R+W Antriebselemente GmbH
R+W - ES2 TORQUE LIMITER
For over 30 years, R+W Antriebselemente GmbH has been manufacturing couplings, torque limiters and shaft lines for the whole world from 0.05 Nm to 2000 kNm that could meet your needs. In addition to a wide range of products, we can also offer you special couplings totally adapted to your applications.
FOR GUARANTEED SAFETY IN THE EVENT OF OVERLOAD: TORQUE LIMITERS FROM R+W
Many factors can cause overloads. Torque limiters from R+W guarantee a quick and reliable separation between drive and output side when a predefined torque is exceeded.
THE TECHNICAL BASIS: THE PRINCIPLE OF ENGAGEMENT OF THE R+W TORQUE LIMITER BALL
Mechanical torque limiters from R+W operate according to the spring-loaded ball engagement principle and serve as the ultimate emergency stopping elements of machines. Characteristic of the torque limiter operating mode: the high rigidity of the elements and the complete absence of play. If the torque exceeds the defined threshold, the balls engage and separate the drive side from the output side.
- Structure :
- Two coupling hubs manufactured with high concentricity, with concave shaped feed dogs.
- The torque limiter is integrated into one side.
- Optional elastomer insert in execution A or B.
- Temperature range: depending on the elastomer insert chosen.
- Torsional stiffness: In order to optimize the drive unit, we offer different Shore hardnesses for the elastomer inserts.
- Backlash: Absolutely backlash-free thanks to a tight, force-bonded connection and a proven principle.
- Tolerance clearance: of the shaft-hub connection 0.01 - 0.05 mm.
- Material :
- Safety element: high-strength hardened steel coupling hubs
- D1: up to series 450 coupling hubs made of high-strength aluminum, from series 800 made of steel
- D2: up to series 60 in high-strength aluminum, from series 150 in steel
- Elastomer insert: precisely manufactured plastic, extremely wear-resistant.
- Technical characteristics :
- Rated torque: 2 - 900 Nm
- Shaft diameter from 5 to 80 mm
- Properties of the ES2 model torque limiter:
- Compact shape construction
- Exact torque limitation
- High cut-in travel in case of overload
- Fast cut-off, on the order of a thousandth of a second
- Backlash-free execution thanks to proven R+W principle
- Electrical insulation
- Plug-in coupling