Ruland, 1.75 in OD 21 mm, 2.75 in Length 18 mm Beam Coupling
- RS Stock No.:
- 801-045
- Mfr. Part No.:
- ROCMD44-21-18-AN
- Brand:
- Ruland
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Subtotal (1 unit)*
£179.94
(exc. VAT)
£215.93
(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 + | £179.94 |
*price indicative
- RS Stock No.:
- 801-045
- Mfr. Part No.:
- ROCMD44-21-18-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 | 1.75in | |
| Length | 2.75in | |
| Maximum Speed | 6000rpm | |
| Torque Rating | 12.99nm | |
| Moment of Inertia | 62.360 x10⁻⁰⁶ kg-m² | |
| Number of Beams | 6 | |
| Misalignment - Angular | 6° | |
| Misalignment - Parallel | 1.4mm | |
| Style | Clamp | |
| Misalignment - Axial | 0.64mm | |
| Bore Size B | 18mm | |
| Minimum Operating Temperature | -40°C | |
| Material | Aluminium | |
| Bore Size A | 21mm | |
| Maximum Operating Temperature | 107°C | |
| Series | ROCMD | |
| Standards/Approvals | RoHS3 | |
| Screw Size | M6 | |
| Select all | ||
|---|---|---|
Brand Ruland | ||
Product Type Beam Coupling | ||
Outside Diameter 1.75in | ||
Length 2.75in | ||
Maximum Speed 6000rpm | ||
Torque Rating 12.99nm | ||
Moment of Inertia 62.360 x10⁻⁰⁶ kg-m² | ||
Number of Beams 6 | ||
Misalignment - Angular 6° | ||
Misalignment - Parallel 1.4mm | ||
Style Clamp | ||
Misalignment - Axial 0.64mm | ||
Bore Size B 18mm | ||
Minimum Operating Temperature -40°C | ||
Material Aluminium | ||
Bore Size A 21mm | ||
Maximum Operating Temperature 107°C | ||
Series ROCMD | ||
Standards/Approvals RoHS3 | ||
Screw Size M6 | ||
- COO (Country of Origin):
- US
The Ruland six beam coupling is designed for precision in transmitting torque while accommodating angular, parallel, and axial misalignment. It ensures efficient performance through robust construction and compliance with stringent industry standards.
Machined from 7075 aluminium, offering lightweight and low inertia characteristics
Meets DIN 912 12.9 standards for maximum torque capabilities
Features a reference mark for easy identification of bore sizes
Dynamic torque values of 6.5 Nm for reversing and 3.25 Nm for non-reversing applications
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