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HOME > PLAIN SLIDING LINEAR BEARINGS > ENGINEERING DATA

DRY SLIDING (PLAIN) BUSHES - ENGINEERING DATA:

Comparision chart for ceramic coated & self lubricating linear bearings

Imperial:

 

Self Lubricated (PTFE)

Ceramic Coated

Max PV Continuous 30,000 40,000
Max P-PSI (Static) 5,000 5,000
Max V SFM (No load) 400 unlimited
Shaft Hardness (min) RB 25 RC 35
Shaft Finish (RMS) 8 to 16 8 to 16
Coefficient of Friction 0.09 to 0.12 0.04 to 0.08
Temperature Range -400 to + 375ºF -200 to + 400ºF


Metric:

 

Self Lubricated (PTFE)

Ceramic Coated

Max PV Continuous 0.26 N/mm2 m/s 1.4 N/mm2 m/s
Max P (Static) 5.2 N/mm2 34.4 N/mm2
Max V (No load) 2 m/s unlimited
Shaft Hardness (min) RB 25 RC 35-63
Shaft Finish (RMS) 8 to 16 8 to 16
Coefficient of Friction 0.10 to 0.18 0.04 to 0.08
Temperature Range -240ºC to +190ºC -130ºC to +200ºC


Rotary Performance Data:

 

All Types

Maximum Velocity unlimited
Maximum Load (Static) 70 N/mm2
Coefficient of Friction From 0.04
Temperature Range -130ºC to +200ºC