6221-2RSR — cross-reference for SKF 6221-2RS1, NSK 6221DDU, NTN 6221LLU
Holding a bearing marked SKF 6221-2RS1 or NSK 6221DDU or NTN 6221LLU? Ours is 6221-2RSR — the same seat size, the same type and the same sealing and clearance design.
Designation equivalents
| Manufacturer | Designation |
|---|---|
| FAG / INA | 6221-2RSR |
| SKF | 6221-2RS1 |
| NSK | 6221DDU |
| NTN | 6221LLU |
Dimensions: ⌀105 × 190 × 36 mm
Before you replace it
This is a dimensional and design equivalent: the same seat size, the same bearing type and the same sealing and clearance design. It is not the same product — load ratings, tolerance class and grease may differ between manufacturers. For duty close to the limits or a critical application, check the datasheet of the specific design.
Where these equivalents come from
The base number of a standard bearing is an ISO standard — 6205 is 6205 at every manufacturer. Only the suffixes describing the design differ, and those are what we translate: shields, contact seals, cage and radial clearance. Designations that mean different things at different makers are deliberately omitted.