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Needle roller bearings |
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Bushings |
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[bronze bearing, brass bushing]
As a professional bronze bearings, brass bushings manufacturer, exporter, supplier and factory in China.--Sino-Germany Joint Venture Jiashan Sanli Rongyao Bearing Co.,Ltd. a professional needle roller bearing and self-lubricating bushing manufacturer in China, is located in Zhejiang province, P. R. China being found since 1991. Our products, bronze bearing, brass bushing are widely used in the automobiles, vehicles, motorcycles, engineering equipment, electro-motive tools, textile and printing machinery, and OA equipment etc.
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We can provide thousands of specifications of products, bronze bearings, brass bushings 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. |
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.
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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. |
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| Base Metal |
Mark |
SP |
B |
F |
Material |
HB2C4 |
BC6 |
FC25 |
Main
Applications |
General
Water
High pressure |
General
Speed |
High temp
(+400℃) |
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| 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 |
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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 |
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Friction coefficient |
u(min) |
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0.03 |
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| 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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