• PRODUCT >> Copper Alloy Buried Solid Lubricating Bushes
SLS bearing, a professional needle roller bearing and self-lubricating bushing manufacturer in China, is located in Zhejiang province, P. R. China being found since 1991. We can provide thousands of specifications of products, trolley bearings, cam followers needle bearings and also can design and manufacture the special or non-standard dimensions or specs of needle roller bearings according to the customer's requirement, drawing, sample. Our products, trolley bearings, cam followers needle bearings are widely used in the automobiles, vehicles, motorcycles, engineering equipment, electro-motive tools, textile and printing machinery, and OA equipment etc.
trolley bearings, cam followers needle bearings
  Introduction
No.500 buried solid lubricating bushes is a kind of high-strength copper alloy,
which the developed casting techniques are adopted.The solide lubricant used
in the bushes is specially compounded.The bushes are heat-resisting and can
bear heavy load. Which are widely used in metallurgical industry.mining machine,petroleum machine,genrating machine, etc.
 
  Kinds
Solid Lubricants
kinds
General
High temp
Sea water
High pressure
Composition
Natural Graphite
MoS2
Artifical Graphite
Non ferrous
Metal oxide
Natural Graphite
P.T.E.E Paraffin
wax.etc.
Base Metal
Mark
SP
B
F
Material
HB2C4
BC6
FC25
Main
Applications
General
Water
High pressure
General
Speed
High temp
(+400℃)
   
Mechanical Physical Properties
Properties
Unit
No.500Sp
No.500B
No.500F
Specific gravity
g/cm3
8.2
8.7
7.2
Thermal expansion ratio
x10-5/℃
1.6-2.0
1.6-1.8
1.0-1.2
Thermal conductivity
cal/sec.℃.cm
0.09-0.03
0.11-0.15
0.1-0.13
Tensile strength
kgf/mm2
77 or higher
20 or higher
15 or higher
Impact strength
kgfcm/cm2
400~500
400-500
20-40
Compressive strength
kgf/mm2
45 or higher
Hardness
HB
210 or higher
60 or higher
180 or higher
Vertical elastic coefficient
x104kg/mm2
100~400
95
100-130
Elongation
%
12 or higher
15or higher
Friction coefficient
u(min)
0.03
   
Application Range
Kinds
Lubricating Condition
Allowable max.load
(kgf/mm2)
Allowable max.speed
(m/mm)
Allowable max.PV Value
(kgf/mm2 · m/min)
Temperature
(+oC)
No.500SP
Non lubrication
250
15
1,000
250
500
15
2,000
Normal
Periodical lubrication
250
50
1,500
250
Dripping lubrication
250
100
2,000
250
No.500B
Non lubrication
150
25
600
400
Periodical lubrication
150
150
1,000
250
Dripping lubrication
150
250
2,000
250
No.501F
Non lubrication
50
15
400
400
Periodical lubrication
80
100
800
300
Dripping lubrication
80
100
1,000
300
 
 
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