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For private and corporate customers
For private and corporate customers
Buy on invoice
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Pay after receival
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Guaranteed manufacturer quality
Guaranteed manufacturer quality
30 days return policy
For unconfigured items
For unconfigured items
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How to select the correct seal
Bull bearings without seal, with steel gasket, or with metal coverage are designed for different usage applications and circumstances. We offer you a complete and simple insight into the meaning and mode of action of different types of seals so that you can find the right roller bearing.
Coveration of different seals for all the more brands available from us
| characteristic | Fag | Nachi | NKE | NSK | Ntn | SKF | Snr | ZEN |
| 1/2 cover plate (n) | Z / 2Z | Z (e) / ZZ (e) | Z / 2Z | Z / ZZ | Z / ZZ | Z / 2Z | Z / ZZ | Z / ZZ |
| 1/2 sealing window (n) | RSR / 2RSR HRS / 2HRS |
NSL / 2NSL NSE (9) / 2nse (9) |
RSR / 2RSR RS2 / 2RS2 |
You / ddu | LU / LLU | RS1 / 2RS1 RSH / 2RSH |
E / ee | RS / 2RS |
| 1/2 Reift -low seal (s) | – | – | – | – | – | RSL / 2RSL | – | – |
| 1/2 touch -free poetry (s) | BRS / 2BRS | NKE (9) / 2NKE (9) | – | V / VV | LB / LLB | Rz / 2RZ | – | You / 2du |
Advantages and disadvantages of different seal types
Ball bearing without poetry
Disadvantages
- rapidable
Advantages
- no additional friction
- Running is simply possible
Groque ball bearing with metal cover on both sides
Disadvantages
- limited sealing effect compared to pollution
- minor temperature increase possible
Advantages
- non -contact
- No additional friction
- Usable up to the speed limit
- relatively good sealing effect
Groque ball bearing with plastic seal
Disadvantages
- Higher frictional resistance than with groove ball bearings without cover
Advantages
- Well sealed against dirt and moisture
- NBR plastic exists against many aggressive media
- Longer term, since the first lubrication usually reaches over the entire lifespan
