Ruland, 28.6 mm OD 12 mm, 38.1 mm Length 8 mm Flexible Coupling

RS Stock No.:: 604-124
Mfr. Part No.:: PCMR29-12-8-A
Manufacturer:: Ruland

Ruland, 28.6 mm OD 12 mm, 38.1 mm Length 8 mm Flexible Coupling

Subtotal (1 unit)*

€77.16

(exc. VAT)

€94.91

(inc. VAT)

Temporarily out of stock

Shipping from 13 March 2026

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Units	Per unit
1 +	€77.16

*price indicative

RS Stock No.:: 604-124
Mfr. Part No.:: PCMR29-12-8-A
Manufacturer:: Ruland

Specifications

Technical data sheets

Legislation and Compliance

Product Details

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Select all	Attribute	Value
	Brand	Ruland
	Product Type	Flexible Coupling
	Outside Diameter	28.6 mm
	Length	38.1mm
	Maximum Speed	6000rpm
	Torque Rating	4.6Nm
	Moment of Inertia	6.349 x 10-6 kg/m²
	Misalignment - Angular	3.0°
	Number of Beams	4
	Misalignment - Parallel	0.38mm
	Style	Clamp
	Misalignment - Axial	0.25mm
	Minimum Operating Temperature	-40°C
	Bore Size A	12mm
	Bore Size B	8mm
	Material	7075-T651 Extruded Drawn Aluminium Bar
	Series	PCMR29
	Maximum Operating Temperature	107°C
	Standards/Approvals	RoHS3, REACH, DIN 912 12.9
	Screw Size	M4

	Select all
	Brand Ruland
	Product Type Flexible Coupling
	Outside Diameter 28.6 mm
	Length 38.1mm
	Maximum Speed 6000rpm
	Torque Rating 4.6Nm
	Moment of Inertia 6.349 x 10-6 kg/m²
	Misalignment - Angular 3.0°
	Number of Beams 4
	Misalignment - Parallel 0.38mm
	Style Clamp
	Misalignment - Axial 0.25mm
	Minimum Operating Temperature -40°C
	Bore Size A 12mm
	Bore Size B 8mm
	Material 7075-T651 Extruded Drawn Aluminium Bar
	Series PCMR29
	Maximum Operating Temperature 107°C
	Standards/Approvals RoHS3, REACH, DIN 912 12.9
	Screw Size M4

Datasheet - PCMR29-12-8-A

COO (Country of Origin):: US

The Ruland Four beam coupling offers an innovative solution for connecting shafts with precision and efficiency. Excellent for applications requiring high torque capacity and minimal backlash, this coupling is engineered from a single piece of robust aluminum, providing both durability and lightweight characteristics. The design features two sets of spiral cuts, promoting superior performance while maintaining high speeds of up to 6,000 RPM. This product epitomizes the balance of strength and agility, making it ideal for varied engineering applications. Manufactured under strict controls in the USA, it excels in environments demanding reliability and stringent compliance.

Clamp style design ensures easy installation and secure fastening

Constructed from 7075 aluminum for lightweight yet sturdy performance

Zero-backlash design reduces system vibration, enhancing operational stability

Balanced construction helps maintain performance at high speeds

RoHS3 and REACH compliant, ensuring environmental safety

Ruland, 28.6 mm OD 12 mm, 38.1 mm Length 8 mm Flexible Coupling

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