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Different Bearing Seal Types

different bearing seal types

 

Different bearing seal types are as below,

Z: Steel plate dust cover on one side of bearing

ZZ: Steel plate dust cover on both sides of bearing

V: Non-contact dust cover made of rubber on one side of the bearing

VV: Rubber non-contact dust cover on both sides of the bearing

DU: Rubber contact dust cover on one side of bearing

DDU: Rubber contact dust cover on both sides of the bearing

RS: There is a skeleton type rubber seal on one side of the bearing (contact type).

For Example: 6309-RS

2RS: With skeleton rubber seals on both sides of the bearing (contact type).

For Example: 6210-2RS. (Note: The contact seal ring of NSK bearing is expressed as DDU,  contact seal ring of NTN bearing is expressed as LLU)

RZ: There is a skeleton type rubber seal on one side of the bearing (non-contact type).

For Instance: 6210-RZ

2RZ: Skeleton rubber seals on both sides of the bearing (non-contact type).

For Instance: 6210-2RZ

Z: Dust cover on one side of the bearing.

For Example: 6210-Z

2Z: Dust cover on both sides of the bearing.

For Example: 6210-2Z. (Note: The representation method of NSK is ZZ)

RSZ: The bearing has a skeleton rubber seal (contact type) on one side and a dust cover on the other.

For Example: 6210-RSZ

RZZ: The bearing has a skeleton rubber seal (non-contact type) on one side and a dust cover on the other.

For Example: 6210-RZZ

ZN: The bearing has a dust cover on one side and a stop groove on the outer ring on the other side. For Example: 6210-ZN

ZNR: One side of the bearing has a dust cover, and the other side has a stop groove and a stop ring on the outer ring.

For Example: 6210-ZNR

ZNB: The bearing has a dust cover on one side and a stop groove on the outer ring on the same side.

For Example: 6210-ZNB

2ZN: The bearing has dust cover on both sides, and the outer ring has a stop groove.

For Example: 6210-2ZN

If you have any doubt or suggestion for different bearing seal types, just leave a comment or email us. Our technician will reply you within 12 hours!

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