Motion control
Clutches, Brakes & Torque Limiters replacement guide
Identify mechanical, electromagnetic, pneumatic, and hydraulic clutches, brakes, backstops, and torque limiters by torque, speed, engagement method, and mounting interface.
Evidence boundary. Clutch and brake substitutions are duty-sensitive. Confirm dynamic torque, heat, inertia, actuation, fail-safe behavior, mounting, and guarding before calling a unit interchangeable.
Items covered01 · 12 component types
- Mechanical clutches
- Electromagnetic clutches
- Pneumatic clutches
- Hydraulic clutches
- Holding brakes
- Dynamic brakes
- Motor brakes
- Industrial caliper brakes
- Torque limiters
- Overload clutches
- Backstops
- One-way clutches
What to capture02
Manufacturer, model, size, and engagement typeRecord this before searching for a substitute.
Static and dynamic torque plus speed ratingRecord this before searching for a substitute.
Bore, shaft, pilot, flange, keyway, spline, and mountingRecord this before searching for a substitute.
Voltage, coil, air, hydraulic, or mechanical actuationRecord this before searching for a substitute.
Cycle rate, heat dissipation, fail-safe behavior, and environmentRecord this before searching for a substitute.
What must match03
Torque capacity and thermal dutyConfirm it against the original equipment, duty, and source documentation.
Speed and inertiaConfirm it against the original equipment, duty, and source documentation.
Mechanical mounting and shaft interfaceConfirm it against the original equipment, duty, and source documentation.
Actuation voltage, pressure, or release methodConfirm it against the original equipment, duty, and source documentation.
Fail-safe action, response, wear adjustment, and guardingConfirm it against the original equipment, duty, and source documentation.
Common searches04
What clutch replaces this model?
How do I size a replacement industrial brake?
What torque limiter fits this shaft?
Can an electromagnetic clutch with the same bore replace mine?
Authoritative starting points05