What should I pay attention to in the installation and maintenance of thin-walled radial contact bearings?

What is thin section radial contact ball bearing?

Thin section radial contact ball bearings are common rolling bearings. Thin section radial contact ball bearings are cylindrical roller bearings that consist of one or more rolling elements surrounding the central axis or forming a cage with other rolling elements, and are fixed by an end cap (or sleeve) in the outer diameter and thickness direction.

Thin section radial contact ball bearings, also known as "oil free deep groove ball bearings," have excellent characteristics such as low friction coefficient, low vibration and noise, and no need for lubrication during operation. Thin section radial contact ball bearings are the key to bearing axial loads. Compared with other bearings of the same specification, this type of bearing has low friction resistance and high speed ratio, making it the first bearing type for customers to choose a model and specification. However, it is not suitable to bear heavy loads, and it is not recommended to use thin-section radial contact ball bearings in some heavy load areas.

Features of thin section radial contact ball bearing

Thin section radial contact ball bearing achieve extremely thin bearing thin-sections, as well as miniaturization and lightweight of products. The diversity of products expands their scope of use.

1. The use of bearings can reduce vibration, reduce noise, prevent pollution, and improve labor conditions in machinery;

2. During operation, a transfer film can be formed to protect the grinding shaft without any biting phenomenon;

3. The hardness requirements for grinding shafts are low, and shafts that have not been modulated can be used, thereby reducing the machining difficulty of thin-walled bearing related parts;

4. The thin-walled bearing structure is lightweight and can reduce mechanical volume. No oil lubrication or low oil lubrication, suitable for places where refueling is impossible or difficult, and can be used without or with minimal maintenance;

5. Good wear resistance, low friction coefficient, and long service life;

6. Thin section bearings have similar static friction coefficients and can eliminate crawling at low speeds, thereby ensuring the working accuracy of the machinery.

Applications of thin section bearings bearings

Thin section radial contact ball bearings have a wide range of applications in modern industry, with the most applications in the automotive field. The main applications in this field are

1. Suspension systems, such as air spring suspension systems and hydraulic suspension systems.

2. Engine components (such as camshafts and valves).

3. Car hubs, gearboxes, and transmission shafts.

What should I pay attention to in the installation and maintenance of thin-walled radial contact bearings?

The installation and maintenance of thin-walled radial contact bearings requires attention to the following aspects:

Installation precautions

Cleaning work: Before installation, it is necessary to thoroughly clean the bearing, shaft, bearing seat and other related parts to remove oil, impurities, iron filings, etc., to prevent foreign matter from entering the bearing, affecting its normal operation and reducing the service life.

Installation tools: Use appropriate installation tools, such as special bearing mounting sleeves, press-fit tools, etc., to avoid directly hitting the bearing with a hammer, so as not to cause bearing damage and affect accuracy and performance.

Fitting fit: In strict accordance with the mounting requirements of the bearing, determine the matching accuracy of the shaft and the inner ring of the bearing, the bearing seat and the outer ring of the bearing. An overtight fit may lead to a decrease in the internal clearance of the bearing, or even seizure; If the fit is too loose, the bearing will slide relative during operation, which will affect the rotation accuracy and may also cause wear and heat.

Mounting position: Make sure the bearing is installed in the correct position to avoid mounting skew. It can be measured and adjusted to make the bearing coincide with the centerline of the shaft and bearing housing, otherwise it will cause uneven load distribution of the bearing, produce additional stress, accelerate the wear of the bearing, and reduce its service life.

Maintenance precautions

Lubrication management: Select the appropriate lubricant and determine the type and viscosity of the lubricant according to the operating conditions of the bearing (e.g., speed, temperature, load, etc.). Regularly check the quantity and quality of lubricant, and replenish or replace lubricant in time to ensure good lubrication effect, reduce friction and wear, and play a role in heat dissipation and rust prevention.

Seal protection: A good seal is the key to prevent external impurities, moisture, etc. from entering the bearing. Regularly check the integrity of the sealing device, if it is damaged or aged, it should be replaced in time to prolong the service life of the bearing.

Temperature monitoring: Thin-walled radial contact bearings should pay close attention to their temperature changes during operation. The temperature of the bearing seat can be measured by installing a temperature sensor or a thermometer on a regular basis, once the temperature is found to be abnormally rising, it may be caused by poor lubrication, excessive load, improper installation, etc., and it is necessary to stop the machine in time to check and eliminate the fault, so as not to cause damage to the bearing.

Vibration and noise monitoring: Regularly monitor the vibration and noise conditions of bearings. Abnormal vibration and noise are often early signals of bearing failure, such as bearing wear, ball cracking, insufficient lubrication, etc., by analyzing the characteristics of vibration and noise, the problem can be found in time and corresponding measures can be taken to avoid further deterioration of the failure.

Periodic inspection: Formulate a regular inspection plan to conduct a comprehensive inspection of the bearing, including visual inspection, clearance measurement, accuracy testing, etc. When it is found that the bearing is damaged, such as wear, cracks, and deformation, it should be repaired or replaced in time according to the degree of damage to ensure the normal operation of the equipment.

Thin section bearings supplier

LTZC provides thin section radial contact bearings and thin section bearings. If you are looking for a supplier of thin section radial contact bearings, please contact us for the latest quotation.