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6215M/C4VL0241 SKF

INSOCOAT ball bearing 75x130x25mm C4 brass cage

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​​The 6215M/C4VL0241 SKF 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 SKF 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. An equivalent of the 6215M/C4VL0241​ SKF is the 6215-M-J20AA-C4 from FAG, which can withstand voltages up to 3.000 V DC.

Specs 6215M/C4VL0241​ SKF

The 6215M/C4VL0241 can be seen as an upgrade for for the standard non-insulated 6215M/C4 ball bearing with an protection against electric current passage. The specifications are therefore identical to the 6215M/C4 deep groove ball bearing.

The 6215M/C4VL0241 SKF has an inner dimension or bore (d) of 75 mm, an outer dimension (D) of 130mm and a width or thickness (B) of 25mm. The 6216C3/VL0241 is open on both sides (it has no seals), has a brass cage and an internal play greater than C3 (C4). SKF INSOCOAT bearings with a basic coated outer ring, like the 6215M/C4VL0241 can withstand voltages up to 1.000 volt. The weight of the 6215M/C4VL0241 SKF is 1,45 kg.

​Suffix explanation 6215M/C4VL0241​ SKF

Why use INSOCOAT electrically insulated bearings?

​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 erosion is likely, such as:

Choosing INSOCOAT bearings for your application will prove to be most cost-effective, considering the repair work and cost of machine downtime and lost production, in case of bearing failure due to electric current passage. To prevent these extra cost it's recommended to opt for electrically insulated in the planning stage. As a result, you will benefit from reduced maintenance costs and higher machine availability. INSOCOAT bearings like the 6215M/C4VL0241 SKF are available for this purpose. For more information on SKF INSOCOAT bearings see the SKF website.

About SKF

SKF is the most renowned producer of bearings worldwide. SKF stands for outstanding quality and has been a forerunner in the production of bearings and related items for years. By buying a SKF bearing you are sure to buy top quality.​