3309 Double Row Angular Contact Ball Bearing 45*100*39.7mm  SUNBEARING

3309 Double Row Angular Contact Ball Bearing 45*100*39.7mm SUNBEARINGProduct SpecificationBore diameter:45 mmStatic Load Rating17600 lbf78500 N78.50 kNOutside diameter:100 mmDynamic Load Rating16400 lbf73000 N73.00 kNOverall width:39.7 mmOperating Temperature Range-40 to 250 ºF-40 to 120 ºCRows of BallsDoubleReference speed7500r/minOuter ring type:UnSplitLimiting speed6700r/minInternal clearance:CNMass1.25 KgsClosure type:OpenContact Angle32 ºMaterialHigh Carbon Chrome Steelda min54 mmPrecisionClass 0ra max1.5 mmConfigurationTwoDa max91 mm3309 Bearing Short Description3309 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 the suffix "MT33".3309 Angular Contact Ball Bearing FeaturesThe design of double row angular contact ball bearings is basically the same as that of single row angular contact ball bearings but only takes up a smaller axial space. Double row angular contact ball bearings can bear radial load and axial load acting in two directions, and it can limit the axial displacement of the shaft or housing in both directions. A bearing configuration with higher rigidity can be provided and can withstand the overturning moment.Double row angular contact ball bearings can withstand larger radial loads, mainly combined radial and axial loads and moment loads, limiting the axial displacement of the shaft on both sides. Mainly used in components that limit the bidirectional axial displacement of the shaft and the housing.3309 Bearing ApplicationCompared 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)