Product Description
The R+W BKL torsionally stiff bellows coupling combines backlash-free torque transmission with a compact, lightweight design for precision motion control applications. Engineered with a high-quality metal bellows and clamping hub connection, the BKL offers excellent torsional stiffness, low rotational inertia and reliable compensation of shaft misalignment while maintaining accurate positioning and repeatability. Ideal for servo motors, encoders, linear drives and automated machinery, the BKL delivers maintenance-free operation, high dynamic performance and long service life in space-constrained installations.
| Type | Complete coupling |
| Series / Model | BKL |
| Shaft Coupling Type | Precision bellows coupling |
| Bore Size | 12mm each side |
| Bore Type | Pilot bore |
| Max Bore | 32mm each side |
| Outside Diameter | 56mm |
| Overall Length | 68mm |
| Nominal Torque | 30Nm |
| Max Speed | 10,000 rpm |
| Shaft Misalignment Type | Parallel, Angular, Axial |
| Max Misalignment | 1mm axial; 0.2mm lateral; 1° angular. |
| Operating Temperature Range | -30°C to 100°C |
| Material | Aluminium hubs, stainless steel bellows |
| Brand | R+W |
| Unit | Each |