Rotor Clip DSH-42ST Pd External Retaining Ring 42mm

Product Description

The ROTOR CLIP DSH-42ST PD is an external retaining ring designed for 42 mm shaft diameters with a groove diameter of 39.5 mm. Made from spring steel with a plain finish, this DIN 471-compliant ring seats into a machined shaft groove to axially retain components such as bearings, gears, and pulleys. Ring thickness measures 1.20 mm with a tolerance of -0.06 mm, and groove diameter tolerance is -0.25 mm. The ring weighs approximately 0.01 pounds. It is installed and removed using standard retaining ring pliers and is suited for mechanical assembly applications across industrial, HVAC, and rotating equipment service work.

This retaining ring is used in applications requiring a secure external shaft retention method per DIN 471 metric standards. It is appropriate for residential and commercial mechanical assemblies where a 42 mm shaft is present, including pump shafts, motor shafts, and gearbox assemblies. The metric dimensioning and DIN 471 compliance make it a standard fit for European-specification equipment as well as domestically manufactured systems using metric fastening standards. ISO 13485:2015 compliance is noted for applicable quality system requirements.

Key Features

• DIN 471 and ISO 13485:2015 compliant external retaining ring
• 42 mm shaft diameter with 39.5 mm groove diameter
• Spring steel construction with plain finish for reliable retention force
• Ring thickness of 1.20 mm with tight tolerance of -0.06 mm
• Groove depth of 1.25 mm for positive axial seating
• Metric system of measurement for compatibility with DIN-spec equipment

Compatibility

Designed as an OEM-style external retaining ring replacement for mechanical assemblies with a 42 mm shaft diameter machined to DIN 471 groove specifications.

Installation Notes

Installation and removal require external retaining ring pliers sized for the ring diameter; using improper tools risks ring distortion or ejection under tension. Ensure the shaft groove is clean and free of burrs before seating the ring. De-energize and lock out any rotating equipment before servicing components retained by this ring. Follow applicable machinery safety standards and the equipment manufacturer's assembly procedures.