深沟球轴承公制R系列轴承型号 bearing No. 内径 Bore d mm in 外径 O.D D mm in 宽度 Widht B mm in 倒角 Chamfer rmin mm 额定载荷（KN） Load Rating 钢球参数 Ball Complement Dynamic Cr Static Cor No. Size mm R3开 /闭 4.763 .1875 12.70 .5000 3.967 .1562 4.978 .1960 0.3 0.89 0.42 6 2.381 R3A 4.763 .1875 15.875 .6250 4.978 .1960 0.3 1.31 0.49 7 2.381 R168 6.35 .2500 9.525 .3750 3.175 .1250 0.1 0.27 0.14 R188 6.35 .2500 12.70 .5000 3.175 .1250 0.15 0.83 0.37 8 1.588 R4 6.35 .2500 15.875 .6250 4.978 .1960 0.30 1.136 0.558 8 2.381 R4A开 /闭 6.35 .2500 19.05 .7500 5.556 .2188 7.142 .2812 0.40 2.175 1.163 6 3.969 R6开 /闭 9.525 .3750 22.225 .8750 5.556 .2188 7.142 .2812 0.40 2.56 1.35 7 3.969 R8开 /闭 12.70 .5000 28.575 1.1250 6.350 .2500 7.938 .3125 0.40 3.93 2.23 8 4.763 R8-7 11.113 .4375 28.575 1.1250 6.35 .2500 0.40 3.921 2.245 8 4.763 R10开 /闭 15.875 .6250 34.925 1.3750 7.142 .2812 8.731 .3437 0.60 4.62 2.79 10 4.763 R12开 /闭 19.05 .7500 41.275 1.6250 7.938 .3125 11.113 .4375 0.60 7.24 4.46 9 6.350 99502H 15.875 .6250 34.925 1.3750 7.938 .3125 0.80 4.61 2.77 8 5.953 R14开 /闭 22.225 .8750 47.625 1.8750 9.525 .3705 12.70 .5000 0.60 7.74 4.96 R16开 /闭 25.4 1.0000 50.80 2.0000 9.525 .3705 12.70 .5000 0.60 7.74 5.16 R18开 /闭 28.575 1.1250 53.975 2.1250 9.525 .3705 12.70 .5000 0.60 10.18 6.91