Overview
The Jakob D-63839 EKM 60 is a proven elastomer coupling designed for servo and motion control applications requiring backlash-free torque transmission. Rated for 60 Nm nominal torque, this coupling uses a plastic star element with involute-shaped teeth and high Shore hardness mounted between high-precision hubs. It combines reliable performance with low-cost maintenance, making it ideal for OEM equipment builders and retrofit applications.
Key Features
- Electrically insulating with resonance dampening and zero backlash
- Compensates for minor shaft misalignments and provides good vibration damping properties
- Backlash-free, non-positive shaft-hub connection ensures reliable torque transmission
- Simple installation using a single lateral clamping screw
- Pluggable elastomer element for quick replacement without full disassembly
Technical Specifications
The EKM 60 offers robust specifications for precision servo and control applications:
- Rated Torque: 60 Nm continuous
- Electrical Properties: Electrically isolating
- Backlash: Zero backlash design
- Hub Type: Lateral clamping hub with DIN 912 screw connection
- Elastomer Material: High Shore hardness plastic star element
- Operating Range: Suitable for industrial servo and motion control from -40°C to +150°C (standard aluminum hubs)
Typical Applications
The Jakob EKM 60 is widely used in:
- Servo motor coupling in machine tools and CNC equipment
- Industrial automation and motion control systems
- Precision gear drive shafts requiring electrical isolation
- OEM equipment where compact, low-backlash connections are critical
- High-speed spindle and encoder coupling (up to 20,000 rpm)
Compatibility & Replacements
Compatible With
- Servo motors with standard shaft diameters (hub bores customizable for application)
- Industrial motor and gearbox combinations requiring backlash-free transmission
- Encoder and spindle shaft applications
- General industrial automation drive systems
Replaces / Drop-In Replacement For
The Jakob D-63839 EKM 60 is the direct replacement for previous EKM 60 units. Alternative EKM series sizes are available for different torque requirements (EKM 19, EKM 31, EKM 63, EKM 100, etc.). For specific model cross-reference, verify with your system integrator or Jakob distributor.
Works With
- JAKOB servo coupling product line (EKM, EKM-VA stainless steel, EKH conical hub variants)
- All standard industrial servo motors and gear reducers
- Precision spindle and encoder systems
- High-speed drive applications up to 20,000 rpm
