For polymer deep groove ball bearings, the limiting speed (→ product table) is to be used as the determining factor to estimate the permissible speed.
The permissible speed depends on the applied load and the operating temperature. When both values are known, the adjustment factor for speed fn is to be calculated using
Starting with the calculated adjustment factor for speed fn from the y-axis (diagram 1), the percentage of the limiting speed can be determined and the permissible speed can be calculated.
Bearing 6301/HR11TN, P = 0,245 kN, T = 90 °C (195 °F)
Calculate the adjustment factor for speed fn
||permissible speed [r/min]
||limiting speed [r/min] (→ product table)