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Aluminium motion-control coupling 25.4 mm OD 31.8 mm long clamp 10 mm x 6 mm bores

Ruland Manufacturing

Ruland Manufacturing PCMR25-10-6-A Motion Control Coupling 10mm x 6mm

SKU CH-DDWR-7YGEY

Clamp-style aluminium coupling joins 10 mm and 6 mm shafts, handles 3° angular and 0.38 mm parallel misalignment at up to 6000 RPM

  • Product typeCouplings, Collars & Adapters
  • Handles 3° angular misalignment for flexible shaft alignment
  • Transmits up to 3.39 N·m torque at 6 000 RPM
  • Clamp-on locking secures 10 mm and 6 mm shafts without keyways
  • 4-beam aluminium design gives 0.56 N·m/deg torsional stiffness
  • Compact 25.4 mm OD fits tight machine envelopes

10 mm × 6 mm Motion Control Coupling

The Ruland PCMR25-10-6-A is an aluminum clamp-style coupling designed to connect a 10 mm shaft to a 6 mm shaft. It suits precision motion-control systems where different bore sizes must be joined in metric equipment.

Capacity and headroom

Rated for 3.39 N-m maximum torque and 6,000 RPM maximum speed, it handles moderate loads in small drives. Torsional stiffness is 0.56 N-m/Deg, with 3 degrees angular misalignment, 0.38 mm parallel offset and 0.25 mm axial motion capacity before binding occurs.

Clamp-on locking and four-beam design

The clamp-on bore locking secures each shaft without keyways, while the four-beam construction provides the stated misalignment allowances. California Proposition 65 warnings apply for cancer and reproductive-harm chemicals present in the material.

How it compares

Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.

Price $40.99
Pricier than about 56% of the 693 comparable items (median $35.99).

Specifications

Product
Product typeCouplings, Collars & Adapters

Questions about this item

Will the 10 mm and 6 mm clamp bores align with my existing metric shafts without adapters?

Yes, the coupling is machined for 10 mm and 6 mm round bores with clamp-on locking, so each shaft seats directly without additional sleeves.

How can I verify the coupling runs true after installation?

Spin the assembly up to 6,000 RPM and check for vibration; the design allows 3 degrees angular, 0.38 mm parallel and 0.25 mm axial misalignment while delivering 0.56 N-m per degree torsional stiffness.

Does the package include mounting hardware or only the coupling itself?

The coupling is supplied complete with integral clamp screws; no separate fasteners, keys or lubricants are required.

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