BEARINGDEXDeep groove ball
6212 bearing
60 mm bore, 110 mm outside diameter, 22 mm width (2.3622 × 4.3307 × 0.8661 in).
Dimensions
| mm | inch | |
|---|---|---|
| Bore d | 60 | 2.3622 |
| Outside diameter D | 110 | 4.3307 |
| Width B | 22 | 0.8661 |
Quick numbers
| Pitch diameter dm | 85.0 mm |
| Section height (D − d)/2 | 25.0 mm |
| n·dm at 1,800 rpm | 153,000 |
| n·dm at 3,600 rpm | 306,000 |
Compare against the maker's limiting speed. Speed calculator · L10 life
What the number means
6Deep groove ball
2Diameter series 2: light. Width series 0 is implied and left off.
12Bore code 12 × 5 = 60 mm
How each brand writes it
Same bearing, every maker's notation| Version | SKF | FAG | NSK | NTN | Koyo | NACHI |
|---|---|---|---|---|---|---|
| Open | 6212 | 6212 | 6212 | 6212 | 6212 | 6212 |
| Shields both sides | 6212-2Z | 6212-2ZR | 6212ZZ | 6212ZZ | 6212ZZ | 6212ZZE |
| Contact seals both sides | 6212-2RSH | 6212-2RSR | 6212DDU | 6212LLU | 6212-2RS | 6212-2NSE |
| Contact seals both sides, C3 | 6212-2RSH/C3 | 6212-2RSR-C3 | 6212DDUC3 | 6212LLUC3 | 6212-2RSC3 | 6212-2NSE C3 Verify |
| Non-contact seals both sides | 6212-2RSL | 6212-2BRS Verify | 6212VV | 6212LLB | 6212-2RU Verify | 6212-2NKE Verify |
| Shields both sides, C3 | 6212-2Z/C3 | 6212-2ZR-C3 | 6212ZZC3 | 6212ZZC3 | 6212ZZC3 | 6212ZZE C3 Verify |
Same size, different bearing
These share the 60 × 110 × 22 mm envelope but carry load differently. They aren't drop-in swaps.