Ruland, 2.25 in OD 21 mm, 3.25 in Length 18 mm Beam Coupling

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MYR1,992.82

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RS Stock No.:
801-111
Mfr. Part No.:
ROCMD57-21-18-AN
Manufacturer:
Ruland
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Brand

Ruland

Product Type

Beam Coupling

Outside Diameter

2.25in

Length

3.25in

Maximum Speed

6000rpm

Torque Rating

23.16nm

Moment of Inertia

194.459 x10⁻⁰⁶ kg-m²

Number of Beams

6

Misalignment - Angular

6°

Misalignment - Parallel

1.52mm

Style

Clamp

Misalignment - Axial

0.76mm

Minimum Operating Temperature

-40°C

Bore Size A

21mm

Bore Size B

18mm

Material

Aluminium

Maximum Operating Temperature

107°C

Series

ROCMD

Standards/Approvals

RoHS3

Screw Size

M6

COO (Country of Origin):
US
The Ruland coupling is a six beam mechanism designed for optimal performance in torque transmission and misalignment accommodation, featuring dual bores of 21mm and 18mm.

Machined from a single piece of 7075 aluminium for durability and low inertia

Designed with increased space between beams for enhanced misalignment capacity

Meets stringent torque specifications, exceeding DIN 912 12.9 standards

Utilises metric hardware and RoHS3, REACH, and Conflict Minerals compliant materials

Manufactured under strict controls at a facility in Marlborough, MA

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