Self-Lubricating Multilayer Composite Bushing
Carbon Steel + Copper Powder + (PTFE + Pb + Filler)
Carbon-based lead-free lubricating bearings Cylindrical PTFE Sleeve Bushes | VSB-10
VIIPLUS VSB-10 is backed with copper-plated steel with porous bronze sintered on the steel and polymes (PTFE+Pb) imbedded into the bores of the bronze. By combining the metals and the polymers together, its products are endowed with the lower friction coefficient and good capacity of anti-abrasion and self-lubrication. Moreover, the steel back is plated with a erosion-prevention layer. Products of VSB-10 series are widely applied in printing, weaving and tobacco producing machines, gymnastic equipments, etc.
Carbon-based lead-free lubricating bearings Cylindrical PTFE Sleeve Bushes have same features as the VSB-10, but without lead.
Typical application
Typicai applicaton
Application: the printing, woven, tobacco and gymnastic machinery, etc.
same application as the normal VSB-10, but much more for automotive industry, food industry, medicines, drink machines and so on which not allowed to use the lead and difficulty forming the oil film or need lubrication parts.
| Performance Index |
Data |
| Max Load |
Static Load |
250N/mm² |
| Max Load |
Dynamic Load |
140N/mm² |
| Max Load |
Oscoillation Load |
60N/mm² |
| Linear Velocity V |
Dry Lubrication |
2.5m/s |
| Linear Velocity V |
Oil Lubrication |
>5m/s |
| PV value limit |
Dry Lubrication |
1.8N/mm²· m/s |
| PV value limit |
Oil Lubrication |
3.6N/mm²· m/s |
| Friction coef μ |
Dry Lubrication |
0.08~0.20 |
| Performance |
Data |
| Friction coef μ |
Oil Lubrication |
0.02~0.12 |
| Mating Axis |
Hardness |
>220 HB |
| Mating Axis |
Roughness |
Ra=0.4~1.25 |
| Working temperature |
-200~+280℃ |
| Thermal conductivity |
40W/(m·k) |
| Coefficient of linear expansion |
11×10-6K-1 |
| Outside surface Plating |
copper/tin |
We can also develop according to customers special request while out of this table.
STRUSTURE
Carbon Steel + Copper Powder + PTFE(lead-free)
STRUCTURE AND COMPOSITION
· Metal-Polymer Composite Self-lubricating Bushing Material
· Steel Back + Porous Bronze Sinter +
· PTFE + lead-free
Technical Data
| Dynamic load limit |
140N/mm² |
| Static Load max |
250N/mm² |
| PV limit |
1.8~3.6N/mm²*m/s |
| Speed limit |
＞2m/s |
| Temp.limit |
-195°C~280°C
|
| Friction coefficient |
0.04~0.20 |
MICROSECTION
 |
Sliding layer
PTFE + lead-free
Porous Bronze Sinter
Steel Backing
|
Bearing forms available in standard dimensions
· Cylindrical bushes
· Flanged bushes
· Thrust washers
· Flanged washers
· Sliding plates
viiplus products are widely used in all industrial fields
Widely used in hydraulic and pneumatic industries, forging machine tool industry, plastics machinery industry, lifting and handling machinery, port machinery, office, fitness machinery, textile machinery, food packaging, filling machinery, chemical machinery, printing and packaging, paper making machinery, automobiles, railways Steam locomotives, shipbuilding industries, presses, metallurgical machinery, construction machinery, etc.
