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JDB Series |
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JDB is a kind of solid lubricant embedded bearing with metal such
as bronze asbasis and embedded graphite and MoS2 within it as lubricant.
Specific technology is adopted to firmly integrate lubricant itself
and meanwhile leave homogeineously distributed space within it so
that the lubricant as a whole can absorb lubricating oil or grease
over 20 percent of its total volume.When working without oil or under
oil inadequacy, friction heat drive oil and lubricant form inner side
to surface so as to raduce feiction efficient and improve wear-friction
performance.
After long years of reseach on market application and over and agair
simulation test, the products' performance is being improved continuously
and currently is leveled with that made in Japan.Now all the manufacture
is conducted on the digital-dominated lathe so that ensure the stability
on product's quality.
Five types of JDB has been developed to date in order to meet customer's
increasing demands and to be applied in many circumstance as well. |
| JDB-1 |
| Base
material |
CuZn24AL6Mn4 |
| Base
hardness |
HB230(HB270) |
| Friction
coef |
<0.16 |
| Temp
limit |
300°C |
| Dynamic
load limit |
100N/mm2 |
| Load
limit under lm/min |
25N/mm2 |
| Sliding
velocity limit |
dry
0.4m/s
oil 5m/s |
| PV
limit |
3.8N/mm *m/s |
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Can be used low,middle and high load. When
under
high load, wear peformance degrades accordingly.
It's a general-purpose product and be applied under low or
high pressure, low or high temperature, and oil, water or
dry lubrication.
Can be applied in consistent cast machine, rolling machine,
conveyor equipment; plastic injection machine, high voltage
switch; hoisting supporter, hydraulic gate supporter; paper-making
machine, automobile die etc. |
| JDB-2 |
| Base
material |
CuSn6Zn6Pb3 |
| Base
hardness |
HB90 |
| Friction
coef |
<0.15 |
| Temp
limit |
350°C |
| Dynamic
load limit |
60N/mm2 |
| Load
limit under lm/min |
15N/mm2 |
| Sliding
velocity limit |
2m/s |
| PV
limit |
0.5N/mm*m/s |
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Suitable for low load position,wear performance
worsens greatly when under middle or high load.
Can be applied in furnace door lindge, furnace, conveyor,
tool machines, light industries, etc. |
| JDB-3 |
| Base
material |
CuSn6Zn6Pb3 |
| Base
hardness |
HB80 |
| Friction
coef |
<0.14 |
| Temp
limit |
300°C |
| Dynamic
load limit |
70N/mm2 |
| Load
limit under lm/min |
20N/mm2 |
| Sliding
velocity limit |
2m/s |
| PV
limit |
0.6N/mm *m/s |
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Suitable for lowload position,wear performance
worsens when under middle or high load. The mating layer is
same as JDB-2 so that more cost-saving than JDB-2 whereas
compression strength increases and weldable. Most suitable
for dry position in construction, metallurgical machines,
conveyor machines etc. |
| JDB-4 |
| Base
aterial |
HT-250 |
| Base
hardness |
HB210 |
| Friction
coef |
<0.17 |
| Temp
limit |
400°C |
| Dynamic
load limit |
60N/mm2 |
| Load
limit under lm/min |
15N/mm2 |
| Sliding
velocity limit |
0.5m/s |
| PV
limit |
0.8N/mm *m/s |
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Very good performance when under low load.
Not suitable for middle and high load.
A typical cost saving material, can substitute JDB-2 to be
applied in the position without high requirements such as
die guider, plastic injection machines etc. |
| JDB-5 |
| Base
material |
GCr15 |
| Base
hardness |
HRC60 |
| Friction
coef |
<0.17 |
| Temp
limit |
350°C |
| Dynamic
load limit |
250N/mm2 |
| Load
limit under lm/min |
70N/mm2 |
| Sliding
velocity limit |
0.1m/s
|
| PV
limit |
2.5N/mm*m/s |
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Can be used under low,middle and high load.
Due to its superb high hardness, when under high load, it
overperforms than other JDB type.
Not suitable for water,acid,ahkili circumstances.
Most suitable for the supporting position of hoisting machine,
e.g. bulldozer supporter, hoister supporter, reeling machine
supporter etc. |
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