Bearing NO. Boundary dimensions(mm) Load Rating(kN)   Weight (kg) d D B Cr Cor 1614 9.525 28.575 9.525 5.11 2.39 0.0286 1615 11.112 28.575 9.525 5.11 2.39 0.0267 1616 12.700 28.575 9.525 5.11 2.39 0.0247 1620 11.113 34.925 11.112 7.64 3.72 0.0520 1621 12.700 34.925 11.112 7.64 3.72 0.0490 1622 14.288 34.925 11.112 7.64 3.72 0.0464 1623 15.875 34.925 11.112 7.64 3.72 0.0432 1628 15.875 41.275 12.700 9.57 4.79 0.0788 1630 19.050 41.275 12.700 9.38 5.03 0.0779 1633 15.875 44.450 12.700 9.38 5.03 0.100 1635 19.050 44.450 12.700 9.38 5.03 0.0914 1638 19.050 50.800 14.288 12.84 6.65 0.1421 1639 20.638 50.800 14.288 12.84 6.65 0.1380 1640 22.225 50.800 14.288 12.84 6.65 0.1306 1641 25.400 50.800 14.288 14.02 7.88 0.1090 1652 28.575 63.500 15.375 16.21 10.42 0.2288 1654 31.750 63.500 15.875 16.21 10.42 0.2056 1657 31.750 65.088 17.462 16.21 10.42 0..2386 1658 33.388 65.088 17.642 16.21 10.42 0.2359 33.338*65.088*17.462mm Bearing Features: Inner Ring Diameter (bore): 1.312inch Outer Ring Diameter:2.563inch Width:0.437inch Bearing Weight:0.2359KG 1623 ZZ-2RS Deep Groove Ball Bearing Application: 1. Gearboxes,Instruments,Motors 2. Household Appliances,Internal Combustion Engines 3. Traffic Vehicles,Agricultural Machinery,construction machinery,oller skates 1623 Deep Groove Ball Bearings Features: 1. Deep groove ball bearing is simple in structure and easy to use. 2. The largest batch production and the widest range of applications. 3. Preferred Bearing Type for User Selection. 4. Output accounts for more than 70% of the total output of bearings.