The Model DC "Flexible, Direct Coupling" Torque Limiter are spring & detent clutches designed & factory set to transmit up to a pre-determined torque from the motor, over which, the driven side slips or stops while the driver side continues to rotate until the overload condition has been removed. The torque limiter will then automatically re-engage and continue to drive normally. This action prevents damage to the power transmission, machinery, and product as well as eliminating stalled motors which lead to burn outs and operation downtime. They are used to couple two shafts together allowing up to 6 degrees of angular and 1/32" of parallel misalignment. They are installed the same as any jaw type coupling, require no lubrication, and run in either direction. They offer a precise and repeatable breakaway torque setting and are not affected by heat, humidity, and the presence of oil. They are not readily re-set by careless machine operators. This product group is manufactured as bi-directional direct coupling torque limiters.
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P/N

Torque

Bore Size A

Bore Size B

Design Speed Range

5DC N/A 5 in·lb0.42 ft·lb0.57 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A Up to 1800 rpm
8-1/2DC 1/2x1/2" N/A 8.5 in·lb0.71 ft·lb0.96 N·m N/A 1/2 Inch N/A 1/2 Inch N/A Up to 1800 rpm
8-1/2DC 5/8x5/8" N/A 8.5 in·lb0.71 ft·lb0.96 N·m N/A 5/8 Inch N/A 5/8 Inch N/A Up to 1800 rpm
10DC N/A 10 in·lb0.83 ft·lb1.13 N·m N/A 1/4 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1/4 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A Up to 1800 rpm
10/20DC-3/8 x 3/4 N/A 10 to 20 in·lb0.83 to 12.5 ft·lb1.12 to 2.25 N·m N/A 3/8 Inch N/A 3/4 Inch N/A Up to 1800 rpm
10/25DC N/A 10 to 25 in·lb0.83 to 2.08 ft·lb1.12 to 2.82 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A Up to 1800 rpm
10/35DC N/A 10 to 35 in·lb0.83 to 2.91 ft·lb1.12 to 2.82 N·m N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A Up to 1800 rpm
15DC 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 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A Up to 1800 rpm
20DC 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 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A Up to 1800 rpm
25DC 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 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch N/A Up to 1800 rpm
25DC - select bore 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 Inch12 mm15 mm20 mm24 mm25 mm N/A 1/4 Inch5/16 Inch3/8 Inch1/2 Inch5/8 Inch3/4 Inch7/8 Inch1 Inch12 mm15 mm20 mm24 mm25 mm N/A Up to 1800 rpm
25DC 1/2x1/2" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 1/2 Inch N/A 1/2 Inch N/A Up to 1800 rpm
25DC 1/2x3/4" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 1/2 Inch N/A 3/4 Inch N/A Up to 1800 rpm
25DC 1/2x5/8" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 1/2 Inch N/A 5/8 Inch N/A Up to 1800 rpm
25DC 3/4x3/4" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 5/8 Inch N/A 3/4 Inch N/A Up to 1800 rpm
25DC 3/4x7/8" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 5/8 Inch N/A 3/4 Inch N/A Up to 1800 rpm
25DC 5/8 THRU N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 5/8 Inch N/A 5/8 Inch N/A Up to 1800 rpm
25DC 5/8x3/4" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 5/8 Inch N/A 3/4 Inch N/A Up to 1800 rpm
25DC 5/8x5/8" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 5/8 Inch N/A 5/8 Inch N/A Up to 1800 rpm
25DC 7/8x7/8" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 7/8 Inch N/A 7/8 Inch N/A Up to 1800 rpm
25DC 1-1/4x1-1/4" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 1-1/4 Inch N/A 1-1/4 Inch N/A Up to 1800 rpm
25DC 1-1/8x1-1/8" N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 1-1/8 Inch N/A 1-1/8 Inch N/A Up to 1800 rpm
25DC 12MMx12MM N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 12 mm N/A 12 mm N/A Up to 1800 rpm
25DC 15MMx15MM N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 15 mm N/A 15 mm N/A Up to 1800 rpm
25DC 15MMx20MM N/A 25 in·lb2.08 ft·lb2.83 N·m N/A 15 mm N/A 20 mm N/A Up to 1800 rpm
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