Load rating table
| Designation | d [mm] | D [mm] | B [mm] | C [kN] | C₀ [kN] | Type |
|---|
Good to know
C — Dynamic load rating
The load under which a group of identical bearings will reach a basic rating life of L₁₀ = 1 000 000 rev (i.e. 90 % of bearings survive). Used in the ISO 281 life formula:
L₁₀ = (C / P)ᵖ [10⁶ rev]
p = 3 (ball), p = 10/3 (roller)
C₀ — Static load rating
The load that causes a permanent deformation of 0.0001 × d at the most loaded contact. Used when the bearing is stationary, oscillating slowly, or subject to shock loads:
s₀ = C₀ / P₀ [–]
Recommended s₀ ≥ 1 (normal), ≥ 2 (shock)
Series overview
- 6000 — extra-light, low load, high speed
- 6200 — light, general purpose (most common)
- 6300 — medium, higher radial loads
- NU 22xx — medium cylindrical roller, moderate load
- NU 23xx — heavy cylindrical roller, high radial load
Designation system
- 62xx — last two digits = bore code (×5 mm for ≥ 04)
- 6200–6203 — bore: 10, 12, 15, 17 mm (special)
- NU — cylindrical roller, inner ring free to move axially
- Suffix -2RS — rubber seals; -ZZ — metal shields
- Values are typical (SKF/FAG); verify with manufacturer datasheet