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Oilless Bearing Lubrication – Custom Engineered Solutions

Lubrication is one of the most important factors determining bearing performance. The suitability of the lubricant and lubrication method has a dominant influence on bearing life.

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oil-free bushings

Lubrication of Bearings

In a bearing, lubrication forms a thin oil film on both the rolling surface and sliding surface to prevent metal-to-metal contact.

Solid lubrication has self-lubricating properties due to the embedded solid lubricant, simple structure, and convenient use, especially suitable for low-speed and heavy-load occasions.

Solid Lubricant vs. Oil Lubricant

In addition to providing reduced friction and wear, solid lubricants offer the advantage of permanent lubrication with no leakages. They generate low amounts of heat and offer low startup torque.
Oil lubrication needs to consider Viscosity, Temperature range, and Evaporative rate.
Solid lubricants are the better choice for more permanent lubrication and hard-to-reach areas.

flange sleeve bushing

Bearings With Solid Lubrication

Oilless bearings have the characteristics of metal bearings with high mechanical strength and good thermal conductivity. The transfer film formed by the embedded solid lubricant during friction will cover the entire friction surface, thereby ensuring the lubrication of the friction surface.

Design structure

The embedded solid lubricant generally does not account for 20% to 40% of the entire friction surface. When it is too large, it will reduce the bearing capacity of the bearing, and if it is too small, the lubrication effect will be poor. The proportion of the area occupied by the solid lubricant embedded in our designed bearings is generally 20%.

Manufacturing process

It is necessary to consider the size of the hole diameter, the arrangement of the holes, the size of the chamfer, etc., according to the structure, but the bearing into the drilling die to punch holes and process the solid lubricant into shape.
After the lubricant is coated with a binder, it is pressed into the hole of the metal-bearing bush
The base material of the bearing can choose cast iron, bronze, and steel according to the working conditions.

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