3209 Double Row Angular Contact Ball Bearing 45*85*30.2mm SUNBEARING

3209 Double Row Angular Contact Ball Bearing 45*85*30.2mm SUNBEARING Product Specification Bore diameter: 45 mm Reference speed 7500r/min Outside diameter: 85 mm Limiting speed 7500r/min Overall width: 30.2 mm Basic dynamic load rating, radial 52kN Rows of Balls Double Basic static load rating, radial 41.5kN Outer ring type: Unsplit Contact Angle 32 º Internal clearance: CN Mass 0.63 kgs Closure type: Open Operating Temperature Range -40 to 250 ºF -40 to 120 ºC Bore Type Round da min.52mm Precision Class 0 Da max.78mm Configuration Two ra max.1mm 3209 Bearing Short Description ​​3209 bearing is a kind of double row angular contact ball bearing.Double Row Angular Contact bearings are designed to work as two single row angular contact bearings but take up less axial space. They can accommodate radial loads and axial loads in both directions. The bearings have a 30-degree contact angle with the ball sets arranged back-to-back. Cage material can be either metal (no suffix) or glass-reinforced polyamide with the suffix "TN9". Double Row Angular Contact bearings are available in open design (no seals or shields) or with Metal Shields "2Z" and Rubber Seals "2RS1". The shielded and sealed bearings come pre-greased with high-quality NLGI class 3 grease with a temperature range of -30 to +120 degree C and are marked with suffix "MT33". 3209 Angular Contact Ball Bearing Features Occupies less axial space It can be used in applications where the axial space is limited when two single row angular contact ball bearings are arranged back to back. Can bear radial load and axial load in two directions Can withstand an overturning moment Rigid bearing arrangement 3209 Bearing Application Compared with single row angular contact ball bearings, double row angular contact ball bearings have better rigidity and can withstand overturning moments. The bearing is non-separable. Especially suitable for applications with high rigidity requirements. Widely used in front-wheel hubs of cars (some models also use double row tapered roller bearings of the same size)