Better than Bronze
Can composites perform better than bronze? Comparative tests against our Orkot® bearing materials prove that they can. - By Donna Guinivan
ABOUT ORKOT®TLM MARINE
Orkot® TLM Marine is an advanced polymer reinforced with solid lubricants. The material has exceptional wear resistance and virtually no swell in water, providing dimensional stability and tolerating edge loading and misalignment even with the heaviest loads.
Where there are extended periods without lubrication, Orkot® TLM Marine proves especially effective.
The purpose of these tests was to compare RG12, a bronze commonly used in rudder applications, and Orkot® TLM Marine.
|The test parameters:|
|Surface Pressure||10 N/mm²|
|Shaft Speed||1 m/min|
|Angle of Reciprocation||± 15°|
|Sleeve Material||316 Stainless Steel|
|Surface Roughness Sleeve||0.6mm|
|Test Duration||100 Hours|
|The test results:|
||Orkot® TLM Marine|
|Duration (Hours)||Failed after 20.4||100|
|Average Coefficient of Friction||0.343||0.151|
|Peak Coefficient of Friction||0.621||0.299|
|Average Bearing Temp. (°C)||24.3||20.4|
|Average Room Temp. (°C)||20.5||19.6|
|Specific wear rate||Completely Worn Away||6.184 x 10-15 m3/Nm|
|Wear rate, depth per second||Completely Worn Away||1.031 x 10-9 m/sec|