Metal plastic polymer
SF-1D oilless lubricating bearing (hydraulic type)
SF-1D oilless lubricating bearing (hydraulic type)
Product parameters
Substrate properties
SF-1D oilless lubricated bearings (hydraulic-specific) materials
have been developed to meet the needs of high-load,
fluid-lubricated hydraulics. Special additions have been added to
PTFE wear-resistant materials for SF-1D oilless lubricated bearings
(hydraulic-specific) The lipophilic fiber makes the material more
resistant to cavitation and fluid corrosion than the general PTFE
bearing; at the same time, under the condition of fluid
lubrication, the friction factor of this material is extremely low
and the wear resistance is better. Higher PV values can be
achieved.
Material organization
1. The mixture of PTFE and fiber is 0.01~0.03mm, which can form a
good transfer film to protect the grinding shaft and provide
self-lubricating performance of the bearing.
2. The copper powder layer is 0.20~0.35mm, which has good bearing
capacity and wear resistance. Good thermal conductivity can
transfer the heat generated during the operation of the bearing.
The composite material can penetrate into the gap of the copper
powder ball to improve the bonding strength.
3. Low carbon steel provides good load bearing performance and heat
transfer.
4. Copper/tin plating layer is 0.002mm, which makes it have better
corrosion resistance.
Technical Parameters
| Bearer | Static bearing | 250N/mm2 | Coefficient of friction | Dry friction | 0.08~0.20 |
| Low speed operation | 140N/mm2 | Fluid lubrication | 0.02~0.08 |
| Rotation, rocking motion | 60N/mm2 | Line speed | Dry friction | 2m/s |
| Fluid lubrication | >2m/s |
| PV value (dry friction) | Intermittent operation | 3.6N/mm2*m/3 | Thermal Conductivity | 42W(m*K)-1 |
| Long-term operation | 1.8N/mm2*m/3 |
| Operating temperature | -195℃~+280℃ | Linear expansion coefficient | 11*10-6*K-1 |
Oilless sliding bearing refers to a special bearing
Oil-free bearings (oil-free plain bearings) are used for plain
bearings. Oil-free lubricated bearings are designed for
self-lubricating, oil-free bearings, smooth operation, reliable,
and noise-free. Liquid lubrication conditions, separated from the
lubricant does not directly contact the sliding surface, you can
greatly reduce friction loss and surface wear, this film also has a
certain degree of impact absorption.
But greater starting friction. The shaft portion of the bearing is
called the shaft diameter portion, called the bush and the shaft
diameter go together. In order to improve the friction bearing
surface properties of the friction material of the inner surface
layer of the casting, it is called a bearing lining.
The materials for the bearings and bearing linings are collectively
referred to as bearing materials. Bearing applications typically
load conditions, maintenance and lubrication or difficult operating
areas at low speeds and weights.
