Ruland, 25.4 mm OD 12 mm, 38.1 mm Length 12 mm Flexible Beam Coupling

View all Flexible Couplings

Subtotal (1 unit)*

MYR671.24

Add to Basket
Select or type quantity
Temporarily out of stock
  • Shipping from 11 March 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units
Per Unit
1 +MYR671.24

*price indicative

RS Stock No.:
592-648
Mfr. Part No.:
FSMR25-12-12-SS
Manufacturer:
Ruland
Find similar products by selecting one or more attributes.
Select all

Brand

Ruland

Product Type

Flexible Beam Coupling

Outside Diameter

25.4 mm

Length

38.1mm

Maximum Speed

6000rpm

Torque Rating

4.4Nm

Moment of Inertia

11.293 x 10-6 kg/m²

Number of Beams

6

Misalignment - Angular

3.0°

Misalignment - Parallel

0.38mm

Style

Set Screw

Misalignment - Axial

0.25mm

Bore Size A

12mm

Minimum Operating Temperature

-40°C

Material

303 Stainless Steel

Bore Size B

12mm

Series

FSMR25

Maximum Operating Temperature

176°C

Standards/Approvals

DIN 912 12.9, REACH, RoHS3

Screw Size

M5

COO (Country of Origin):
US
The Ruland Six beam coupling is expertly designed to deliver exceptional performance in light-duty power transmission applications. With a robust construction from a single piece of 303 stainless steel, this coupling ensures unmatched durability and strength. The advanced six beam design features two sets of spiral cuts, which significantly enhance torque capacity while reducing windup and vibration, even at speeds up to 6,000 RPM. Zero-backlash operation allows for seamless motion transfer, making it ideal for precision applications such as connecting servo motors to lead screws. Manufactured in the USA under stringent quality controls, this product meets RoHS3 and REACH compliance standards, assuring users of its safety and reliability in various environments.

Robust construction from a single piece of custom stainless steel

Enhanced torque capacity through a unique six beam design

Zero-backlash operation for precise motion control

Balanced design to minimise vibration at high speeds

Designed for easy installation with standard metric hardware

Exceeds DIN 912 12.9 standards for maximum torque capabilities

Lightweight design for versatile application in compact spaces

Compliant with international standards for safety and environmental requirements

Related links