Ruland, 22.2 mm OD 8 mm, 27 mm Length 7 mm Beam Coupling

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SGD78.51

(exc. GST)

SGD85.58

(inc. GST)

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RS Stock No.:
603-667
Mfr. Part No.:
PSMR22-8-7-A
Manufacturer:
Ruland
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Brand

Ruland

Product Type

Beam Coupling

Outside Diameter

22.2 mm

Length

27mm

Maximum Speed

6000rpm

Torque Rating

1.76Nm

Moment of Inertia

1.639 x 10-6 kg/m²

Number of Beams

4

Misalignment - Angular

3.0°

Misalignment - Parallel

0.20mm

Style

Set Screw

Misalignment - Axial

0.13mm

Material

7075-T651 Extruded Drawn Aluminium Bar

Minimum Operating Temperature

-40°F

Bore Size A

8mm

Bore Size B

7mm

Maximum Operating Temperature

225°F

Standards/Approvals

RoHS3, REACH, DIN 912 12.9

Screw Size

M4

COO (Country of Origin):
US
The Ruland Four beam coupling is a sophisticated solution designed to ensure precision and reliability in mechanical connections. Constructed from a single piece of 7075 aluminum, it effectively combines lightweight properties with exceptional torque capacity, setting performance benchmarks in high-speed applications. This coupling is engineered for zero-backlash functionality, ensuring that it maintains accurate rotational alignment under varying load and speed conditions. With a robust construction that includes four beams and a balanced design, it excels in demanding environments while reducing vibration and enhancing overall system efficiency. Capable of sustaining high rotational speeds up to 6,000 RPM, this coupling has been meticulously crafted to meet strict quality standards, including RoHS3 and REACH compliance, making it an excellent choice for modern manufacturing needs.

Lightweight aluminum material reduces inertia in dynamic applications

Zero-backlash design enhances precision and performance

Balanced construction minimizes vibration at high speeds

Manufactured under strict controls for consistent quality

Compatible with metric hardware to simplify installation

Suitable for both angular and parallel misalignment scenarios

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