INA from Schaeffler bearings have a cylindrical outer ring and are fitted in cylindrical bores. The inner ring is extended on both sides and is on the shaft using a location fit. Due to the extended inner ring, extra axial spacer rings are not required. The concentric seat allows for speeds equivalent to standard ball bearings, while the load can be either constant or alternating. Smooth running is also achieved.
R seals have two zinc-coated sheet steel washers extended outwards and angled downwards with intermediate NBR part and radially preloaded seal lip. They deliver better protection against mechanical damage.
Substantial grease reservoir due to the space between the extended and angled sheet steel washers. Used in radial insert ball bearings with inner ring extended on both sides.

• Sealed on both sides using R type seals • The sheet steel washers extended outwards and angled downwards form a large grease reservoir