Ruland, 2.25 in OD 21 mm, 3.25 in Length 20 mm Beam Coupling
- RS Stock No.:
- 801-114
- Mfr. Part No.:
- ROCMD57-21-20-AN
- Manufacturer:
- Ruland
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The image is for reference only, please refer to product details and specifications
Subtotal (1 unit)*
TWD14,413.00
(exc. GST)
TWD15,133.65
(inc. GST)
FREE delivery for orders over NT$1,300.00
Stocked by manufacturer
- Ready to ship from July 20, 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | TWD14,413.00 |
*price indicative
- RS Stock No.:
- 801-114
- Mfr. Part No.:
- ROCMD57-21-20-AN
- Manufacturer:
- Ruland
Specifications
Product overview and Technical data sheets
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 | 2.25in | |
| Length | 3.25in | |
| Maximum Speed | 6000rpm | |
| Torque Rating | 23.16nm | |
| Moment of Inertia | 194.257 x10⁻⁰⁶ kg-m² | |
| Number of Beams | 6 | |
| Misalignment - Angular | 6° | |
| Misalignment - Parallel | 1.52mm | |
| Style | Clamp | |
| Misalignment - Axial | 0.76mm | |
| Bore Size B | 20mm | |
| 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 2.25in | ||
Length 3.25in | ||
Maximum Speed 6000rpm | ||
Torque Rating 23.16nm | ||
Moment of Inertia 194.257 x10⁻⁰⁶ kg-m² | ||
Number of Beams 6 | ||
Misalignment - Angular 6° | ||
Misalignment - Parallel 1.52mm | ||
Style Clamp | ||
Misalignment - Axial 0.76mm | ||
Bore Size B 20mm | ||
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 offers robust performance with 21mm and 20mm bores. Designed for precise torque transfer, it is Ideal for applications requiring increased misalignment tolerance and lightweight construction.
Machined from a single piece of 7075 aluminium for low inertia and durability
Features two sets of spiral cuts for enhanced beam spacing and misalignment capacity
Designed with a reference mark for easy identification of the larger bore
Complies with RoHS3, REACH, and Conflict Minerals regulations
Related links
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