8ECR0020.1111C-0
The B & R Automation 8ECR0020.1111C-0 elastomer coupling from the CM16 Motor Cables series is engineered to provide reliable mechanical power transmission in industrial automation environments. This precision coupling features a dual clamp hub bore design with 11 mm/11 mm bore diameters, enabling secure shaft attachment on both driving and driven axes. Constructed with an aluminum hub and a medium-hard elastomer insert (shore 98A typical), it balances torsional flexibility with torsional stiffness for smooth torque transfer. The coupling’s compact Size 20 footprint and lightweight construction simplify integration into space-constrained servo and motor systems without compromising performance.
This coupling’s technical specifications ensure consistent operation under dynamic conditions: it supports a torque capacity of approx. 3.5 Nm and maximum rotational speeds of up to 10,000 rpm. The overall length of approx. 34 mm and outer diameter of approx. 28 mm minimize overhang and reduce system inertia. Clamping is achieved via M4 clamping screws, delivering backlash-free engagement while facilitating rapid assembly and disassembly. Designed for use across a broad temperature range from –30°C to +90°C, the coupling withstands thermal cycles typical of factory automation. Additional critical specifications include its classification as an elastomer coupling and the use of a precision clamp hub bore type for reliable torque transmission.
Operational features of the 8ECR0020.1111C-0 coupling focus on durability and maintenance efficiency. The medium-hard elastomer insert absorbs minor misalignment and dampens vibration, extending bearing life and reducing noise. The aluminum hub material provides excellent corrosion resistance and mechanical rigidity for continuous operation in harsh factory conditions. Maintenance intervals are extended due to the insert’s resistance to fatigue and environmental factors, eliminating the need for frequent realignments or replacements. The compact form factor and low mass reduce the load on motor bearings and permit higher dynamic acceleration and deceleration profiles.
System integration is streamlined by the coupling’s universal clamp hub interface, facilitating direct compatibility with standard motor and gearbox shaft diameters. Use cases include precision servo motors, stepper drives, gearboxes, and rotary encoders within automated assembly lines, packaging machinery, and CNC tooling centers. The robust design and broad operating temperature window make the 8ECR0020.1111C-0 particularly suitable for applications in automotive manufacturing, food processing, and material handling systems where reliability under thermal and mechanical stress is essential.
