6305 bearing: 25 × 62 × 17 mm
Bearings › 6305
A 6305 is a deep groove ball bearing, 25 mm bore, 62 mm outside diameter, 17 mm wide. Variants: 6305-2RS (rubber sealed), 6305-ZZ (metal shields), 6305 open.
| Bore | 25 mm |
|---|---|
| Outside diameter (OD) | 62 mm |
| Width | 17 mm |
| Dynamic load rating C | 23.4 kN |
| Static load rating C0 | 11.6 kN |
| Limiting speed | 16 000 r/min |
| Weight | 0.218 kg |
Ratings and weight: SKF product page, skf.com, read 2 Oct 2026, designation 6305. Limiting speed as SKF gives it.
Open 6305 in BenchsmithAdd to order list
What the number means
6 | Deep groove ball bearing |
3 | Medium series |
05 | Bore 05 × 5 = 25 mm |
Ask for
- 6305-2RS: rubber sealed both sides. Other brands: SKF 6305-2RSH, FAG 6305-2RSR, NSK 6305DDU, NTN 6305LLU, Koyo 6305-2RS.
- 6305-ZZ: metal shields both sides. Other brands: SKF 6305-2Z, FAG 6305-2ZR, NSK 6305ZZ, NTN 6305ZZ, Koyo 6305ZZ.
- 6305: 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 25 × 62 × 17 mm: 25 × 62 × 17 mm bearings. Measured a bearing with no number on it? Type the bore, OD and width into Benchsmith → Find → Bearing.