O-Ring - for 3.150 O.D. Axle Bearing

The STRANGE O-Ring for 3.150 O.D. Axle Bearing (Part Number A1020R) is a precision rubber seal component designed for use in axle assemblies where 3.150-inch outer diameter bearings are employed. This o-ring serves as a critical retention and sealing element in high-performance rear axle housings, particularly in applications requiring reliable bearing retention under dynamic load conditions.

O-rings in axle bearing assemblies function as both a mechanical lock and a contamination barrier. The 3.150 O.D. specification matches standard bearing sizes used in many performance and drag racing applications where precision fit is essential. The rubber compound provides elasticity necessary to maintain consistent contact pressure as the bearing assembly experiences thermal cycling and rotational stress. This particular STRANGE o-ring is engineered to withstand the high-speed rotational environments typical of rear axle systems without degradation or slippage.

This replacement o-ring is essential for builders and technicians assembling or rebuilding axle housings on performance vehicles, including street rods, drag racing platforms, and high-output street cars. It addresses the wear and compression that occurs in existing seals over time, restoring proper bearing retention in legacy or rebuilt assemblies. STRANGE is recognized as a manufacturer of axle components and drivetrain accessories for the performance automotive market.

Sold individually, this o-ring is a consumable service part suited for single-bearing replacement or complete axle assembly refreshes. Proper sizing ensures the seal seats correctly without over-compression, maintaining bearing preload integrity throughout the vehicle's service life.