BEARINGDEXDeep groove ball
6313 bearing
65 mm bore, 140 mm outside diameter, 33 mm width (2.5591 × 5.5118 × 1.2992 in).
Dimensions
| mm | inch | |
|---|---|---|
| Bore d | 65 | 2.5591 |
| Outside diameter D | 140 | 5.5118 |
| Width B | 33 | 1.2992 |
Quick numbers
| Pitch diameter dm | 102.5 mm |
| Section height (D − d)/2 | 37.5 mm |
| n·dm at 1,800 rpm | 184,500 |
| n·dm at 3,600 rpm | 369,000 |
Compare against the maker's limiting speed. Speed calculator · L10 life
What the number means
6Deep groove ball
3Diameter series 3: medium. Width series 0 is implied and left off.
13Bore code 13 × 5 = 65 mm
How each brand writes it
Same bearing, every maker's notation| Version | SKF | FAG | NSK | NTN | Koyo | NACHI |
|---|---|---|---|---|---|---|
| Open | 6313 | 6313 | 6313 | 6313 | 6313 | 6313 |
| Shields both sides | 6313-2Z | 6313-2ZR | 6313ZZ | 6313ZZ | 6313ZZ | 6313ZZE |
| Contact seals both sides | 6313-2RSH | 6313-2RSR | 6313DDU | 6313LLU | 6313-2RS | 6313-2NSE |
| Contact seals both sides, C3 | 6313-2RSH/C3 | 6313-2RSR-C3 | 6313DDUC3 | 6313LLUC3 | 6313-2RSC3 | 6313-2NSE C3 Verify |
| Non-contact seals both sides | 6313-2RSL | 6313-2BRS Verify | 6313VV | 6313LLB | 6313-2RU Verify | 6313-2NKE Verify |
| Shields both sides, C3 | 6313-2Z/C3 | 6313-2ZR-C3 | 6313ZZC3 | 6313ZZC3 | 6313ZZC3 | 6313ZZE C3 Verify |
Same size, different bearing
These share the 65 × 140 × 33 mm envelope but carry load differently. They aren't drop-in swaps.