Description Self-aligning Ball Bearing Information: In a self-aligning bearing, the inner ring has two raceways and the outer ring has a single spherical raceway with its center of curvature coincident with the bearing axis. Self-Aligning Double Row Ball Bearings are designed to work in applications where severe misalignment exists whether from mounting or shaft deflection. The concave raceway of the outer ring in combination with two rows of balls operate over a wide range of contact angles. Features of self-aligning ball bearing: 1:Retainer: Brass/Nylon/Steel as your requirement 2:Single direction 3:Restricted tolerances 4:Vibration resistance 5:Suitable for high speed 6:Radial load Product Product Name 2304ETN9 self aligning ball bearing cage Material nylon Size 20*52*21mm Number of Rows double row Service OEM, Customization Number Specification Speed(r/min) Weight d(mm) D(mm) B(mm) Grease Oil kg 1200 10 30 9 22000 28000 0.033 1201 12 32 10 22000 26000 0.039 1202 15 35 11 18000 22000 0.051 1203 17 40 12 16000 20000 0.072 1204 20 47 14 14000 17000 0.12 1205 25 52 15 12000 14000 0.14 1206 30 62 16 10000 12000 0.22 1207 35 72 17 8500 10000 0.32 1208 40 80 18 7500 9000 0.415 1209 45 85 19 7100 8500 0.465 1210 50 90 20 6300 8000 0.525
