Golden Bearing Company
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Manufacturer R+W Germany
BKL
BKL
BKL-3
Availability
Confirm at quotation
R+W Germany · BKL · Zero-backlash bellows · BKL-3 · Dealer / Stockist
Size
3
Rated torque TKN
3 Nm
Bore D1/D2 H7
3-12.7 mm
Overall length A-2
32 mm
- Manufacturer
- R+W Germany
- Product Family
- BKL Bellows Couplings
- Series
- BKL
- Designation
- BKL-3
- Configuration
- BKL
R+W BKL-3 BKL bellows coupling - catalogue data for selection and quotation.
- Product Type
- Bellows coupling
- Industry
- Servo drives, precision automation
Why Source Through Golden Bearing Company
Authorised industrial distributor
Engineering Support
Duty review, bore selection, and application engineering assistance
Authorised Manufacturer Data
Specifications published exactly as manufacturer catalogue data
Technical Assistance
Configuration, interchangeability, and spare element guidance
Product Overview
R+W BKL-3 is a BKL zero-backlash metal bellows coupling size 3 with rated torque TKN 3 Nm and bore 3-12.7 mm. two clamping hubs concentrically mounted to flexible bellows
Commercial Identification
Authoritative procurement identifiers for ERP, RFQ, and purchase order entry. Copy values directly where shown.
- Manufacturer
- R+W Germany
- Product Family
- BKL Bellows Couplings
- Series
- BKL
- Designation
- BKL-3
- Configuration
- BKL
Selection Guidance
Engineering checkpoints when specifying R+W BKL-3.
Engineering Specifications
R+W catalogue values for BKL size 3. Parameters not tabulated are omitted rather than estimated.
Catalogue specifications
| Size | 3 |
|---|---|
| Rated torque TKN | 3 Nm |
| Overall length A-2 | 32 mm |
| Outside diameter B | 25 mm |
| Fit length C | 10 mm |
| Bore D1/D2 H7 | 3-12.7 mm |
| Fastening screw ISO 4762 | M3 |
| Fastening-screw tightening torque | 2.3 Nm |
| Distance between centerlines F | 8 mm |
| Distance G | 3.8 mm |
| Hub material | aluminium |
Dimensions
Mounting envelope dimensions from R+W BKL catalogue tables.
Rated torque TKN
3 Nm
Bore D1/D2 H7
3-12.7 mm
Overall length A-2
32 mm
| Overall length A-2 | 32 mm |
|---|---|
| Outside diameter B | 25 mm |
| Fit length C | 10 mm |
| Distance between centerlines F | 8 mm |
| Distance G | 3.8 mm |
R+W Catalogue Reference
Authoritative source for the engineering values published on this page.
Published data basis
Engineering values for R+W BKL-3 follow R+W BKL catalogue data. Weight, moment of inertia, torsional stiffness and misalignment ratings are available on request for engineering selection.
Applications
Typical R+W BKL zero-backlash bellows coupling applications for BKL-3.
Servo motor connections
Ball screw drives
Encoder shafts
Test equipment
Packaging automation
Ordering and Identification
R+W catalogue ordering context for BKL-3.
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
Dealer / stockist supply
Golden Bearing Company supplies R+W BKL couplings as dealer/stockist for R+W Germany in India - not as an authorised distributor.
Frequently Asked Questions
Engineering and procurement answers for specification review and quotation.
What is R+W BKL-3?
R+W BKL-3 is a BKL zero-backlash metal bellows coupling size 3 with rated torque TKN 3 Nm and bore 3-12.7 mm per R+W catalogue data.
What is the rated torque of R+W BKL-3?
Rated torque TKN for R+W BKL-3 is 3 Nm. Brief overloads up to 1.5x rated torque are acceptable per manufacturer data - this is not a continuous duty rating.
What are the dimensions of R+W BKL-3?
Catalogue dimensions for R+W BKL-3: overall length A-2 32 mm, outside diameter B 25 mm, fit length C 10 mm.
How do I order R+W BKL-3?
Ordering pattern: BKL 80 26 22 XX. Send shaft bore, torque duty and speed for dealer/stockist quotation review through Golden Bearing Company.
Request an Engineering Quote
Share R+W BKL-3 designation, shaft bore, torque duty and speed for dealer/stockist quotation review.