Ruland, 50.8 mm OD 18 mm, 61.3 mm Length Flexible Coupling 18 mm
- RS Stock No.:
- 591-913
- Mfr. Part No.:
- MBCK51-18-18-A
- Brand:
- Ruland
Subtotal (1 unit)*
$425.76
(exc. GST)
$468.34
(inc. GST)
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- Shipping from 06 April 2026
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Units | Per unit |
|---|---|
| 1 + | $425.76 |
*price indicative
- RS Stock No.:
- 591-913
- Mfr. Part No.:
- MBCK51-18-18-A
- 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 Coupling | |
| Outside Diameter | 50.8 mm | |
| Length | 61.3mm | |
| Maximum Speed | 10000rpm | |
| Torque Rating | 45.2Nm | |
| Moment of Inertia | 8.117 x 10-5 kg/m² | |
| Misalignment - Angular | 2.0° | |
| Misalignment - Parallel | 0.25mm | |
| Hub Material | Aluminium | |
| Misalignment - Axial | 0.50mm | |
| Minimum Operating Temperature | -40°F | |
| Bore Size B | 18mm | |
| Bore Size A | 18mm | |
| Bellows Material | 321 Stainless Steel | |
| Series | MBCK51 | |
| Maximum Operating Temperature | 200°F | |
| Standards/Approvals | ISO 9001:2015, REACH, RoHS3, DIN 912 12.9 | |
| Screw Size | M5 | |
| Select all | ||
|---|---|---|
Brand Ruland | ||
Product Type Flexible Coupling | ||
Outside Diameter 50.8 mm | ||
Length 61.3mm | ||
Maximum Speed 10000rpm | ||
Torque Rating 45.2Nm | ||
Moment of Inertia 8.117 x 10-5 kg/m² | ||
Misalignment - Angular 2.0° | ||
Misalignment - Parallel 0.25mm | ||
Hub Material Aluminium | ||
Misalignment - Axial 0.50mm | ||
Minimum Operating Temperature -40°F | ||
Bore Size B 18mm | ||
Bore Size A 18mm | ||
Bellows Material 321 Stainless Steel | ||
Series MBCK51 | ||
Maximum Operating Temperature 200°F | ||
Standards/Approvals ISO 9001:2015, REACH, RoHS3, DIN 912 12.9 | ||
Screw Size M5 | ||
- COO (Country of Origin):
- US
The Ruland Bellows Coupling designed for high performance applications requiring precise alignment and exceptional torque transmission. Crafted from anodized aluminium and stainless steel, this coupling features a lightweight construction that minimizes inertia while ensuring robust durability. Its advanced engineering allows for maximum operational speeds of up to 10,000 RPM, maintaining exceptional balance and reducing vibration. The design, characterised by fewer convolutions, provides outstanding torsional stiffness, making it indispensable for precision positioning tasks. All aspects of this coupling, from the carefully selected materials to the meticulous manufacturing process in an ISO certified facility, reflect a commitment to quality that ensures reliable and efficient performance in demanding environments.
Engineered for high stiffness ideal for precision applications
Balanced design reduces vibrations during high speed operations
Accommodates all forms of misalignment for diverse installation scenarios
Machined from premium North American sourced materials for reliability
Designed to meet stringent torque performance criteria
Lightweight design reduces load on drive systems
Complies with RoHS3 REACH and Conflict Minerals regulations
Includes metric hardware for compatibility with industry standards
Tested beyond DIN 912 12.9 standards for torque capabilities
Offers zero backlash performance for precision motion control
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