Selection of long service life rolling bearing

Aug 09, 2023

For users, buying bearings must make the bearings use the longer the better. The longer the service, the better the quality of the bearings, then the customer's entire production will be more stable.

When we choose the bearing we need from the perspective of long term service life. The basic requirement is:

1, Select the bearing model with high load capacity. When selecting the bearing type, it should take into account the price of the bearings, or adopt a bearing with high load capacity but more expensive, or use ordinary bearing to extend its life. Using high-load bearing, such as cylindrical roller bearings with convexity, spherical roller bearings with symmetrical rollers, enhanced cone roller bearings and ball bearings, ball bearings modified by the gap, or 70000cd series of bearing instead of deep groove ball bearings (single-column heart). These high -load bearing may have a high fatigue life due to the number of stress distribution or due to the large number of rolling bodies.

2, Select the appropriate bearing size to make the bearing size appropriate. It is necessary to accurately calculate or actual work load, speed and operating temperature of the actual school nuclear bearing. Load has the greatest impact on the life of the rolling bearings, so although the load is the most difficult to measure, it must be measured as accurate as much as possible. When the load measurement is difficult, the actual consumption power can be measured by measuring the motor, calculate and deduct the power loss along the drive route until it is calculated that it is closer to the actual bearing load. The amount of load calculated or measured is too large, and the expected fatigue life of the bearings must be reduced by a greater amplitude, and it must be remedied. If the installation site is allowed, the bearing with a large size is large; if the radial size is limited, a wider bearing should be selected if a wide bearings; Higher bearing.

3, Choose the appropriate bearing material, and choose the price of the bearing material, and when you have to use a vacuum smelting or electric residue heavy melting steel, you must pay attention to the improvement of lubrication conditions to double the ground to improve the bearings of the bearings. It can expect fatigue life. Of course, the cost of choosing the bearings made by this type of high-quality steel is much more expensive than the choice of bearing with high load capacity, but for the bearing that is difficult to approach and is difficult to disassemble in the machine, or the bearing used in the operation machinery in the mine and the tunnel, sometimes it must be considered when it is extremely difficult.

The above items are introducing the selection and material selection of the bearings. Don't underestimate these professional knowledge, because the appropriate bearings can have a longer use life, and reduce customer's stop maintenance time, reduce losses, bring customers larger economic benefits. If you don't know how to choose bearing and welcome to contact us FV, our engineers will recommend appropriate bearings to you according to your working conditions and specific needs.