Product details

Insulated Deep Groove Ball Bearing

An INSOCOAT bearing is a very economical solution when compared with other insulation methods that protect 

a bearing against electric current passage.  

INSOCOAT bearings with coated outer ring Bearings with an electrically insulating coating on the external surfaces 

of the outer ring are the most common INSOCOAT bearings. They are identified by the suffix VL0241. Outer ring 

coated INSOCOAT bearings are recommended for medium size motors, that use 6215, 6313 size bearings and larger. 

For applications where smaller bearings are used, SKF recommends hybrid deep groove ball bearings.

INSOCOAT bearings with coated inner ring Bearings with an electrically insulating coating on the external surfaces 

of the inner ring provide enhanced protection against electric current damage. The enhanced protection results from

 the increased impedance due to the smaller coated surface area. Bearings with a coated inner ring are identified by 

the suffix VL2071 and are recommended for larger size motors (typically from bearing sizes 6226, 6324 sizes and larger),

or other applications where the bearings risk being subjected to high shaft voltages.

CagesDepending on the bearing type and size, INSOCOAT bearings are equipped with one of the following cages 

• a riveted cage of pressed steel, no designation suffix, or 

• a two-piece machined brass cage, rolling element centred, designation suffix M. 

Electrical properties 

INSOCOAT bearings provide effective protection against AC and DC currents. The specifications for different variants are: 

VL0241 Electrical resistance: min. 50 MW, breakdown voltage: max. operating voltage 1 000 V DC. 

VL0246 Electrical resistance: > 150 MW, breakdown voltage: max. operating voltage 3 000 V DC. 

VL2071 Electrical resistance: min. 50 MW, breakdown voltage: max. operating voltage 1 000 V DC. 

VL2074 Electrical resistance: > 150 MW, breakdown voltage: max. operating voltage 2 000 V DC.


DesignationPrincipal dimensionsBasic load ratingsSpeed ratings
dynamicstaticReference speedLimiting 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/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/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 M/C3VL2071  120  260  55  216  186  5 600  5 000
  6324/C3VL2071  120  260  55  216  186  5 600  3 400
  6226/C3VL2071  130  230  40  156  132  5 600  3 600
  6326 M/C3VL2071  130  280  58  242  216  5 000  4 500
  6326/C3VL2071  5.1181  11.0236  2.2835  54 404  48 559  5 000  3 200
  6228/C3VL2071  5.5118  9.8425  1.6535  39 117  33 721  5 300  3 400
  6328 M/C3VL2071  5.5118  11.811  2.4409  59 574  55 078  4 800  4 300
  6328/C3VL2071  5.5118  11.811  2.4409  59 574  55 078  4 800  3 000
  6230/C3VL2071  5.9055  10.6299  1.7717  41 814  37 318  5 000  3 200
  6330/C3VL2071  5.9055  12.5984  2.5591  64 295  64 071  4 300  2 800
  6332 M/C3VL2071  6.2992  13.3858  2.6772  65 419  64 071  4 000  3 800
  6334 M/C3VL2071  6.6929  14.1732  2.8346  74 637  76 435  3 800  3 400
  6326/C3VL2071  130  280  58  242  216  5 000  3 200
  6228/C3VL2071  140  250  42  174  150  5 300  3 400
  6328 M/C3VL2071  140  300  62  265  245  4 800  4 300
  6328/C3VL2071  140  300  62  265  245  4 800  3 000
  6230/C3VL2071  150  270  45  186  166  5 000  3 200
  6330/C3VL2071  150  320  65  286  285  4 300  2 800
  6332 M/C3VL2071  160  340  68  291  285  4 000  3 800
  6334 M/C3VL2071  170  360  72  332  340  3 800  3 400

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