Product Description
The R+W MK1 miniature bellows coupling is a compact, high-precision coupling designed for backlash-free torque transmission in light-duty motion control and instrumentation applications. Featuring a metal bellows and radial set screws design, the MK1 provides excellent torsional stiffness, low rotational inertia and reliable compensation of angular, radial and axial shaft misalignment. Its lightweight, maintenance-free construction makes it ideal for encoders, small servo drives, measuring equipment, laboratory devices and other applications requiring accurate positioning and smooth power transmission.
| Type | Complete coupling |
| Series / Model | MK1 |
| Shaft Coupling Type | Precision miniature bellows coupling |
| Bore Size | 2mm each side |
| Bore Type | Pilot bore |
| Max Bore | 9mm each side |
| Outside Diameter | 15mm |
| Overall Length | 20mm |
| Nominal Torque | 0.5Nm |
| Shaft Misalignment Type | Parallel, Angular, Axial |
| Max Misalignment | 0.4mm axial; 0.15mm lateral; 1° angular. |
| Operating Temperature Range | -30°C to 100°C |
| Material | Aluminium hubs, stainless steel bellows |
| Brand | R+W |
| Unit | Each |