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Aluminium rigid shaft coupling, 5/8 inch bore, 1.25 inch diameter, plain finish

Climax Metal Products

Climax Metal Products RC-062-A Conduit 5/8 in 1.25 in 281 in-lb

SKU CH-R7MD-2JF53

Rigid aluminium shaft coupling joins 5/8 in bores, handles 281 in-lb torque and 3,500 RPM

  • Aluminium construction resists corrosion
  • One-piece set-screw design simplifies installation
  • 5/8 in bore fits standard shafts
  • 281 in-lb torque rating handles demanding loads
  • 3,500 RPM limit suits high-speed applications

Aluminium rigid coupling for 5/8 inch shafts

This one-piece aluminium coupling joins two 5/8 inch shafts with a set-screw lock. It suits light-duty power transmission where precise alignment can be maintained and no keyway is required.

Torque limited to 281 in-lb and 3 500 RPM

The plain bore and single set screw transmit torque only through friction, so the rated 281 in-lb and 3 500 RPM ceiling must not be exceeded. Shock loads or misalignment will reduce the practical limit further.

Plain-finish aluminium with 1.25 inch clearance

The 1.25 inch outside diameter and 1.25 inch clearance diameter leave a compact profile for tight assemblies. Plain finish offers no corrosion protection, so the coupling is best kept in dry, indoor environments.

How it compares

Measured against everything we stock in Electrical Conduit & Fittings, at today’s prices. Recalculated every night.

Price $13.99
Cheaper than about 67% of the 1,290 comparable items (median $28.99).

Specifications

Product
Brand nameCLIMAX METAL PRODUCTS

Questions about this item

Should I pick the 5/8 in bore or the 1 1/4 in outside diameter version?

This coupling has a fixed 5/8 in bore and a 1 1/4 in outside diameter; both dimensions belong to the same single part.

What does the 281 in-lb torque rating mean when the coupling is installed?

It is the maximum torque the coupling can transmit continuously without slipping or damaging the set screw connection.

How does the 5/16-18 set screw interface limit the coupling's performance?

The single 5/16-18 set screw secures the shaft and the 281 in-lb torque capacity assumes proper tightening on a 5/8 in shaft.

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