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Aluminium flexible beam coupling with six beams and dual clamp hubs

Ruland Manufacturing

Ruland Manufacturing FCR24-12-6-A Coupling, 6 Beam Clamp, Bore 3/4 x 3/8 In

SKU CH-W6PV-TKM56

A 6-beam aluminium clamp coupling joining ¾ in and ⅜ in shafts, rated 80 in-lb torque at 6,000 RPM with 3° angular and 0.03 in parallel misalignment capacity

  • 6-beam flexible design absorbs angular misalignment up to 3 degrees
  • Dual clamp bores 3/4 in and 3/8 in fit different shaft sizes
  • Aluminium body rated for 6,000 rpm maximum speed
  • Torque capacity 80 in-lb with 15.87 in-lb/deg torsional stiffness
  • Compact 2 1/4 in overall length saves installation space

Motion Control Coupling

The Ruland Manufacturing FCR24-12-6-A is a motion control coupling designed to connect two shafts while accommodating misalignment. It suits engineers and maintenance teams who need a precise, clamp-on connection for light-duty power transmission in inch-based machinery.

Replaces Rigid or Single-Beam Types

This coupling upgrades from rigid couplings or lower-beam alternatives when angular misalignment up to 3 degrees, parallel offset up to 0.03 in, or axial motion up to .015 in must be absorbed. The jump is worth it when torsional stiffness of 15.87 in-lb/Deg and a maximum torque of 80 in-lb meet the application at speeds up to 6, 000 RPM.

Clamp-On Aluminium Hubs

The aluminium body uses a clamp-on locking method on both round bores, 3/4 in and 3/8 in, eliminating the need for keyways or set screws. Different bore sizes allow direct connection of mismatched shafts. The 1 1/2 in outside diameter and 2 1/4 in overall length fit compact layouts, while the 1.1 in length through bore ensures secure engagement. Buyers needing higher torque capacity or a larger bore range should look elsewhere.

Highlights

  • 6-beam flexible design absorbs angular misalignment up to 3 degrees
  • Dual clamp bores 3/4 in and 3/8 in fit different shaft sizes
  • Aluminium body rated for 6,000 rpm maximum speed
  • Torque capacity 80 in-lb with 15.87 in-lb/deg torsional stiffness
  • Compact 2 1/4 in overall length saves installation space

Specifications

No published specifications for this item yet.

Questions about this item

What shaft diameters does the 3/4 x 3/8 in bore fit?

One hub accepts a 3/4 in shaft and the other a 3/8 in shaft, both with round bores and clamp-on locking.

How do you install the clamp-on hubs without distorting the six-beam flexure?

Slide each hub onto its shaft, align the 2 1/4 in overall length, then torque the clamp screws evenly so the 0.03 in parallel offset limit is not exceeded.

When should the coupling be replaced based on wear indicators?

Replace it if axial play exceeds 0.015 in, angular misalignment goes beyond 3 degrees, or the 15.87 in-lb/deg torsional stiffness drops noticeably.

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