 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1 Inch1-1/2 Inch1-1/4 Inch1-1/8 Inch
15TB N/A 15 in·lb1.25 ft·lb1.70 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1 Inch1-1/2 Inch1-1/4 Inch1-1/8 Inch
20TB-1/2-2519BTU N/A 20 in·lb1.67 ft·lb2.26 N·m N/A 1/2 Inch N/A
20TB-3/4-3518 N/A 20 in·lb1.67 ft·lb2.26 N·m N/A 3/4 Inch N/A
20 TB N/A 20 in·lb1.67 ft·lb2.26 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1 Inch1-1/2 Inch1-1/4 Inch1-1/8 Inch
25 TB-1/2x1" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 1/2 Inch N/A 1 Plain Shaft Inch
25TB N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1 Inch1-1/2 Inch1-1/4 Inch1-1/8 Inch
30 TB N/A 30 in·lb2.50 ft·lb3.39 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1 Inch1-1/2 Inch1-1/4 Inch1-1/8 Inch
40TB N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1 Inch1-1/2 Inch1-1/4 Inch1-1/8 Inch
40 TB 1/2 X 1" N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 1/2 Inch N/A 1 Plain Shaft Inch
40 TB 3/4"-3.0A N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 3/4 Inch N/A
40TB3/4" - 18L100 N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 3/4 Inch N/A
40 TB 3/4X1-1/4 N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 3/4 Inch N/A 1-1/4" Plain Shaft Inch
40 TB 5/8x1-1/4" N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 5/8 Inch N/A 1-1/4" Plain Shaft Inch
40 TB 7/8x1-1/2" N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 7/8 Inch N/A 1-1/2" Plain Shaft Inch
40 TB 7/8-3.0A N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 7/8 Inch N/A
40 TB 1"-3.0A N/A 40 in·lb3.33 ft·lb4.52 N·m N/A 1 Inch N/A
50 TB 1/2"-3518 N/A 50 in·lb4.17 ft·lb5.65 N·m N/A 1/2 Inch N/A
50 TB 1/2x1" N/A 50 in·lb4.17 ft·lb5.65 N·m N/A 1/2 Inch N/A 1 Plain Shaft Inch
50 TB 3/4X1-1/4 N/A 50 in·lb4.17 ft·lb5.65 N·m N/A 3/4 Inch N/A 1-1/4 Plain Shaft Inch
50TB N/A 50 in·lb4.17 ft·lb5.65 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1 Inch1-1/2 Inch1-1/4 Inch1-1/8 Inch
60 TB 3/4"-3.0A N/A 60 in·lb5.00 ft·lb6.78 N·m N/A 3/4 Inch N/A
60 TB 3/4" X 1-1/4" N/A 60 in·lb5.00 ft·lb6.78 N·m N/A 3/4 Inch N/A 1-1/4 Plain Shaft Inch
60 TB 7/8"-3.0A N/A 60 in·lb5.00 ft·lb6.78 N·m N/A 7/8 Inch N/A
Unit of Measure
1 2 3