Additional designation suffixes used with SKF hybrid deep groove ball bearings are explained in the following.
||Balls made of silicon nitride
||Special design for wind turbine generators
||Contact seal, FKM, on both sides
||Displaced clearance range comprising the upper half of the C3 plus the lower half of the C4 clearance range
||Grease fill 10–15% of the free space in the bearing
||Bearing rings heat stabilized for operating temperatures ≤ 150 °C (300 °F)