Ruland, 38.1 mm OD 18 mm, 57.2 mm Length 12 mm Flexible Beam Coupling
- RS Stock No.:
- 591-640
- Mfr. Part No.:
- FSMR38-18-12-SS
- Brand:
- Ruland
Subtotal (1 unit)*
$634.73
(exc. GST)
$698.20
(inc. GST)
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- Shipping from 06 April 2026
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Units | Per unit |
|---|---|
| 1 + | $634.73 |
*price indicative
- RS Stock No.:
- 591-640
- Mfr. Part No.:
- FSMR38-18-12-SS
- Brand:
- Ruland
Specifications
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 | Flexible Beam Coupling | |
| Outside Diameter | 38.1 mm | |
| Length | 57.2mm | |
| Maximum Speed | 6000rpm | |
| Torque Rating | 16.38Nm | |
| Moment of Inertia | 83.407 x 10-6 kg/m² | |
| Number of Beams | 6 | |
| Misalignment - Angular | 3.0° | |
| Misalignment - Parallel | 0.76mm | |
| Style | Set Screw | |
| Misalignment - Axial | 0.38mm | |
| Bore Size A | 18mm | |
| Material | 303 Stainless Steel | |
| Minimum Operating Temperature | -40°C | |
| Bore Size B | 12mm | |
| Maximum Operating Temperature | 176°C | |
| Series | FSMR38 | |
| Standards/Approvals | DIN 912 12.9, REACH, RoHS3 | |
| Screw Size | M6 | |
| Select all | ||
|---|---|---|
Brand Ruland | ||
Product Type Flexible Beam Coupling | ||
Outside Diameter 38.1 mm | ||
Length 57.2mm | ||
Maximum Speed 6000rpm | ||
Torque Rating 16.38Nm | ||
Moment of Inertia 83.407 x 10-6 kg/m² | ||
Number of Beams 6 | ||
Misalignment - Angular 3.0° | ||
Misalignment - Parallel 0.76mm | ||
Style Set Screw | ||
Misalignment - Axial 0.38mm | ||
Bore Size A 18mm | ||
Material 303 Stainless Steel | ||
Minimum Operating Temperature -40°C | ||
Bore Size B 12mm | ||
Maximum Operating Temperature 176°C | ||
Series FSMR38 | ||
Standards/Approvals DIN 912 12.9, REACH, RoHS3 | ||
Screw Size M6 | ||
- COO (Country of Origin):
- US
The Ruland Six beam coupling stands out in precision engineering, designed for optimal performance in light-duty power transmission applications. This coupling is notable for its set screw style and is fabricated from high-quality 303 stainless steel, ensuring durability and resistance to wear. Machined from a single piece of material, it features a balanced design that minimises vibration while supporting high speeds of up to 6,000 RPM. The advanced design includes three spiral cuts for enhanced torque capacity, making it ideal for connecting servo motors to lead screws without introducing backlash. With stringent manufacturing controls in place, this product guarantees reliability and compliance with rigorous standards, making it a dependable choice for any engineering project.
Engineered with zero-backlash capabilities for precise operation
Capable of supporting angular and parallel misalignment parameters
Utilises a robust alloy steel set screw for secure fastening
Offers a significant torque capacity with a unique torsional stiffness
Manufactured in the USA with materials sourced exclusively from North American mills
Temperature tolerant, functioning effectively across a wide range of conditions
Designed for easy installation with clear instructions provided
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