6310 bearing
The 6310 is a deep groove ball bearing with a 50 mm bore, 110 mm outside diameter and 27 mm width, open (no seals or shields).
Size & specs
| Type | Deep groove ball bearing, 63 series (heavy) |
|---|---|
| Bore (ID) | 50 mm (1.969 in) |
| Outside diameter (OD) | 110 mm (4.331 in) |
| Width | 27 mm (1.063 in) |
| Seals / shields | Open |
Cross reference: same bearing, other brands
| SKF | 6310 |
|---|---|
| NTN | 6310 |
| NSK | 6310 |
| FAG | 6310 |
| Timken | 6310 |
| Koyo | 6310 |
Budget brands usually sell this as 6310. Add C3 if your old bearing was stamped C3 (looser fit for hot-running motors).
Where to buy
Other bearings with a 50 mm bore
Questions
What size is a 6310 bearing?
50 × 110 × 27 mm (bore × outside diameter × width).
What is an open 6310 bearing?
It has no seals or shields, so it must be lubricated by the machine (oil bath or grease). Choose 2RS or ZZ if the bearing needs to stay clean on its own.