6310 bearing: 50 × 110 × 27 mm
Bearings › 6310
A 6310 is a deep groove ball bearing, 50 mm bore, 110 mm outside diameter, 27 mm wide. Variants: 6310-2RS (rubber sealed), 6310-ZZ (metal shields), 6310 open.
| Bore | 50 mm |
|---|---|
| Outside diameter (OD) | 110 mm |
| Width | 27 mm |
| Dynamic load rating C | 65 kN |
| Static load rating C0 | 38 kN |
| Limiting speed | 8 500 r/min |
| Weight | 1.05 kg |
Ratings and weight: SKF product page, skf.com, read 2 Oct 2026, designation 6310. Limiting speed as SKF gives it.
Open 6310 in BenchsmithAdd to order list
What the number means
6 | Deep groove ball bearing |
3 | Medium series |
10 | Bore 10 × 5 = 50 mm |
Ask for
- 6310-2RS: rubber sealed both sides. Other brands: SKF 6310-2RSH, FAG 6310-2RSR, NSK 6310DDU, NTN 6310LLU, Koyo 6310-2RS.
- 6310-ZZ: metal shields both sides. Other brands: SKF 6310-2Z, FAG 6310-2ZR, NSK 6310ZZ, NTN 6310ZZ, Koyo 6310ZZ.
- 6310: 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 50 × 110 × 27 mm: 50 × 110 × 27 mm bearings. Measured a bearing with no number on it? Type the bore, OD and width into Benchsmith → Find → Bearing.