55 X 78 X 12 NITRILE OIL SEAL

APG stocks the MOS-055-078-012-TC, a Buna-N (Nitrile) Double Lip with Spring Oil Seal measuring a 55 mm inside diameter, a 78 mm outside diameter, and a height of 12 mm. An oil seal protects bearings by holding grease or oil in and keeping abrasives out. Source specification: Rubber Covered OD, Double Lip W/ Spring.

Buna-N (Nitrile) is specified here for most widely specified general-purpose sealing elastomer and economical choice for high-volume maintenance programs. The compound resists water, petroleum-based oils, and many alcohols.

Maintenance and OEM teams specify it across automotive, construction equipment, and hydraulic and pneumatic systems.

Stocked as MOS-055-078-012-TC and sold individually. Check the compound against your process media, pressure and temperature before committing to a design. Not finding the exact configuration you need? APG cross-references from prints, samples and competitor part numbers.