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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!
Questions buyers still ask while reviewing Different Bearing Seal Types
Which next options usually help after reviewing Different Bearing Seal Types?
Most buyers benefit from one broader family destination, one more commercial route, and one supporting guide that answers the next practical question. That combination usually turns research into a clearer shortlist.
Why add related bearing destinations beside Different Bearing Seal Types?
Because the first answer often leads to a second question about fit, applications, supplier choice, or repeat-order confidence. Keeping those next destinations close reduces unnecessary backtracking.
When is it worth moving from reading into a quote or product review?
That move usually makes sense once the topic has narrowed the likely bearing family and the remaining unknowns are commercial, dimensional, or application-specific rather than purely educational.
What usually makes the next bearing decision easier after Different Bearing Seal Types?
The process is often easier when the wider family view, the more commercial destination, and one practical guide stay visible together. That keeps the decision grounded in both application detail and buying reality.
Buyer FAQ
Questions buyers ask before choosing the next bearing option
What is the main takeaway from Different Bearing Seal Types?
The main takeaway is that different bearing seal types should be checked against the bearing family, dimensions, load direction, speed, and operating conditions instead of relying on the title or size alone.
When should I use this guide before requesting a quote?
Use the guide when you are comparing bearing models, checking suffix meanings, confirming seal or clearance choices, planning maintenance, or preparing details for replacement, production, or OEM sourcing.
How does this topic connect to bearing supply?
The topic supports the Bearing Supply decision path by helping buyers understand fit, performance, specification details, or maintenance factors before choosing a product page or contacting the team.
Can this guide replace a final specification check?
No. The guide helps prepare the decision, but a final check should still confirm the part number, dimensions, load, speed, seal, clearance, precision, application, and order quantity.
What should I send if I need help after reading this guide?
Send the bearing number, measured size, photos if available, application, quantity, and any special operating conditions. That gives the team enough context to recommend the right product family or quote route.
Need help checking fit, price, or lead time? Request a bearing quote