ManufacturerR+W Germany
BKL-2
R+W BKL zero-backlash bellows coupling - size 2 with rated torque 2 Nm.
Rated torque and overload
Rated torque TKN: 2 Nm. Brief overloads up to 1.5x rated torque acceptable - not a continuous rating.
Specifications
| Parameter | Value |
|---|---|
| Size | 2 |
| Rated torque TKN | 2 Nm |
| Overall length A-2 | 30 mm |
| Outside diameter B | 25 mm |
| Fit length C | 10 mm |
| Bore D1/D2 H7 | 4-12.7 mm |
| Fastening screw ISO 4762 | M3 |
| Fastening-screw tightening torque | 2.3 Nm |
| Distance between centerlines F | 8 mm |
| Distance G | 4 mm |
| Hub material | aluminium |
Ordering example
BKL 80 26 22 XX
- Model
- Special designation, e.g. anodized hubs
- Size
- Bore D1 H7
- Bore D2 H7
- XX for custom features/special requirements
Technical highlights
- Temperature range: -30 deg C to +100 deg C (-22 deg F to +212 deg F)
- Backlash: absolutely backlash-free due to friction clamped connection
- Service life: infinite and maintenance-free if technical ratings are not exceeded
- Hub/shaft connection tolerance: 0.01-0.05 mm
- Bellows: highly flexible high-grade stainless steel
- Speeds: up to 10,000 rpm; above 10,000 rpm with finely balanced version
- Custom designs: varied tolerances, keyways, non-standard materials, bellows and ATEX designs available upon request
- Properties: economical, low moment of inertia, easy to mount
- Contact Golden Bearing Company to confirm supply for your requirement.
Selection notes
- Rated torque (TKN) values match R+W catalogue data for this size.
- Brief overloads up to 1.5x rated torque are acceptable per manufacturer data - this is not a continuous duty rating.
- Weight, moment of inertia, torsional stiffness and misalignment ratings are available on request for engineering selection.
Further technical data
Contact Golden Bearing Company for model selection, application guidance and detailed technical information including weight, inertia, stiffness and misalignment ratings for BKL-2.
Request an Engineering Quote
Share shaft bore, speed, torque duty and ordering designation for BKL-2. Golden Bearing Company is a dealer/stockist for R+W Germany couplings and torque limiters.