Ruland, 50.8 mm OD Elastomer, 61 mm Length Coupler Aluminium Zero Backlash

RS Stock No.:: 174-7224
Mfr. Part No.:: MJC51-12-A
Brand:: Ruland

Ruland, 50.8 mm OD Elastomer, 61 mm Length Coupler Aluminium Zero Backlash

Bulk discount available

Subtotal (1 unit)*

$137.81

(exc. GST)

$151.59

(inc. GST)

FREE delivery for orders over $60.00 ex GST

In Stock

Plus 1 unit(s) shipping from 02 February 2026
Plus 4 unit(s) shipping from 12 February 2026

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Units	Per unit
1 - 4	$137.81
5 - 9	$134.95
10 +	$130.81

*price indicative

RS Stock No.:: 174-7224
Mfr. Part No.:: MJC51-12-A
Brand:: Ruland

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Ruland
	Product Type	Coupler
	Outside Diameter	50.8 mm
	Length	61mm
	Maximum Speed	8000rpm
	Element Material	Elastomer
	Hub Material	Aluminium
	Style	Clamp
	Minimum Operating Temperature	-10°F
	Jaw Type	Zero Backlash
	Maximum Operating Temperature	180°F
	Series	MJC51
	Standards/Approvals	RoHS2, REACH, DIN 912 12.9
	Screw Size	M5

	Select all
	Brand Ruland
	Product Type Coupler
	Outside Diameter 50.8 mm
	Length 61mm
	Maximum Speed 8000rpm
	Element Material Elastomer
	Hub Material Aluminium
	Style Clamp
	Minimum Operating Temperature -10°F
	Jaw Type Zero Backlash
	Maximum Operating Temperature 180°F
	Series MJC51
	Standards/Approvals RoHS2, REACH, DIN 912 12.9
	Screw Size M5

COO (Country of Origin):: US

Ruland Coupling

The Ruland jaw coupling hub has a 51mm OD, 12mm bore and 58.7mm length with clamp fastening. This is readily accommodated by any combination of axial motion, angular and parallel misalignment. It comprises of a three-piece design consisting of two aluminium hubs and an elastomeric insert called the spider. This design allows a highly customizable coupling that easily combines clamp or set screw hubs. Its balanced design reduces vibrations at high speed.

Features and Benefits

• Zero backlash

• Hardware is metric and tested beyond DIN standard for high torque capabilities

• Maximum speed of 8000rpm

• Temperature ranges between -23°C and 82°C

• Low inertia coupling

• Lightweight

• Made from aluminium

Applications

• Stepper and servo drives

• Encoders

Certifications

• REACH certification

• Conflict Minerals compliant

• DIN 912 12.9

• ISO9001:2015