OMA-2810/2815 Shaft Security Ring - OS74004060 by O.S. Engine  [OS74004060]

Retention ring for OMA-2810/2815 motors

The O.S. Engine OS74004060 security ring is a purpose-built retention piece for use with OMA-2810 and OMA-2815 brushless motors. As a scale RC component it keeps the motor shaft axially positioned so mounted parts seat correctly during running.

Intended role: the ring is a simple mechanical stop that reduces end-play and unintended axial movement of the motor shaft, helping preserve pinion engagement and drivetrain consistency during setup and service.

Installation notes: seat the ring into the shaft groove specified for OMA-2810/2815 motors, verify axial seating and free rotation, and include it in routine motor inspections. The design suits model electric workshops for tasks such as gear changes and bearing checks.