Ruland, 50.8 mm OD 25 mm, 58.7 mm Length Coupler 25 mm

RS Stock No.:: 174-7193
Mfr. Part No.:: MBC51-25-25-A
Brand:: Ruland

Ruland, 50.8 mm OD 25 mm, 58.7 mm Length Coupler 25 mm

Bulk discount available

Subtotal (1 unit)*

$351.19

(exc. GST)

$386.31

(inc. GST)

FREE delivery for orders over $60.00 ex GST

Temporarily out of stock

Shipping from 23 March 2026

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Units	Per unit
1 - 4	$351.19
5 - 9	$343.83
10 +	$333.26

*price indicative

RS Stock No.:: 174-7193
Mfr. Part No.:: MBC51-25-25-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	58.7mm
	Maximum Speed	10000rpm
	Torque Rating	45.2Nm
	Moment of Inertia	78.046 x 10-6 kg/m²
	Misalignment - Angular	2°
	Misalignment - Parallel	0.25mm
	Style	Clamp
	Hub Material	Aluminium
	Misalignment - Axial	0.5mm
	Bore Size A	25mm
	Bellows Material	Stainless Steel
	Minimum Operating Temperature	-40°C
	Bore Size B	25mm
	Maximum Operating Temperature	93°C
	Standards/Approvals	RoHS3, REACH, DIN 912 12.9
	Screw Size	M5

	Select all
	Brand Ruland
	Product Type Coupler
	Outside Diameter 50.8 mm
	Length 58.7mm
	Maximum Speed 10000rpm
	Torque Rating 45.2Nm
	Moment of Inertia 78.046 x 10-6 kg/m²
	Misalignment - Angular 2°
	Misalignment - Parallel 0.25mm
	Style Clamp
	Hub Material Aluminium
	Misalignment - Axial 0.5mm
	Bore Size A 25mm
	Bellows Material Stainless Steel
	Minimum Operating Temperature -40°C
	Bore Size B 25mm
	Maximum Operating Temperature 93°C
	Standards/Approvals RoHS3, REACH, DIN 912 12.9
	Screw Size M5

COO (Country of Origin):: US

Ruland Coupling

The Ruland bellows coupling has a 51mm OD and 58.7mm length with clamp fastening. This clamp is 25mm x 25mm bore coupling. This is readily accommodated by any combination of axial motion, angular and parallel misalignment. It comprises of two anodized aluminium hubs and stainless steel bellows. This bellow is able to flex while remaining rigid under torsional loads. Its balanced design reduces vibrations at high speed.

Features and Benefits

• Zero backlash

• Black-oiled alloy steel fasteners for strength and corrosion resistance

• Precision bellows coupling with excellent kinematic properties

• Maximum speed of 10,000rpm

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

• Service temperature ranges between -40°C and 93°C

• Low inertia coupling

• Lightweight

Applications

• Stepper and servo drives

• Encoders

• General purpose light-duty power transmission

Certifications

• REACH certification

• DIN 912 12.9