Rotor Clip SH-175ST Zd External Retaining Ring 1-3/4 in

Product Description

The ROTOR CLIP SH-175ST ZD is an external retaining ring designed to secure components onto a shaft by seating in a precision-machined groove. It fits a 1.75-inch shaft diameter and a 1.65-inch groove diameter. Manufactured from SAE 1060-1090 carbon steel, it carries a yellow zinc dichromate finish for corrosion resistance. With a hardness rating of 47-52 HRC, this ring is suited for moderate-to-heavy radial load applications where positive component retention is required. Machinists, maintenance technicians, and mechanical assemblers install this type of ring in drive assemblies, conveyor systems, pump shafts, and general industrial equipment.

This external retaining ring is used in shaft assemblies where a removable, low-profile fastening method is needed without threading or welding. The ring seats into a 0.068-inch-wide groove at 0.05-inch depth, providing a reliable shoulder to prevent axial movement of mounted components. Typical applications include motor shafts, gearbox assemblies, fan hubs, and rotating mechanical subassemblies found in industrial, HVAC, and pumping equipment. The zinc-plated finish makes it appropriate for mildly corrosive or outdoor-adjacent service environments.

Key Features

• Fits 1.75-inch shaft diameter with a 1.65-inch groove diameter
• SAE 1060-1090 carbon steel construction with yellow zinc dichromate finish
• Hardness of 47-52 HRC for reliable load retention
• Ring thickness of 0.062 inches with tight tolerance of plus or minus 0.003 inches
• Free outside diameter of 2.31 inches; free inside diameter of 1.618 inches
• Meets SAE 1060-1090 and UNS G10600-G10900 fastener standards

Compatibility

Designed as an OEM-style external retaining ring for shaft assemblies requiring a 1.75-inch shaft diameter and a 0.068-inch groove width. Confirm groove diameter, depth, and width specifications against the mating shaft before installation.

Installation Notes

External retaining rings of this type are installed and removed using snap ring pliers sized for external rings. Always shut down and de-energize the host equipment before servicing shaft assemblies. Inspect the groove for burrs or dimensional nonconformance before seating the ring to ensure full engagement. Do not reuse a ring that has been overstressed or shows visible distortion.