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, motor bearings, motorcycle steering 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, motor bearings, motorcycle steering bearings are widely used in the automobiles, vehicles, motorcycles, engineering equipment, electro-motive tools, textile and printing machinery, and OA equipment etc. |
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 |
|
|