6211 bearing: 55 × 100 × 21 mm
Bearings › 6211
A 6211 is a deep groove ball bearing, 55 mm bore, 100 mm outside diameter, 21 mm wide. Variants: 6211-2RS (rubber sealed), 6211-ZZ (metal shields), 6211 open.
| Bore | 55 mm |
|---|---|
| Outside diameter (OD) | 100 mm |
| Width | 21 mm |
| Dynamic load rating C | 46.2 kN |
| Static load rating C0 | 29 kN |
| Limiting speed | 9 000 r/min |
| Weight | 0.591 kg |
Ratings and weight: SKF product page, skf.com, read 2 Oct 2026, designation 6211. Limiting speed as SKF gives it.
Open 6211 in BenchsmithAdd to order list
What the number means
6 | Deep groove ball bearing |
2 | Light series |
11 | Bore 11 × 5 = 55 mm |
Ask for
- 6211-2RS: rubber sealed both sides. Other brands: SKF 6211-2RSH, FAG 6211-2RSR, NSK 6211DDU, NTN 6211LLU, Koyo 6211-2RS.
- 6211-ZZ: metal shields both sides. Other brands: SKF 6211-2Z, FAG 6211-2ZR, NSK 6211ZZ, NTN 6211ZZ, Koyo 6211ZZ.
- 6211: open, no seals or shields.
Add C3 for electric motors and anything that runs hot.
About the 62 series
The workhorse. Electric motors, pumps, gearboxes, conveyor rollers, anything with a moderate load and real speed. If you pull a bearing off a motor and it's metric, it's probably a 62 or a 63.
2RS keeps dirt out and grease in, but runs warmer and slower. ZZ shields run cooler but let fine dust through. Dirty or wet: 2RS. Fast and clean: ZZ or open with oil.
Motors usually want C3 clearance. The rotor heats up and grows; a CN bearing can run tight and die early.
Same bore, different size
One size up or down
Every bearing 55 × 100 × 21 mm: 55 × 100 × 21 mm bearings. Measured a bearing with no number on it? Type the bore, OD and width into Benchsmith → Find → Bearing.