Wear Resistance Data

RTP 800 Series Acetal (POM) Compounds — English Units

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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 (in3), K is wear factor (in3 min/ft lb hr)10-10, F is force (lb), V is velocity (ft/min), and T is elapsed time (hr).

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 metric units | Return to wear data resin list ]

Plastic vs Plastic

Test Conditions
PV 1000
Load 4
Speed 50
Rotating Sample vs Stationary Sample µ
Dynamic
RTP Product Wear
Factor
RTP Product Wear
Factor
RTP 800
POM
Unfilled
13 vs RTP 200
PA 6/6
Unfilled
132 0.24
RTP 800
POM
Unfilled
61 vs RTP 205
PA 6/6
30% Glass Fiber
228 0.22
RTP 800
POM
Unfilled
61 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
106 0.25
RTP 800
POM
Unfilled
13 vs RTP 300
PC
Unfilled
41 0.47
RTP 800 TFE20
POM
20% PTFE
4 vs RTP 200
PA 6/6
Unfilled
11 0.10
RTP 800 TFE 20
POM
20% PTFE
40 vs RTP 205
PA 6/6
30% Glass Fiber
149 0.24
RTP 800 TFE 20
POM
20% PTFE
68 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
118 0.20
RTP 800 TFE 20
POM
20% PTFE
6 vs RTP 285 TFE 15
PA 6/6
30% Carbon Fiber
15% PTFE
13 0.23
RTP 800 TFE 20
POM
20% PTFE
48 vs RTP 300
PC
Unfilled
99 0.42
RTP 800 TFE 20
POM
20% PTFE
26 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
63 0.27
RTP 800 TFE 20
POM
20% PTFE
44 vs RTP 300 TFE 15

88 0.42
RTP 800 TFE 20
POM
20% PTFE
8 vs RTP 200 TFE 20
PA 6/6
20% PTFE
48 0.32
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
4 vs RTP 200 TFE 20
PA 6/6
20% PTFE
98 0.14
RTP 805 TFE 15
POM
30& Glass Fiber
15% PTFE
222 vs RTP 205 TFE 15
PA 6/6
30% Glass Fiber
15% PTFE
244 0.24
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
93 vs RTP 205 D TFE 15
PA 6/12
30% Glass Fiber
15% PTFE
173 0.20
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
433 vs RTP 305 TFE 15
PC
30% Glass Fiber
15% PTFE
626 0.28
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
302 vs RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
103 0.28
RTP 805 TFE 15
POM
30% Glass Fiber
15% PTFE
86 vs RTP 1002
PBT
15% Glass Fiber
218 0.23
RTP 899 X 88199
POM
PTFE Lubricated
Silicone Lubricated
UL94 HB
1167 vs RTP 899 X 88199
POM
PTFE Lubricated
Silicone Lubricated
UL94 HB
326 0.36
RTP 899 X 93812
POM
Glass Fiber Reinforced
Internally Lubricated
19 vs RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
15 0.30
RTP 899 X 93812
POM
Glass Fiber Reinforced
Internally Lubricated
37 vs RTP 800
POM
Unfilled
1055 0.39
RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
73 vs RTP 899 X 88199
POM
PTFE Lubricated
Silicone Lubricated
UL94 HB
127 0.23
RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
30 vs RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
22 0.25
RTP 899 X 93924
POM
PFPE Lubricated
PTFE Lubricated
2 vs RTP 200 TFE 20
PA 6/6
20% PTFE
44 0.27
  • Thrust washer testing conducted per ASTM D 3702
  • Wear Factor units: (in3 min/ft lb hr)10-10
  • PV units: lb ft/in2 min
  • Load units: lbs
  • Speed units: ft/min

Plastic vs Steel

RTP Product RTP Product Tested vs Steel (1018 C)
Test Conditions
PV 2000
Load 8
Speed 50
Test Conditions
PV 5000
Load 10
Speed 100
Test Conditions
PV 10000
Load 40
Speed 50
Wear
Factor
µ
Dynamic
Wear
Factor
µ
Dynamic
Wear
Factor
µ
Dynamic
RTP 800
Unfilled POM
93 0.40 102 0.42 150 0.44
RTP 800 SI 2
2% Silicone
42 0.43 46 0.41 60 0.51
RTP 800 TFE 10
10% PTFE
85 0.68 13 0.29 7 0.18
RTP 800 TFE 15
15% PTFE
67 0.26 22 0.34    
RTP 800 TFE 20
20% PTFE
82 0.25 14 0.34    
RTP 800 TFE 10 SI 2
10% PTFE
2% Silicone
9 0.29 6 0.24 9 0.14
RTP 805 TFE 15
30% Glass Fiber
15% PTFE
71 0.46 135 0.36 867 0.34
RTP 882 TFE 10
15% Carbon Fiber
10% PTFE
160 0.30 219 0.40    
RTP 800 AR 10 TFE 15
10% Aramid Fiber
15% PTFE
23 0.18 8 0.25 3 0.19
RTP 899 X 93924
PFPE Lubricated
PTFE Lubricated
14 0.44 43 0.37 78 0.46
  • Thrust washer testing conducted per ASTM D 3702
  • Wear Factor units: (in3 min/ft lb hr)10-10
  • PV units: lb ft/in2 min
  • Load units: lb
  • Speed units: ft/min

Comparing competitive data note

  • RTP Company reports Wear Factors per unit Force (KF) with units of (in3 min/ft lb hr)10-10. This is the industry standard way to calculate and report Wear Factor. Some suppliers report Wear Factors per unit Pressure (KP) with units of (in5 min/ft lb hr)10-10. This value is arrived at by dividing the KF by the contact surface of the test specimen (0.35 in2). As result of this reporting discrepency, RTP Company's Wear Factor values appear to be significantly higher. For example a KP of 3 (in5 min/ft lb hr)10-10 would be equal to KF of 3/0.35 = 8.57 (in3 min/ft lb hr)10-10.

No information supplied by RTP Company constitutes a warranty regarding product performance or use. Any information regarding performance or use is only offered as suggestion for investigation for use, based upon RTP Company or other customer experience. RTP Company makes no warranties, expressed or implied, concerning the suitability or fitness of any of its products for any particular purpose. It is the responsibility of the customer to determine that the product is safe, lawful and technically suitable for the intended use. The disclosure of information herein is not a license to operate under, or a recommendation to infringe any patents.