6312 bearing: 60 × 130 × 31 mm
Bearings › 6312
A 6312 is a deep groove ball bearing, 60 mm bore, 130 mm outside diameter, 31 mm wide. Variants: 6312-2RS (rubber sealed), 6312-ZZ (metal shields), 6312 open.
| Bore | 60 mm |
|---|---|
| Outside diameter (OD) | 130 mm |
| Width | 31 mm |
| Dynamic load rating C | 85.2 kN |
| Static load rating C0 | 52 kN |
| Limiting speed | 7 000 r/min |
| Weight | 1.67 kg |
Ratings and weight: SKF product page, skf.com, read 2 Oct 2026, designation 6312. Limiting speed as SKF gives it.
Open 6312 in BenchsmithAdd to order list
What the number means
6 | Deep groove ball bearing |
3 | Medium series |
12 | Bore 12 × 5 = 60 mm |
Ask for
- 6312-2RS: rubber sealed both sides. Other brands: SKF 6312-2RSH, FAG 6312-2RSR, NSK 6312DDU, NTN 6312LLU, Koyo 6312-2RS.
- 6312-ZZ: metal shields both sides. Other brands: SKF 6312-2Z, FAG 6312-2ZR, NSK 6312ZZ, NTN 6312ZZ, Koyo 6312ZZ.
- 6312: open, no seals or shields.
Add C3 for electric motors and anything that runs hot.
About the 63 series
Same bore as the 62, but a bigger OD and wider. Heavier load, same shaft. You'll find them in pumps, compressors and the drive end of bigger motors.
If a 62 keeps failing and the housing has room, a 63 is the usual upgrade. Check the housing bore first; it won't fit a 62's seat.
Same bore, different size
One size up or down
Every bearing 60 × 130 × 31 mm: 60 × 130 × 31 mm bearings. Measured a bearing with no number on it? Type the bore, OD and width into Benchsmith → Find → Bearing.