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6220-J20AA-C3 insolated Bearing

Views: 0     Author: Site Editor     Publish Time: 2017-04-01      Origin: Site

6220-J20AA-C3 Bearing

Lead time:15days after confirmed

To prevent such damage, XRB offers current-insulated bearings :

Current-insulated bearings and hybrid bearings 

  • Current-insulated bearings have either an outer ring (J20 A, J20 AA, J20B) or an inner ring (J20C) that is insulated with thin ceramic coating.

  • Different coating types are available for optimum functional performance.

Types of coatings - Range of Sizes 





J20A *)



Disruptive Voltage

500 VDC

1000 VDC

3000 VDC

3000 VDC






Coating Thickness

<100 μm

>200 μm

≈200 μm

≈200 μm

Applicable Dimensions

70…1400 mm
outside diameter

70…1400 mm
outside diameter

70…500 mm
outside diameter

70…340 mm
inner ring bore

*) Preferably used for bearings with an outside diameter of at least 500 mm


Current-insulated bearings have the same dimensions and load carrying capacities as those without insulation, which makes them perfectly interchangeable.
The most common type of insulation used in electric motor applications is the J20AA coating. It offers excellent protection against passage of electrical current, even in damp atmospheres.
Bearings with ceramic coating are available with seals also.

Bearings with J20C coating on the inner ring are used in special applications as well as applications where the outer ring rotates. Z shields can be used as well.

Ordering examples:


  • 6220-2RSR-J20AA-C3 
    Deep groove ball bearing with a coated outer ring, with seals on both sides and radial clearance C3.

  • NU214-E-M1-F1-J20B-C4 
    Cylindrical roller bearings with a coated outer ring and radial clearance C4.

  • 6330-J20C 
    Deep groove ball bearings with a coated inner ring

Hybrid bearings (HC): Hybrid bearings are characterized by the fact that the rolling elements are made of ceramic. They offer maximum protection against passage of electrical current. At the same time, hybrid bearings are suitable for higher speeds and have better dry-running characteristics.

Ordering examples:


  • HC6214-M-P6-C3 
    Deep groove ball bearing with ceramic balls; machined brass cage; increased accuracy P6 and bearing clearance C3.

  • HCN1020-K-M1-SP 
    Cylindrical roller bearing with ceramic rollers; tapered bore; machined brass cage; increased accuracy SP.

XRB as the biggest Current-insolated bearing supplier and 
China bearing manufacturer,it can supply the best solution for plummer block housing and the bearings according to their specific applications.,it can supply Original SNL3134 bearing housing,Our large quantity SNL3134 bearing housings Stock can meet your need with lowest price and fast delivery.

We accepted DHL,FEDEX,TNT express for small order and samples order,also the transportation By AIR or By Sea,by Train are all avaiable.we are sure we can ship our SNL3134 bearing housing to your office at the first time.More technical details,please contact with :

E-mail: brandbearings@gmail.com, Skype:brandbearings

TKW Focuses On the Development and Manufacturing of General and Non-Standard Rolling bearings

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 Yandian Industrial zone, Linqing City, Liaocheng,Shandong Province, China,
 +86-635-8509787 / +86-13280450757
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