How to choose the Self Lubrication Bearing suitable for your equipment?

Choosing a Self Lubrication Bearing suitable for your equipment is an important part of ensuring the long-term and stable operation of mechanical equipment. Self-lubricating bearings do not require frequent refueling and are suitable for high temperature, high load or difficult to maintain environments. In order to select the right type, you need to consider the following aspects comprehensively:

1. Understand the working conditions of the equipment
First, the working conditions of the equipment should be clarified, including:
Load type and size: Is it a radial load or an axial load? Is it an impact load?
Movement mode: Is it rotation, swing or linear motion?
Speed ​​range: High speed or low speed operation?
Working temperature: Normal temperature, high temperature or low temperature environment?
Environmental factors: Is there dust, water vapor, chemical corrosive substances?
This information will directly affect the selection of bearing materials and structural design.

2. Master the types and characteristics of self-lubricating bearings
Common self-lubricating bearings mainly include the following categories:
Metal-based composite self-lubricating bearings
Such as copper alloy inlaid with graphite, steel-backed polytetrafluoroethylene (PTFE) coating, etc., have good load-bearing capacity and wear resistance, suitable for medium and high load occasions.
Polymer self-lubricating bearings
Made of materials such as nylon, POM, PEEK, etc., they are light and corrosion-resistant, but have low load-bearing capacity and are suitable for light loads, low speeds or chemically corrosive environments.
Powder metallurgy oil-containing bearings
Use porous structures to store lubricating oil and slowly release it during operation, which is suitable for medium and low speeds and light to medium loads.
Solid lubricating bearings
The surface is coated with solid lubricants such as MoS₂, WS₂, and graphite, which are suitable for use in high temperature, vacuum or extreme environments.
Each type of self-lubricating bearing has its scope of application and needs to be matched according to specific applications.

3. Size and installation requirements
Accurately measure the installation space to ensure that the inner and outer diameters and widths of the bearings meet the requirements of the equipment.
Consider the installation method (such as press fit, retaining ring, flange type, etc.) to ensure easy replacement and maintenance.
Pay attention to the matching clearance to avoid affecting performance due to over-tightening or over-loosening.

4. Life and maintenance cycle evaluation
Although self-lubricating bearings reduce the frequency of lubrication, their expected service life still needs to be evaluated:
Estimate the wear rate according to the life calculation formula provided by the manufacturer.
Consider the maintenance cycle of the equipment and select bearings with a life greater than or equal to the maintenance cycle.
For key parts, products with higher performance grades can be selected to improve reliability.

5. Brand and cost-effectiveness analysis
Select suppliers with good reputation and mature technology to ensure product quality and technical support.
Consider the purchase cost and use cost (such as maintenance costs and downtime losses) comprehensively, and give priority to products with high cost performance.

6. Actual testing and verification
Before formal batch application, it is recommended to conduct small-scale trials or laboratory simulation tests to verify the performance of bearings under actual working conditions, including:
Operating noise
Temperature rise
Friction resistance
Wear degree
Optimize the selection plan through test data feedback.

Selecting suitable self-lubricating bearings requires systematic analysis of multiple factors such as equipment conditions, bearing types, dimensional accuracy, service life and economy. Only on the basis of a full understanding of application requirements, combined with technical parameters and actual test results, can the most matching bearing products be selected, thereby improving equipment operation efficiency, extending service life and reducing maintenance costs.