Bearing Suffix & Seal Selector
Enter a model, choose what the position needs, and see the ENRO versions that exist for that size.
Enter an ENRO model and press Show versions. Matching versions appear here.
- Model or part number for each line
- Quantity per line
- Seal or shield, snap ring or bore type
- Clearance group, if not CN
- Destination port or country
Suffix meanings
| Code | Meaning |
|---|---|
| Open | Open. No shields or seals. Lubricated in service by grease or oil. |
| ZZ | Metal shields, both sides. Non-contact steel shields. Low friction; keeps out larger particles. |
| 2RS | Rubber seals, both sides. Contact rubber seals. Better protection against dust and water; slightly higher friction. |
| NR | Snap ring groove with snap ring. Snap ring on the outer ring for axial location in the housing. |
| W33 | Lubrication groove and holes. Groove and holes in the outer ring for relubrication. |
| K | Tapered bore 1:12. Tapered bore, taper 1:12, for adapter or withdrawal sleeve mounting. |
| K30 | Tapered bore 1:30. Tapered bore, taper 1:30, used on wide series such as 240 and 241. |
Only versions listed in the ENRO model table are shown. Clearance groups are stated separately on the RFQ.
Other tools
- Bearing Size FinderFind a model from bore, outside diameter and width.
- Bearing Life CalculatorBasic rating life L10 and L10h per ISO 281.
- Bearing Size ChartSeries-by-series boundary dimension reference.
Suffix & Seal Selector FAQ
What is the difference between ZZ and 2RS?
Metal shields, both sides: Non-contact steel shields. Low friction; keeps out larger particles. Rubber seals, both sides: Contact rubber seals. Better protection against dust and water; slightly higher friction.
Is 2Z the same as ZZ?
Yes. Both mean metal shields on both sides; makers write it differently.
What does K mean on a spherical roller bearing?
Tapered bore, taper 1:12, for adapter or withdrawal sleeve mounting.
Where do I state the clearance group?
On the RFQ. Clearance (for example C3) is written after the seal suffix in most designations, such as 6205-2RS/C3.
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