This 7211BECBJ bearing is a single row angular contact bearings with a 40° contact angle
55 BER 10 S T SU L P3 Bore Size - 55mm 25° Contact Angle 10 Series Rings and Rolling Elements - Bearing Steel Phenolic Resin Cage with Outer Ring Guide Open Type Single Universal Light Precision Rating
73 11 ET SU L P4 Series - Medium Bore Size - 55mm 25 Degree Contact Angle Single Universal Light Preload Precision Rating
Medium Series 65mm - Bore Size Double Row without Filling Slots Metal Shields On Both Sides Axial Internal Clearance Greater than Normal Grease with a lithium thickener of consistency 3 to the NLGI Scale for a temperature range –30 to +120 °C
this bearing also has a standard radial internal clearance The bearing's dimensions are 12x28x8
1310KTN - NSK Double Row Angular Contact Bearings - 50x110x27mm 3310.a.zz.tn9.c3.vt113.QBL This 7211BECBJ bearing is aThis 1310KTN bearing is a double row, narrow series, metric self aligning bearing with a 1: 12 tapered bore, a polyamide cage and a normal radial internal clearance. The bearing's dimensions are 50x110x27. 13 10 k tn Narrow Bore Size 50mm Tapered Bore (1: 12 on Diameter) PA66 Cage, Ball Centred Normal Radial Internal Clearance