Ruland, 38.1 mm OD 18 mm, 57.2 mm Length 12 mm Flexible Beam Coupling

Subtotal (1 unit)*

MYR1,867.59

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 09 March 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per Unit
1 +MYR1,867.59

*price indicative

RS Stock No.:
591-340
Mfr. Part No.:
FCMR38-18-12-SS
Manufacturer:
Ruland
Find similar products by selecting one or more attributes.
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

Misalignment - Angular

3.0°

Number of Beams

6

Misalignment - Parallel

0.76mm

Style

Clamp

Misalignment - Axial

0.38mm

Bore Size B

12mm

Material

303 Stainless Steel

Minimum Operating Temperature

-40°F

Bore Size A

18mm

Series

FCMR38

Maximum Operating Temperature

350°F

Standards/Approvals

DIN 912 12.9, REACH, RoHS3

Screw Size

M6

COO (Country of Origin):
US
The Ruland Clamp style six beam coupling, crafted from robust 303 stainless steel, offers both durability and precision performance in a compact design. Perfectly suited for light-duty power transmission applications, this coupling features 18mm x 12mm bores and a superior length of 57.2mm, making it an ideal solution for connecting servo motors to lead screws. Its innovative design, including three spiral cuts on each beam, ensures zero backlash and enhances torque capacity while minimizing windup. The coupling is engineered to maintain high performance even at speeds of 6,000 RPM, allowing for smooth operation across various applications. With Nypatch anti-vibration hardware included, it guarantees secure and repeatable installations without galling, supporting a seamless experience in high-speed operations.

Includes anti-vibration hardware for enhanced stability

Provides a generous angular misalignment tolerance for flexible installation

Machined for consistent accurate shaft penetration specifications

Zero-backlash design optimises transmission efficiency

Complies with RoHS3 and REACH regulations for environmental safety

Manufactured in the USA under strict quality controls

Related links