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  • 72 Angular Contact Ball Bearing
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    • Description
    • Structure
    • Specification
    72 Series Single Row Angular Contact Ball Bearing Structural features:       Basic series YDPB precision bearing with ISO standard. The contact angle include 15º and 25º, the paired use can bear both axial load and radial load or synthetic load. Two types of cage:       The outer ring guided phenolic resin bakelite cloth cage and the rolling element guided nylon cage can be selected according to different uses.        For the middle-high speed working conditions, is recommended to use bakelite cage; 500000≤DmN≤1000000         For the low speed working conditions, can use nylon cage or bakelite cage. Speed factor:        Outer ring guided phenolic resin bakelite cloth cage as standard        Grease lubrication  DmN≤1000000  that the limiting speed  N≤1000000/Dm  Dm—Bearing mean diameter  Oil (minimum quantity) lubrication    DmN≤1500000 Applications:        This type of bearing has a wide application; Mainly used in high-speed precision axial positioning and radial positioning, and high precision rotation, etc. For example:             CNC lathe spindle, various workpiece axis of grinding machine, grinding wheel spindle, photovoltaic slicer, vacuum pump, blower, precision transmission machinery and others. Model Selection Installation and Maintenance  1. Please use the corrosion resistant bearings in a clean and dust free environment. The bearings should be carefully configured and the bearing spacer must be grounded. The inner and outer bearing spacers should have the same height and their depth of parallelism should be controlled to within 1µm. 2. Before installation wash and clean the angular contact ball bearing. After drying, lubricate the bearing with a specific amount of grease oil. If using oil mist lubrication, use it in moderation.  3.  Special tools are required for installation. Exert the force evenly on the bearing, and don't hit it.  4. The single row ball bearing should be stored in a clean and ventilated place away from corrosive gas. The relative humidity of the environment should be no more than 65%, and regular rust protection is needed for long-term storage.
    72 Series
    Single Row Angular Contact Ball Bearing  718 series
    Model No. Boundary dimension 〆15o 〆25o Cage material
    d D B load rating limit speed load rating limit speed
    Cr Cor Grease Oil Cr Cor Grease Oil
    7200 10 30 9 6.4 3.8 55000 84000 6.3 3.7 52000 79000 胶木/尼龙
    7201 12 32 10 7.2 4.5 52000 79000 6.9 4.3 47000 69000 胶木/尼龙
    7202 15 35 11 9.1 5.8 47000 69000 8.8 5.6 42000 62000 胶木/尼龙
    7203 17 40 12 11.3 7.4 39000 59000 10.9 7.1 37000 55000 胶木/尼龙
    7204 20 47 14 13.1 9.6 33000 49000 12.6 9.2 29000 44000 胶木/尼龙
    7205 25 52 15 16.8 13.1 29000 44000 16.1 12.5 25000 39000 胶木/尼龙
    7206 30 62 16 23.4 18.8 23000 37000 22.3 18.0 19000 33000 胶木/尼龙
    7207 35 72 17 25.8 22.9 17000 29000 24.5 21.9 16000 27000 胶木/尼龙
    7208 40 80 18 34.1 30.9 16000 27000 32.5 29.5 14000 23000 胶木/尼龙
    7209 45 85 19 35.5 33.8 15000 25000 33.8 32.3 13000 21000 胶木/尼龙
    7210 50 90 20 43.3 40.6 14000 23000 41.3 38.7 13000 21000 胶木/尼龙
    7211 55 100 21 53.6 51.1 13000 21000 51.1 48.8 12000 19000 胶木/尼龙
    7212 60 110 22 55.8 56.2 11000 18000 53.0 53.5 10000 17000 胶木/尼龙
    7213 65 120 23 67.5 69.0 10000 17000 64.2 65.8 8500 15000 胶木/尼龙
    7214 70 125 24 70.2 74.6 9000 16000 66.6 71.7 8000 14000 胶木/尼龙
    7215 75 130 25 72.7 80.2 8500 15000 68.9 76.3 7500 13000 胶木/尼龙
    7216 80 140 26 86.5 96.5 8000 14000 82.1 91.9 7000 12000 胶木/尼龙
    7217 85 150 28 97.4 107.5 7500 13000 92.5 102.4 6500 11000 胶木/尼龙
    7218 90 160 30 121.9 131.3 7000 12000 115.8 124.6 6000 10000 胶木/尼龙
    7219 95 170 32 128.9 145.1 6500 11000 122.5 138.3 5700 9000 胶木/尼龙
    7220 100 180 34 146.2 165.9 6000 10000 138.9 158.2 5700 9000 胶木/尼龙
    7221 105 190 36 164.3 118.2 6000 10000 156.3 179.5 5300 8500 胶木/尼龙
    7222 110 200 38 170.4 202.5 5700 9000 161.8 193.0 5000 8000 胶木/尼龙
    7224 120 215 40 175.4 218.4 5000 8000 166.3 207.9 4300 7000 胶木/尼龙
    7226 130 230 40 200.6 258.3 4600 7500 190.4 246.2 4000 6500 胶木/尼龙
    7228 140 250 42 223.6 306.6 4000 6500 212.3 292.2 3500 5700 胶木/尼龙
    7230 150 270 45 240.9 341.5 3500 5700 228.7 325.5 3000 5000 胶木/尼龙
    7232 160 290 48 248.6 365.8 3300 5300 236.1 348.6 2800 4600 胶木/尼龙
    7234 170 310 52 300.2 459.2 2800 4600 285.0 473.6 2600 4300
    7236 180 320 52 ———— ———— ———— ————
    7238 190 340 55 ———— ———— ———— ————
    7240 200 360 58 ———— ———— ———— ————
    7244 220 400 65 ———— ———— ———— ————
    Luoyang Yadian Machinery Equipment Co.ltd