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Carbon steel rigid shaft coupling, one-piece, 3 inch length

Climax Metal Products

Climax Metal Products RC-100 Rigid Shaft Coupling 3 in

SKU CH-8B7E-QHGH1

Carbon-steel rigid shaft coupling joins two 1 in round shafts, handles 750 in-lb torque at up to 3,500 RPM

  • Rigid one-piece carbon steel coupling handles 750 in-lb torque
  • Set-screw locking on 1 in round bores provides secure shaft connection
  • Rated for 3 500 RPM maximum speed suits high-speed drives
  • 3 in overall length fits standard spacing between shafts
  • 2 in outside diameter allows compact installation in tight spaces

Purpose and Application

The Climax Metal Products RC-100 is a one-piece rigid shaft coupling designed to join two round shafts of identical 1-inch diameter. It transmits up to 750 in-lb of torque at speeds reaching 3,500 RPM, making it suitable for inline power transmission in industrial machinery and automotive drivelines where zero backlash is required.

Fit and Limitations

This coupling suits maintenance teams and OEM builders who need a fixed, keyway-free connection between equal-sized shafts and have the 2-inch clearance diameter available. It will not work for applications requiring misalignment compensation, different bore sizes, keyway engagement, or torque capacity beyond the rated 750 in-lb.

Sustained Load Behaviour

Under continuous operation at the rated 3,500 RPM the carbon-steel body maintains rigid alignment without the wear or vibration that flexible elements introduce. Heat buildup remains minimal because there are no sliding or damping surfaces, so the coupling preserves its 750 in-lb torque rating over extended duty cycles without degradation.

Highlights

  • Rigid one-piece carbon steel coupling handles 750 in-lb torque
  • Set-screw locking on 1 in round bores provides secure shaft connection
  • Rated for 3 500 RPM maximum speed suits high-speed drives
  • 3 in overall length fits standard spacing between shafts
  • 2 in outside diameter allows compact installation in tight spaces

Specifications

BrandCLIMAX METAL PRODUCTS

Questions about this item

What shaft diameter do I need on both ends to fit the 1 in bore?

Both shafts must measure exactly 1 in diameter to match the coupling's 1 in round bores.

Will the 3,500 RPM limit and 750 in-lb torque rating suit my existing low-speed drive line?

Yes, the coupling is rated for up to 3,500 RPM and 750 in-lb, so it matches typical low-speed shafts within those limits.

How can I confirm the set screws are holding the 1 in shafts securely after installation?

Tighten the set screws against each 1 in shaft, then rotate by hand to feel zero backlash and verify no axial movement.

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