Ruland, 57.2 mm OD, 78.2 mm Length 28 mm Flexible Coupling 18 mm

RS Stock No.:: 591-378
Mfr. Part No.:: MDCDK57-28-18-A
Manufacturer:: Ruland

Ruland, 57.2 mm OD, 78.2 mm Length 28 mm Flexible Coupling 18 mm

Subtotal (1 unit)*

€342.25

(exc. VAT)

€420.97

(inc. VAT)

Temporarily out of stock

Shipping from 13 April 2026

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Units	Per unit
1 +	€342.25

*price indicative

RS Stock No.:: 591-378
Mfr. Part No.:: MDCDK57-28-18-A
Manufacturer:: 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	Flexible Coupling
	Outside Diameter	57.2 mm
	Length	78.2mm
	Bore Size A	28mm
	Bore Size B	18mm
	Maximum Speed	10000rpm
	Hub Material	Aluminium
	Style	Clamp
	Membrane Material	302 Stainless Steel
	Minimum Operating Temperature	-40°C
	Series	MDCDK57-28-18-A
	Maximum Operating Temperature	93°C
	Standards/Approvals	ASTM B580 Type B, Class 2, DIN 912 12.9, MIL-A-8625 Type II, REACH, RoHS3
	Screw Size	M6

	Select all
	Brand Ruland
	Product Type Flexible Coupling
	Outside Diameter 57.2 mm
	Length 78.2mm
	Bore Size A 28mm
	Bore Size B 18mm
	Maximum Speed 10000rpm
	Hub Material Aluminium
	Style Clamp
	Membrane Material 302 Stainless Steel
	Minimum Operating Temperature -40°C
	Series MDCDK57-28-18-A
	Maximum Operating Temperature 93°C
	Standards/Approvals ASTM B580 Type B, Class 2, DIN 912 12.9, MIL-A-8625 Type II, REACH, RoHS3
	Screw Size M6

Datasheet - MDCDK57-28-18-A

COO (Country of Origin):: US

The Ruland Clamp double disc coupling designed to excel in precision applications. This coupling features a robust construction of anodized aluminum hubs and stainless steel disc springs, ensuring durability and reliability even in demanding conditions. Its unique design allows for individual disc movement to effectively accommodate various misalignments, making it ideally suited for high-speed operation up to 10,000 RPM. Lightweight and low inertial characteristics enhance performance in a range of applications, from semiconductor to machine tool systems. Manufactured under strict quality controls in Marlborough, MA, this coupling’s torsional rigidity and zero-backlash design ensure optimal positioning and reduced vibration, setting a new standard in coupling technology.

Perfect for applications requiring high-speed operation and reduced vibration

Engineered to accommodate angular, parallel, and axial misalignments for enhanced flexibility

Constructed from top-quality materials, ensuring compliance with environmental safety standards

The balanced design promotes longevity and reliability in demanding conditions

Ruland, 57.2 mm OD, 78.2 mm Length 28 mm Flexible Coupling 18 mm

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