NTN Ball bearings for rolling bearing units

Feature
NTN uses the same steel balls and cage as used in the 62.63 deep groove ball bearing series. In addition, the units feature a double seal that combines oil-resistant synthetic rubber seals on both sides and NTN's unique slinger (also called flinger).

The products include those with a wide inner ring that is tightened to the shaft with screws having mounting balls at two locations, and those that have a tapered bore caliber surface and are mounted on the shaft using an adapter. There are also products using the off-center collar method in which the inner ring is fixed on the shaft by means of an off-center groove on the inner groove and an off-center groove on the collar, and those in which the inner ring is mounted on the shaft through interference between the inner ring and shaft, as in the deep groove ball bearing products.