Friction 
Linear ball bearings are frequently used where high positional accuracy and high efficiency are a priority. The bearings must therefore run without stickslip and with only low friction. 

The total friction ╳ 

The
factors on which the coefficient of friction ╳ 
Coefficient of friction ╳ 
The
coefficients of friction ╳ 
In
Permaglide^{®} linear plain bearings, the coefficient
of friction ╳ 