Bearing life calculator

Basic nominal life (L)₁₀) is the life expectancy that 90% of identical bearings working under the same conditions are expected to reach or exceed.

Formula

L₁₀ = (C/P)^p (million cycles) and L_10h = 10⁶ / (60·n) l₁₀ (hour)

• A: Dynamic load count (catalog value, kn)
• P: Equivalent Dynamic Load (KN)
• P: 3 for ball bearings, 10/3 in roller bearings
• N: Cycle (dev/min)

Important note

Basic nominal life; It does not contain the effects of lubrication, pollution and temperature. In actual conditions, lifespan can vary significantly with these factors. You can pre-calculate with the interactive calculation tool on our homepage.