Wear factor (K) is an indication of a materials resistance to wear as a function of the volume of material lost, force (load) and velocity at the wear interface and time. It is often determined using a “thrust washer” wear testing apparatus per ASTM D3702 in which a molded plastic specimen is rotated against a substrate thrust washer under set pressure and velocity conditions.

A wear factor is calculated with the equation W=K*F*V*T. In this equation W is wear volume (mm3), K is wear factor (mm3/N m)10-8, F is force (N), V is velocity (m/sec), and T is elapsed time (sec).

A material with a lower wear factor (K) has greater resistance to wear and these values are useful for material comparison purposes.

[ View wear data in english units | Return to wear data resin system list ]

Plastic vs Plastic

Test Conditions

PV 35

Load 0.90

Speed 0.25

Rotating Sample vs Stationary Sample µ
Dynamic
RTP Product Wear

Factor

RTP Product Wear

Factor

POM

Unfilled

26 vs

PA 6/6

Unfilled

265 0.24

POM

Unfilled

122 vs

PA 6/6

30% Glass Fiber

459 0.22

POM

Unfilled

122 vs

PA 6/6

30% Glass Fiber

15% PTFE

213 0.25

POM

Unfilled

26 vs

PC

Unfilled

82 0.47

POM

20% PTFE

8 vs

PA 6/6

Unfilled

22 0.10

POM

20% PTFE

81 vs

PA 6/6

30% Glass Fiber

300 0.24

POM

20% PTFE

137 vs

PA 6/6

30% Glass Fiber

15% PTFE

237 0.20

POM

20% PTFE

12 vs

PA 6/6

30% Carbon Fiber

15% PTFE

27 0.23

POM

20% PTFE

97 vs

PC

Unfilled

199 0.42

POM

20% PTFE

52 vs

PA 6/6

30% Glass Fiber

15% PTFE

127 0.27

POM

20% PTFE

89 vs 177 0.42

POM

20% PTFE

16 vs

PA 6/6

20% PTFE

97 0.32

POM

30% Glass Fiber

15% PTFE

7 vs

PA 6/6

20% PTFE

196 0.14

POM

30& Glass Fiber

15% PTFE

447 vs

PA 6/6

30% Glass Fiber

15% PTFE

490 0.24

POM

30% Glass Fiber

15% PTFE

187 vs

PA 6/12

30% Glass Fiber

15% PTFE

348 0.20

POM

30% Glass Fiber

15% PTFE

871 vs

PC

30% Glass Fiber

15% PTFE

1258 0.28

POM

30% Glass Fiber

15% PTFE

606 vs

POM

30% Glass Fiber

15% PTFE

261 0.28

POM

30% Glass Fiber

15% PTFE

173 vs

PBT

15% Glass Fiber

438 0.23

POM

PTFE Lubricated

Silicone Lubricated

UL94 HB

2346 vs

POM

PTFE Lubricated

Silicone Lubricated

UL94 HB

656 0.36
RTP 899 X 93812

POM

Glass Fiber Reinforced

Internally Lubricated

39 vs

POM

PFPE Lubricated

PTFE Lubricated

30 0.30
RTP 899 X 93812

POM

Glass Fiber Reinforced

Internally Lubricated

74 vs

POM

Unfilled

2120 0.39

POM

PFPE Lubricated

PTFE Lubricated

147 vs