Industrial Ball Bearings

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​​The 6319M/C3VL0241 S is an electrically insulated deep groove ball bearing (INSOCOAT ball bearing). A special coating on the outer ring (VL0241) protects against bearing damage and eventual failure due to the passage of electric current.

Electrically insulated bearings are marketed by  under the name INSOCOAT. The VL0241 indicates the addition of an aluminium oxide coating on the outer ring​​ to withstand voltages up to 1.000 V DC.

​The 6319M/C3VL0241 can be seen as an upgrade for for the standard non-insulated 6319M/C3 ball bearing with an protection against electric current passage. The specifications are therefore identical to the 6319M/C3 deep groove ball bearing.

The 6319M/C3VL0241 has an inner dimension or bore (d) of 95mm, an outer dimension (D) of 200mm and a width or thickness (B) of 45mm. The 6319M/C3VL0241 is open on both sides (it has no seals), has a brass cage and an internal play greater than Normal (C3).  INSOCOAT bearings with a basic coated outer ring, like the 6319M/C3VL0241 can withstand voltages up to 1.000 volt. The weight of the 6319M/C3VL0241 SKF is 5,97 kg.

• M: Machined Brass Cage, Ball Centered.
• VL0241: External surfaces of the outer ring coated with aluminium oxide. The coating is sealed with a resin to protect against the conductive effects of water and moisture. This basic coating can withstand voltages up to 1.000 V DC.
• C3: Internal clearance greater than Normal. The extra internal clearance allows expansion due to high speeds or temperatures.

​In general, it is difficult to eliminate the causes of electrical voltage in a bearing. Under unfavourable conditions the passage of electric current causes damage to raceways and rolling elements as well as degradation of the lubricant. Which, in addition, will result in premature, unexpected failure of a motor or generator. Therefore SKF INSOCOAT bearings are commonly used in applications where damaging effect of electrical 

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