World's First Climate Tech Platform | Free Delivery in India | Global Shipping

Become Seller

For Bulk Enquiry: sales@envmart.com

Shopping Cart $0.00

Ruland Aluminium Flexible Shaft Coupler 31.75 mm Outside Diameter 12.7 mm Bore Size 44.45 mm Length Model FSR20-8-8-A

Free Delivery in India | Lowest Global Shipping Charges

Ruland Aluminium Flexible Shaft Coupler 31.75 mm Outside Diameter 12.7 mm Bore Size 44.45 mm Length Model FSR20-8-8-A

Name: Ruland Aluminium Flexible Shaft Coupler 31.75 mm Outside Diameter 12.7 mm Bore Size 44.45 mm Length Model FSR20-8-8-A
Brand: Ruland
SKU: 171667



Category Flexible Coupler Brand Ruland Condition New

Specifications

Country of Origin	United States
Screw Size	M6
Brand	Ruland
Material	Aluminium
Length	44.45mm
Model	FSR20-8-8-A
Maximum Speed	6000rpm
Number of Beams	6
Outside diameter	31.75mm
Maximum Operating Temperature	107°C
Minimum Operating Temperature	-40°C
Torque Rating	55.6Nm
Standards/Approvals	REACH, RoHS3, DIN 912 12.9
Bore Size A	12.7mm
Moment of Inertia	11.7 x 10-6 kg/m²
Misalignment - Angular	3°
Misalignment - Parallel	0.38mm
Misalignment - Axial	0.25mm

Key Features

Constructed from durable aluminium material allowing operation between -40°C and 107°C.
Features 31.75 mm outside diameter and 12.7 mm bore sizes on both ends with a length of 44.45 mm.
Capable of maximum speed operation up to 6000 rpm, with a torque rating of 55.6 Nm.
Designed to accommodate up to 3° angular, 0.38 mm parallel, and 0.25 mm axial misalignment.
Includes 6 beams and uses M6 screws for secure shaft attachment in the screw style.
Approved to standards including REACH, RoHS3, and DIN 912 12.9.
Suitable for industrial applications such as encoders, stepper motors, robotics, servo systems, pumps, and valves.

Product Description

Ruland FSR20-8-8-A Aluminium Flexible Shaft Coupler features a torsionally rigid one-piece construction specifically designed to perform under conditions requiring higher speeds, greater misalignment, and limited lubrication where other couplings may fail. This screw-style coupler has a 31.75 mm outside diameter and 12.7 mm bore sizes on both ends, with an overall length of 44.45 mm. Its aluminium construction ensures lightweight endurance and effective performance across a temperature range from -40°C up to 107°C.

The coupler supports a maximum operating speed of 6000 rpm and a torque capacity of 55.6 Nm, making it suitable for demanding mechanical power transmission applications. It features 6 beams providing flexibility and strength while accommodating misalignment limits of up to 3° angular, 0.38 mm parallel, and 0.25 mm axial without compromising performance or lifespan.

Assembly is facilitated by M6 screws with a screw fixing style ensuring secure attachment to shafts. The coupling’s design eliminates mechanical joints and possible failure points by manufacturing it as a single integrated piece. It operates without lubrication, suitable for both high and low-speed reversible operations.

This coupling aligns with industry standards such as REACH, RoHS3, and DIN 912 12.9 for quality and safety compliance. Typical applications include encoders, stepper motors, robotics, measuring instruments, servo systems, pumps, valves, and fans across industrial, laboratory, manufacturing, and robotics fields.

Durable aluminium material construction suitable for varied temperature environments. High precision coupling with capacity for multiple types of misalignment. Torsionally rigid design for stable power transmission with zero backlash.

Single-piece manufacturing to eliminate potential failure points. Suitable for diverse industrial use cases including robotics and fluid power systems. Compliance with key international standards and approvals. Efficient screw-style fixing ensures secure installation on shafts.

This flexible shaft coupler is a reliable solution for precision and performance in mechanical power transmission tasks. Discover more industrial-grade couplings and power transmission components at EnvMart for your robust engineering requirements.

Explore more products in our Flexible Coupler category.