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The plane bearing is installed at the top of the shock absorber, between the spring and the top rubber of the shock absorber. It can withstand the pressure from top and bottom and can rotate freely.
Functions of plane bearings:
1. The movable link between shock absorption and vehicle body
2. Ensure the flexibility of steering
When the vehicle turns and the wheels rotate, ensure that the suspension can rotate with the wheels.
Structure of plane bearings for automobile shock absorbers
1. Automobile plane bearings are composed of rolling elements, shaft rings (tightly matched with the shaft) and seat rings (with clearance from the shaft and tight fit with the bearing seat hole).
Ball type:
Plastic slip ring type:
Lubrication location of automobile plane bearing: between plane bearing cavities.
Working conditions of automotive plane bearings: Plane bearings work in harsh environments (mud and sand, mud and water erosion) and have high working intensity; plane bearings only bear axial loads and do not bear radial loads; since the axial load is evenly distributed on the rolling elements, the plane bearing has a large load-bearing capacity.
Combined with the operating conditions and structural characteristics of the plane bearing of the automobile shock absorber, the grease needs to have the following characteristics:
※ Wide range of high and low temperature performance;
※ Extremely small friction coefficient, excellent extreme pressure resistance;
※ Extremely low evaporation loss and steel mesh oil separation;
※ Good lubricity, small working torque and good adhesion;
※ Excellent water resistance and corrosion resistance, oxidation resistance, long service life;
※ Good compatibility with most plastics and rubbers.
Hecheng Company’s lubrication solution for plane bearings:
A Plastic plane bearing lubrication solution
Select grease made of PTFE thickened high viscosity synthetic oil, and add solid anti-wear materials and structural improvers. It is characterized by good high and low temperature resistance, waterproof and excellent sealing performance. It has good compatibility with plastic materials.
B Metal Ball Flat Bearing Lubrication Solution
The grease is made of polyurea-based thickened refined synthetic oil and added with special anti-wear materials and structural improvers. It is characterized by excellent wear resistance, extreme pressure and water resistance. It can meet the long-life lubrication of bearings.
Bench application testing:
After the test, the grease adhered well in the plane bearing and was fully lubricated. The torque value met the customer’s requirements.
