Torque limiters
Unexpected overloads can damage motors, gearboxes and valuable machine components within milliseconds. R+W Torque Limiter Couplings are designed to protect drive systems before costly failures occur. During normal operation they provide completely zero-backlash torque transmission, while instantly disconnecting the drivetrain when the preset torque limit is exceeded.
The couplings operate using a proven spring-ball detent mechanism. As soon as the transmitted torque exceeds the predefined release value, the driving and driven sides are mechanically disengaged in less than 5 milliseconds. This rapid response protects machine components from overload damage while minimizing downtime and repair costs. Thanks to their zero-backlash design, R+W torque limiters are perfectly suited for servo drives, robotics, automated production equipment and other highly dynamic motion control applications.
As the official Hungarian partner, BIBUS Kft. provides engineering support for selecting the correct release torque, sizing the coupling and optimizing the complete drivetrain to achieve maximum machine protection and operational reliability.
Key Features
✔ Mechanical overload protection
✔ Disengagement in less than 5 ms
✔ Zero-backlash torque transmission
✔ Spring-ball detent mechanism
✔ Adjustable release torque
✔ Designed for dynamic servo systems
✔ Protects motors and gearboxes
✔ Fast system recovery
✔ Maintenance-free design
✔ Engineering support from BIBUS Kft.
Why Choose R+W Torque Limiter Couplings?
✔ Protect valuable machine components
✔ Extremely fast overload response
✔ Zero-backlash operation during normal use
✔ High positioning accuracy
✔ Ideal for dynamic automation systems
✔ Proven German engineering
What Problems Do They Solve?
✔ Prevent overload damage
✔ Protect motors and gearboxes
✔ Reduce machine downtime
✔ Lower maintenance costs
✔ Improve machine reliability
✔ Safeguard automated production equipment
How Can We Help?
Our engineers support you with:
- release torque selection
- coupling sizing
- drivetrain calculations
- overload risk analysis
- replacement of existing couplings
- complete drive system optimization
Our quality brands
13 Products
SK1 – Torque limiter
Safety system: hardened steel, Clamping ring: size 1.5 – 10 aluminium, Conical clamping bushing: size 15 – 2500 steel
SKP – Torque limiter
Safety system: hardened steel, spring loaded ball-detent principal, with simple keyway connection
SKN –Torque limiter
With clamping ring and one clamping screw, Safety system: spring loaded ball-detent principle
SKH – Torque limiter
Two clamping hubs with two clamping screw in each, Torque limiter system: spring loaded ball-detent principle
SK2 – Torque limiter
Two conical clamping assemblies with six tightening screws each, Safety system: spring loaded ball-detent principle
SK3 – Torque limiter
Two conical clamping assemblies with six tightening screws each, Safety system: spring loaded ball-detent principle
SK5 – Torque limiter
Two clamping hubs with one clamping screw each, and one of the clamping hubs with tapered male segment, Safety system: spring loaded ball-detent principle
ES2 – Torque limiter
Two clamping hubs with one clamping screw each and concave driving jaws, Safety system: spring loaded ball-detent principle
SLN – Torque limiter
With clamping collar and a single clamping screw, Safety system: spring loaded ball-detent principle
