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Small silver aluminium clamp coupling with two bores

Ruland Manufacturing

Ruland Manufacturing MotionControl Coupling MWC25-3/8"-6MM-A 25mm 30mm

SKU CH-EJD1-WVTQB

Clamp-on motion-control coupling joins a 3/8 in bore to a 6 mm bore with 3° angular and 0.38 mm parallel misalignment capacity at up to 6,000 RPM

  • TypeBearings, V-belts & Power Transmission Equipment
  • ColorTransparent
  • Clamp-on locking secures shafts without keyways
  • Angular misalignment up to 3 degrees handled
  • Inch-to-metric bore connects 3/8 in and 6 mm shafts
  • 1 N-m torque capacity at 6000 RPM
  • 57 N-m/deg stiffness maintains precise motion control

MotionControl Coupling 25 mm

The Ruland MWC25 couples a 3/8 inch shaft to a 6 mm shaft using a clamp-style hub. It suits precision motion systems where inch-to-metric shaft connections are required and zero-backlash torque transmission is expected.

Torque capacity 3.1 N-m

Rated for 3.1 N-m maximum torque at speeds up to 6,000 RPM with torsional stiffness of 0.57 N-m/Deg. The four-beam design accommodates 3 degrees angular and 0.38 mm parallel misalignment while allowing 0.25 mm axial motion before binding occurs.

Aluminum clamp hubs 30 mm long

Machined aluminum body measures 25 mm outside diameter and 30 mm overall length with 14.2 mm through-bore engagement per side. Clamp-on locking secures round shafts without keyways, simplifying alignment on mixed-inch/metric drive lines. Proposition 65 chemical warning applies.

Highlights

  • Clamp-on locking secures shafts without keyways
  • Angular misalignment up to 3 degrees handled
  • Inch-to-metric bore connects 3/8 in and 6 mm shafts
  • 1 N-m torque capacity at 6000 RPM
  • 57 N-m/deg stiffness maintains precise motion control

Specifications

BrandRULAND
TypeBearings, V-belts & Power Transmission Equipment
ColorTransparent

Questions about this item

Will the 3/8 in bore fit the legacy motor shaft I already have?

The coupling accepts a 3/8 in bore on one side and a 6 mm bore on the other, so it joins an imperial shaft to a metric shaft directly.

How do I verify the 3 deg angular misalignment rating after installation?

Run the assembly up to 6,000 RPM and confirm smooth operation; the design allows up to 3 degrees angular and 0.38 mm parallel offset without vibration.

Does the box include the clamp screws for both bores?

The clamp-on locking mechanism is integral to the aluminum body; no separate fasteners are required.

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