... 4.High speed, low voice spherical roller bearing SKF 22315 Spherical roller bearing (aligning roller bearing)BrandSKF, NTN, FAG, NSK, ... Suffix:CA: Integral brass cage, double row symmetrical roller, inner ring rideCC: Two window-type steel cages, double row ... symmetrical roller, inner ring rideMA: Machined brass cage, outer ring rideMB: Machined brass cage, inner ring ride K: Tapered ...