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Ruland Aluminium Flexible Shaft Coupler 12.7 mm OD, 3 mm Bore, 19.1 mm Length, Screw Style PSMR13-3-3-A

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Ruland Aluminium Flexible Shaft Coupler 12.7 mm OD, 3 mm Bore, 19.1 mm Length, Screw Style PSMR13-3-3-A

Name: Ruland Aluminium Flexible Shaft Coupler 12.7 mm OD, 3 mm Bore, 19.1 mm Length, Screw Style PSMR13-3-3-A
Brand: Ruland
SKU: 89260
Price: 42.25 USD
Availability: InStock

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Category Mechanical Power Transmission Coupler Brand Ruland Condition New

Specifications

Country of Origin	United States
Screw Size	M2
Brand	Ruland
Material	Aluminium
Length	19.1mm
Model	PSMR13-3-3-A
Maximum Speed	6000rpm
Number of Beams	4
Outside diameter	12.7mm
Maximum Operating Temperature	107°C
Minimum Operating Temperature	-40°C
Torque Rating	0.92Nm
Standards/Approvals	RoHS3, DIN 912 12.9, REACH
Bore Size A	3mm
Moment of Inertia	0.117 x 10-6 kg/m²
Misalignment - Angular	3°
Misalignment - Parallel	0.2mm
Misalignment - Axial	0.13mm

Key Features

Flexible shaft coupler made from high-quality aluminium for durability and strength.
12.7 mm outside diameter and 19.1 mm length suitable for a range of industrial applications.
Designed for maximum speed up to 6000 rpm and torque rating of 0.92 Nm.
Supports angular misalignment up to 3°, parallel misalignment up to 0.2 mm, and axial up to 0.13 mm.
Zero backlash and torsionally rigid one-piece construction enhances performance in precision systems.
Suitable for encoders, stepper motors, robotics, measuring instruments, pumps, valves, and fans.
No lubrication required, and compatible with both high and low speed operation, including reversible setups.

Product Description

Ruland PSMR13-3-3-A Aluminium Flexible Shaft Coupler is an innovative solution for mechanical power transmission, engineered to provide constant velocity and high torque transfer in demanding industrial and laboratory environments. Featuring a 12.7 mm outside diameter and a 19.1 mm length, this coupler is crafted from robust aluminium, ensuring longevity and reliability in applications with high speed and limited lubrication requirements.

With dual 3 mm bore sizes (A and B), the PSMR13-3-3-A is optimized for precise shaft connections in equipment such as encoders, stepper motors, robotics, precision measuring instruments, servo systems, pumps, valves, and fans. Its screw style fixing uses M2 socket head cap screws, providing a secure and maintenance-free connection without the need for lubrication.

This coupler is capable of supporting a maximum speed of 6000 rpm and a torque rating up to 0.92 Nm, making it ideal for both high and low speed, reversible operations. The torsionally rigid, one-piece construction eliminates mechanical joints and potential failure points, ensuring performance stability and zero backlash. Axial, parallel, and angular misalignments are accommodated up to 0.13 mm, 0.2 mm, and 3° respectively, thus offering flexibility in installation and use.

Flexible one-piece design made from high-grade aluminium. Dual 3 mm bore sizes and four beams for enhanced coupling capability. Accommodates significant misalignment; maintains performance under variable conditions. Complies with RoHS3, DIN 912 12.9, and REACH standards for industrial assurance.

Operating temperature range from -40°C to 107°C supports robust field use. Moment of inertia of 0.117 x 10-6 kg/m², suitable for precision drives.

Common industrial applications include automation, robotics, test and measurement, manufacturing equipment, and laboratory tools. The PSMR13-3-3-A is particularly valued where zero-backlash, high speed, and reliable transmission are required.

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