Ina Inner ring IR70-80-30 Inner-Ø 70 mm Outer-Ø 80 mm Width30 mm

IR inner rings, finely machined, according to DIN 620. Inner rings are made of hardened rolling bearing steel and have finely machined or ground raceways. They are required for needle sleeves, needle bushes, and needle cages when the shaft cannot be used as a raceway. Chamfers on the end faces facilitate easy insertion into the bearings and prevent damage to the sealing lips of the bearings.