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Anonymous Poster

Bearing Lubrication

02/15/2011 8:48 PM

The bearing numbers on my motor lable plate are 6210-2z-j/c3 and 6310-2z-j/c3. My question is are these sealed bearings requiring no periodic lubrication or do they need greased. Thanks
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rakesh_semwal
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#1

Re: bearing lubrication

02/15/2011 9:16 PM

This kind of bearings are lubricated for life time if used with in specifications.
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TonyS
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#2

Re: Bearing Lubrication

02/16/2011 9:02 AM

Look in the SKF or any other bearing manufacturer data index and all will be revealed.

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Anonymous Poster
#3

Re: Bearing Lubrication

02/16/2011 11:26 PM

Bearing withshields or seals at both side are supplied as standard filled with litium base grease which has good rust inhibiting properities.bearing are supplied with lubricated.life is specified.check the catloge.Z series is shield bearing.
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capri
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#4

Re: Bearing Lubrication

02/17/2011 8:41 AM

Sealed bearings (2Z - both side sealed) are with grease inside for its lifetime.

C3 is Radial internal clearance.

6210 2Z is designed for a speed rating of 7000 rpm with C3 ranging between 18-36 μm.

6310 2Z is designed for a speed rating of 6300 rpm with C3 ranging between 23-43 μm.

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