Steel+Bronze powder+POM
Material Features
High wear resistance and low friction even only minute quantities of lubricant are supplied, the bearing surface carries a pattern of circular indents which should be filled with grease on assembly. Now this materials haven been widely used in metallurgy machines, mine machines, water conservancy industries, automotive, agriculture machines, rolling mill etc which for rotary and oscillating movement.
|
|
Tech. Data
|
|
Max. Load
|
Stzatic
|
250N/mm2
|
|
Temp.
|
-40dgrees~+130dgrees
|
|
Dynamic
|
140N/mm2
|
Max Speed
|
Dry
|
2m/s
|
|
Oil
|
>2m/s
|
|
Max. PV
|
3N/mm2.m/s
|
Thermal conductivity
|
4W(m.K)-1
|
|
Coefficient of thermal expansion
|
11x10-6K
|
Friction coefficient
|
0.05~0.20
|
|
|
Structure
|
|
SF-2 triple-layer composite material has a copper-plated steeI base and a sintered in bronze layer . The POM top layer solidly joined to the sintered bronze. This surface layer is provided with many oiI indentations. The diameter of the indentation is 2.5~3.0mm and the depth is 0.3~0.5mm. Before assembly. they are filled with Iubricating grease.
|
|
