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    SKF Insulated bearings

    Electric motors, generators and associated equipment are at risk when an electric current passes through their bearings. This can damage the contact surfaces of rolling elements and raceways in the bearings (electrical erosion) and rapidly degrade the grease. An additional risk in electric motors and generators comes from high frequency currents caused by the inherent stray capacitance. The risk of damage increases where the application uses a frequency converter.

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    Product Description

    INSOCOAT bearings are designed to prevent electric current from passing through the bearing. The external surfaces of either their inner or outer ring are coated with an insulating aluminium oxide layer, by applying a sophisticated plasma-spray process for an outstanding quality finish. The solutions are very cost-effective compared with other insulation methods.

    Designation Principal dimensions Basic load ratings Speed ratings
    dynamic static Reference  speed Limiting speed
    d(mm) D(mm) B(mm) C(kN) C0(kN） （r/min) (r/min)
       6314 M/C3VL0241 70 150 35 104 68   9 500   9 000
       6314 M/C4VL0241 70 150 35 104 68   9 500   9 000
       6314/C3VL0241 70 150 35 111 68   9 500   6 300
       6215/C3VL0241 75 130 25 68.9 49   10 000   6 700
       6315 M/C3VL0241 75 160 37 119 76.5   9 000   8 000
       6315-Z/C3VL0241 75 160 37 119 76.5   9 000   5 600
       6315/C3VL0241 75 160 37 119 76.5   9 000   5 600
       6216/C3VL0241 80 140 26 72.8 55   9 500   6 000
       6316 M/C3VL0241 80 170 39 130 86.5   8 500   7 500
       6316/C3VL0241 80 170 39 130 86.5   8 500   5 300
       6217/C3VL0241 85 150 28 87.1 64   9 000   5 600
       6317 M/C3VL0241 85 180 41 140 96.5   8 000   7 500
       6317/C3VL0241 85 180 41 140 96.5   8 000   5 000
       6218/C3VL0241 90 160 30 101 73.5   8 500   5 300
       6318 M/C3VL0241 90 190 43 151 108   7 500   7 000
       6318/C3VL0241 90 190 43 151 108   7 500   4 800
       6219 M/C3VL0241 95 170 32 114 81.5   8 000   7 500
       6219/C3VL0241 95 170 32 114 81.5   8 000   5 000
       6319 M/C3VL0241 95 200 45 159 118   7 000   6 300
       6319/C3VL0241 95 200 45 159 118   7 000   4 500
       6220/C3VL0241 100 180 34 127 93   7 500   4 800
       6320 M/C3VL0241 100 215 47 182 140   6 700   6 000
       6320/C3VL0241 100 215 47 182 140   6 700   4 300
       6222 M/C3VL0241 110 200 38 151 118   6 700   6 300
       6222/C3VL0241 110 200 38 151 118   6 700   4 300
       6322 M/C3VL0241 110 240 50 216 180   6 000   5 300
       6322/C3VL0241 110 240 50 216 180   6 000   3 800
       6224/C3VL0241 120 215 40 153 118   6 300   4 000
       6324/C3VL2071 120 260 55 216 186   5 600   3 400
       6226/C3VL2071 130 230 40 156 132   5 600   3 600
      6322/C3VL0241 110 240 50 216 180   6 000   3 800
       6324/C3VL2071 120 260 55 216 186   5 600   3 400
       6326/C3VL2071 130 280 58 229 216   5 000   3 200
       6328 M/C3VL2071 140 300 62 265 245   4 800   4 300
       6328/C3VL2071 140 300 62 265 245   4 800   3 000
       6330/C3VL2071 150 320 65 286 285   4 300   2 800
       6332 M/C3VL2071 160 340 68 291 285   4 000   3 800
      NU 210 ECM/C3HVA3091 50 90 20 73.5 69.5   8 500   9 000
       NU 310 ECM/C3VL0241 50 110 27 127 112   6 700   8 000
       NU 212 ECM/C3VL0241 60 110 22 108 102   6 700   7 500
       NU 312 ECM/C3VL0241 60 130 31 173 160   5 600   6 700
       NU 313 ECM/C3VL0241 65 140 33 212 196   5 300   6 000
       NU 314 ECM/C3VL0241 70 150 35 236 228   4 800   5 600
       NU 315 ECP/VL0241 75 160 37 280 265   4 500   5 300
       NU 216 ECM/C3VL0241 80 140 26 160 166   5 300   5 600
       NU 316 ECM/C3VL0241 80 170 39 300 290   4 300   5 000
       NU 217 ECM/C3VL0241 85 150 28 190 200   4 800   5 300
       NU 317 ECM/C3VL0241 85 180 41 340 335   4 000   4 800
       NU 1018 M/C4VA3091 90 140 24 80.9 104   5 600   5 600
       NU 218 ECM/C3VL0241 90 160 30 208 220   4 500   5 000
       NU 318 ECM/C3VL0241 90 190 43 365 360   3 800   4 500
       NU 319 ECM/C3VL0241 95 200 45 390 390   3 600   4 300
       NU 220 ECM/C3VL0241 100 180 34 285 305   4 000   4 500
       NU 320 ECM/C3VL0241 100 215 47 450 440   3 200   3 800
       NU 1022 M/C3VA3091 110 170 28 146 166   4 800   4 800
       NU 222 ECM/C3VL0241 110 200 38 335 365   3 600   4 000
       NU 322 ECM/C3VL0241 110 240 50 530 540   3 000   3 400
       NU 224 ECM/C3VL0241 120 215 40 390 430   3 400   3 600
       NU 324 ECM/C3VL0241 120 260 55 610 620   2 800   3 200

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