Ruland, 2 in OD 21 mm, 3 in Length 21 mm Beam Coupling
- RS Stock No.:
- 801-670
- Mfr. Part No.:
- ROCMD51-21-21-AN
- Brand:
- Ruland
Image representative of range
Subtotal (1 unit)*
£242.92
(exc. VAT)
£291.50
(inc. VAT)
FREE delivery for orders over £60.00
Stocked by manufacturer
- Ready to ship from 22 July 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £242.92 |
*price indicative
- RS Stock No.:
- 801-670
- Mfr. Part No.:
- ROCMD51-21-21-AN
- Brand:
- Ruland
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Ruland | |
| Product Type | Beam Coupling | |
| Outside Diameter | 2in | |
| Length | 3in | |
| Maximum Speed | 6000rpm | |
| Torque Rating | 20.3nm | |
| Moment of Inertia | 112.835 x10⁻⁰⁶ kg-m² | |
| Number of Beams | 6 | |
| Misalignment - Angular | 6° | |
| Style | Clamp | |
| Misalignment - Parallel | 1.52mm | |
| Misalignment - Axial | 0.76mm | |
| Bore Size B | 21mm | |
| Bore Size A | 21mm | |
| Material | Aluminium | |
| Minimum Operating Temperature | -40°C | |
| Series | ROCMD | |
| Maximum Operating Temperature | 107°C | |
| Standards/Approvals | RoHS3 | |
| Screw Size | M6 | |
| Select all | ||
|---|---|---|
Brand Ruland | ||
Product Type Beam Coupling | ||
Outside Diameter 2in | ||
Length 3in | ||
Maximum Speed 6000rpm | ||
Torque Rating 20.3nm | ||
Moment of Inertia 112.835 x10⁻⁰⁶ kg-m² | ||
Number of Beams 6 | ||
Misalignment - Angular 6° | ||
Style Clamp | ||
Misalignment - Parallel 1.52mm | ||
Misalignment - Axial 0.76mm | ||
Bore Size B 21mm | ||
Bore Size A 21mm | ||
Material Aluminium | ||
Minimum Operating Temperature -40°C | ||
Series ROCMD | ||
Maximum Operating Temperature 107°C | ||
Standards/Approvals RoHS3 | ||
Screw Size M6 | ||
- COO (Country of Origin):
- US
The Ruland six beam coupling is designed to accommodate 21mm x 21mm bores while providing reliable torque transmission for various applications.
Manufactured from 7075 aluminium for enhanced lightweight properties
Increased misalignment capability due to the unique beam design
Machined from North American sourced material to ensure quality
Complies with RoHS3, REACH, and Conflict Minerals standards
Features a reference mark for shaft alignment and easier installation
Testing exceeds DIN 912 12.9 standards for maximum torque capacity
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