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

POM

PTFE Lubricated

Silicone Lubricated

UL94 HB

254 0.23

POM

PFPE Lubricated

PTFE Lubricated

61 vs

POM

PFPE Lubricated

PTFE Lubricated

43 0.25

POM

PFPE Lubricated

PTFE Lubricated

4 vs

PA 6/6

20% PTFE

87 0.27
  • Thrust washer testing conducted per ASTM D 3702
  • Wear Factor: (mm