SKF tapered roller bearing single row, 30210 J2/Q 50 x 90 x 21.75

Bearing series 302
Tapered roller bearings feature conically shaped raceways in both the inner and outer rings, between which tapered rollers are arranged. The apexes of all conical surfaces converge at a common point on the bearing axis. Therefore, tapered roller bearings are particularly suitable for accommodating combined (radial and simultaneously axial) loads. Due to their internal design, single-row tapered roller bearings cannot be used alone but only in conjunction with a second bearing or as a bearing pair. Tapered roller bearings are generally not self-retaining. The inner ring with rollers and cage can be mounted separately from the outer ring. Main dimensions DIN 616:2000 / DIN-ISO 335 / DIN 720:1979

Additional designations:
J2 window cage made of sheet steel
Q optimized contact geometry and surface finish.