SKF HMSA10 RG Radial Shaft Seal

SKF HMSA10 RG radial shaft seal, CR variant, sized 130 × 160 × 15 mm, is a nitrile rubber lip seal designed for oil- or grease-lubricated machinery. The HMSA10 design uses RG lip material (NBR) developed by SKF for HMSA10 seals and includes an internal garter spring to maintain lip preload as the shaft rotates. Featuring a single sealing lip, it fits a 130 mm shaft diameter and a 160 mm housing bore, with a 15 mm wide sealing edge that helps retain sealing performance under typical speeds and loads. The seal is intended to seal between rotating shafts and housings or between components in relative motion, preventing lubricant leakage while accommodating motion in mechanical assemblies. The CR prefix in the product designation indicates a variant within the HMSA10 RG family found in SKF catalogs, reflecting the same geometry and lip material across this seal line. For best results, ensure clean mating surfaces, correct installation orientation, and proper seating to sustain lip contact and long-term sealing reliability in equipment such as gearboxes, pumps, and other rotating assemblies requiring a robust radial shaft seal.