SF-2S Lubricating Lead-Free Bush |
Metallographies Structure |
|
|
1.POM with lead
0.3~0.5mm
2.Porous bronze 0.2~0.3mm
3.Steel backing 0.4~2.2mm
4.Copper plating 0.008mm
|
Introduction: |
SF-2Y Non-lead
boundary lubrication bearing is improved on the basis of sf-2X.It can be
applied to the field where non-lead is required.Now it's widely used in textile
machines,auto operating parts and other middle speed,middle load and grease
lubrication occasions.
|
Technical : |
Load capacity:
70N/mm2
Temperature:-o40+o130 oC
Speed limit: 2.5m/s
Friction coef(u): 0.05~0.25
PV LIMIT(Dry): 2.8N/mm2 .m/s
PV LIMIT(Oil): 22N/mm2 .m/s
|
|
| Application: |
1.Good load
capacity and anti-wear.
2.It is used in high load capacities and low speed with rotational,oscillating
or frequent stop-start motion.
3.It can work long time without oil in the condition of boundary
lubrication,under oil or grease lubrication interval, the work is longer.
4.It is machinable for the thicker of POM.
5.The bushes can be applied in auto chassis,forging machine, metallurgical,
civil engineering, power station, strip rolling industries
etc.
6.SF-2Y is widely used in the machine that Lead is unacceptable.
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SF-2Y CHEMICAL CHARACTERISTICS |
Type
|
In Air
|
In Vacuum
|
In water
|
In Vapor
|
Weak Acid
|
middle Acid
|
Strong Acid
|
In Alkali
|
SF-2y
|
OK
|
OK
|
OK
|
OK
|
BAD
|
NO
|
NO
|
OK
|
|
MMD-10 Friction&Wear Test |
Type
|
Time
|
Test Condition
|
Friction coef(u)
|
TEMP.
(°C)
|
Wear
(mm)
|
Lubricate
|
Speed
|
Drang
|
SF-2y
|
3hr
|
grease
|
0.4m/s
|
3.5N/mm2
|
0.088
|
53
|
0.01
|
|
