Climax Metal Products RC-137-S Rigid Coupling Ss

Product Description

The CLIMAX METAL PRODUCTS RC-137-S is a set screw rigid coupling designed to connect two shafts with a fixed, non-flexible connection. It features a 1-3/8 inch inside diameter bore, a 2-1/2 inch outside diameter, and an overall length of 4-1/2 inches. Constructed from stainless steel, it resists corrosion in wet or chemically active environments. Set screw fastening locks the coupling directly to each shaft without requiring a keyway, keeping installation straightforward. This coupling is well-suited for mechanical drive applications across HVAC, pump, and general industrial equipment service work.

Rigid couplings of this type are installed where precise shaft alignment is maintained and no flexibility or misalignment compensation is needed. The RC-137-S is appropriate for use on rotating equipment including fan shafts, pump drives, and motor-to-shaft connections in both commercial and industrial settings. Because it transmits torque without any flex element, shaft alignment must be verified before installation. Installers in HVAC, plumbing, and mechanical service trades will encounter this coupling on equipment requiring direct shaft-to-shaft power transmission.

Key Features

• Stainless steel construction provides corrosion resistance in demanding or wet service environments
• Set screw design secures coupling directly to shafts without a keyway requirement
• 1-3/8 inch inside diameter accommodates common mid-range shaft sizes
• 2-1/2 inch outside diameter with 4-1/2 inch length provides substantial contact area for secure shaft engagement
• Rigid one-piece design transmits full torque without flex or backlash

Compatibility

Designed as an OEM-style replacement or direct-fit rigid shaft coupling for rotating equipment with a 1-3/8 inch shaft diameter in HVAC, pump, and general mechanical drive applications.

Installation Notes

Installation should be performed by a qualified mechanical or HVAC technician. Disconnect and lock out all power to the drive system before handling any rotating shaft components. Shaft alignment must be confirmed to be within acceptable tolerance before tightening set screws, as rigid couplings do not compensate for angular or parallel misalignment. Follow applicable mechanical and electrical codes for the equipment type being serviced.