IR 55x60x25-XL INA Inner ring

Inner rings IR are made from hardened rolling bearing steel and have precision machined raceways. Chamfers on the end faces facilitate the matching of the rings with the needle roller and cage assembly or of the bearing ring with the needle roller set and prevent damage to the seal lips of the bearings. Inner rings are available with and without a lubrication hole. Rings with a lubrication hole have the suffix IS1.