6210 Bearing Dimensions and Cross Reference
6210 = 50 mm bore, 90 mm OD, 20 mm width; deep groove ball bearing, ISO 15.
Verified dimensions
| Bore (d) | 50 mm |
|---|---|
| Outer Diameter (D) | 90 mm |
| Width (B) | 20 mm |
| Type | Deep Groove Ball Bearing |
| Standard | ISO 15 |
In the diagram and table, d is bore diameter, D is outside diameter and B is width.
Sources and evidence
Boundary dimensions are traced to the cited standard. Brand designations and suffixes are checked against the official catalog entry linked for each manufacturer.
Cross-Reference by Brand
| Brand | Part No. | Contact seal | Shield | Boundary dims | Catalog |
|---|---|---|---|---|---|
| SKF | 6210 | 2RSH | 2Z | match | SKF catalog ↗ |
| NSK | 6210 | DDU | ZZ | match | NSK catalog ↗ |
| FAG | 6210 | 2RSR | 2ZR | match | FAG catalog ↗ |
| NTN | 6210 | LLU | ZZ | match | NTN catalog ↗ |
| KOYO | 6210 | 2RS | ZZ | match | KOYO catalog ↗ |
| NACHI | 6210 | 2NSE | ZE | match | NACHI catalog ↗ |
| Timken | 6210 | 2RS | ZZ | match | Timken catalog ↗ |
| INA | 6210 | 2RSR | 2ZR | match | INA catalog ↗ |
Interchange notes
A 6210 dimensional match requires 50 mm bore, 90 mm outside diameter and 20 mm width together. The designation or bore by itself is not a complete substitution check.
For 6210, the catalog-backed contact-seal mappings include SKF 2RSH, NSK DDU, FAG/INA 2RSR, NTN LLU, KOYO/Timken 2RS and NACHI 2NSE. Shield mappings use 2Z, ZZ, 2ZR or ZE according to brand.
Manufacturer checks before substitution
Confirm load rating, speed limit, internal clearance, precision class, lubrication and application suitability in the official manufacturer catalog for the exact brand and suffix. This page does not supply those values or make an application recommendation. Review the interchange rules before selecting a substitute.
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FAQ
What is the 6210 bearing size in millimetres?
The ISO 15 boundary size is 50×90×20 mm: 50 mm bore, 90 mm OD and 20 mm width.
Which 6210 shield suffixes are shown across brands?
The table lists SKF 2Z, NSK/NTN/KOYO/Timken ZZ, FAG/INA 2ZR and NACHI ZE. These are brand-specific codes, so verify the selected catalog entry.
What should be checked after confirming 50×90×20 mm?
Confirm whether the required 6210 is open, sealed or shielded, then verify the remaining manufacturer-specific selection fields in the official catalog.
Related sizes
Boundary-dimension cross-reference only. Per the applicable ISO standard (ISO 15 for ball, ISO 355 for tapered), the boundary dimensions are common across brands, so the mounting envelope is interchangeable. This is NOT a drop-in part equivalence. Internal clearance, precision class, seal/shield type (where applicable), cage material and factory lubrication are encoded in brand-specific suffixes and must be matched separately. Always verify against the manufacturer's catalog before substituting.