Product Description
The R+W MK4 miniature bellows coupling is engineered for applications requiring a compact coupling with a secure shaft connection and exceptional positioning accuracy. Featuring a high-quality metal bellows construction, the MK4 provides backlash-free torque transmission, high torsional stiffness and reliable compensation of angular, radial and axial misalignment. Its robust yet lightweight design helps reduce system loads while delivering smooth, maintenance-free performance in robotics, automation systems, linear drives and precision manufacturing equipment.
| Type | Complete coupling |
| Series / Model | MK4 |
| Shaft Coupling Type | Precision miniature bellows coupling |
| Bore Size | 3mm each side |
| Bore Type | Pilot bore |
| Max Bore | 16mm each side |
| Outside Diameter | 25mm |
| Overall Length | 33mm |
| Nominal Torque | 2.0Nm |
| Shaft Misalignment Type | Parallel, Angular, Axial |
| Max Misalignment | 0.6mm axial; 0.2mm lateral; 1.5° angular. |
| Operating Temperature Range | -30°C to 100°C |
| Material | Aluminium hubs, stainless steel bellows, high strength plastic tapered male segment |
| Brand | R+W |
| Unit | Each |