External Snap Ring, 2-7/8"

External Snap Ring, 2-7/8"

The 278-5100 External Snap Ring is a precision retaining ring designed to secure components on a shaft while allowing quick installation and removal when maintenance is needed. With a 2-7/8" shaft size compatibility, this external snap ring fits into a machined groove on the outside of a shaft to hold bearings, gears, pulleys, and other components firmly in position. Built for dependable retention in mechanical assemblies, it provides a simple but highly effective solution for preventing axial movement—because sometimes the only thing keeping a machine together is a small ring doing a very important job.

Country of Origin
Varies by production batch

Key Features / Specifications

• Model / Part Number: 278-5100
• Product Type: External snap ring / retaining ring
• Shaft Size Compatibility: 2-7/8 inch
• Ring Type: External (fits on the outside of a shaft)
• Function: Prevents axial movement of components on a shaft
• Installation: Installed into a machined groove on a shaft
• Tool Requirement: Typically installed with snap ring pliers
• Material: Spring steel construction for strength and elasticity
• Design: Maintains constant pressure within the groove for secure retention
• Applications: Shafts, bearings, gears, pulleys, and mechanical assemblies

Ideal For

• Securing bearings, gears, and pulleys on shafts
• Machinery repair and mechanical maintenance
• Industrial equipment and fabrication projects
• Situations requiring removable but secure shaft retention
• Anyone who appreciates the engineering truth that a tiny ring can keep an entire machine from wandering apart.