How to do the sealing treatment of KOYO bearings

Writer: Eric Bearing Limited

In order to make KOYO bearings work in a good lubrication and normal environment,give full play to the performance of KOYO bearings in work, and extend the service life of KOYO bearings, so the rolling KOYO bearings must be properly sealed to avoid leakage or lubricant Other impurities such as dust and impurities enter.

KOYO bearing seals can be divided into two types: self-sealing and outer sealing.The so-called KOYO bearing self-sealing means that the KOYO bearing itself becomes a sealing performance device,such as a KOYO bearing with a dust cover, a sealing ring, etc. Such a seal takes up very little space, is easy to install and remove, and has a relatively low cost. KOYO 6208 ZZC3 online , pls click here : 

How to do the sealing treatment of KOYO bearings? 

KOYO bearing non-contact seal: Non-contact seal refers to a seal that does not contact with its related moving parts and has an appropriate gap. This type of seal has little frictional heat and no wear during operation, and is particularly suitable for high-speed and high-temperature occasions. Non-contact seals are often used in various structural forms, such as gap type, labyrinth type and gasket type, suitable for different occasions. The gap of the non-contact seal should be as small as possible.

KOYO bearing contact seal: contact seal is a seal that is in contact with relevant moving parts without gaps. Due to the direct contact between the seal and the joint,the seal has greater friction and heat generation during operation, which is likely to cause poor lubrication of the contact surface and friction damage, resulting in reduced sealing effect and performance.

Common problems and treatment methods of using KOYO bearings

KOYO bearings are widely used in various industries because of their use characteristics, but in the process of use,we often encounter some problems that are more common in KOYO bearing products.

If the bearing lubricating oil is insufficient,add lubricating oil and check whether the oil path is smooth;if the lubricating oil has impurities,clean the bearing,replace with new oil, and clean the filter; if the assembly is poor, the journal and the KOYO bearing Skew, partial load, you can add a gasket at the bottom of the bearing seat; if the bearing clearance is too small, the clearance should be adjusted again.

Shaft heat treatment method If the oil retaining or rubber sealing ring on the shaft is too tight,the position of the back cover of the packing should be adjusted; if there is friction between the shaft and the KOYO bearing cover in the radial direction, the radial clearance between the shaft and the bearing cover should be checked and adjusted, generally 0.25 ~ 0.3mm.

If the oil pipe is clogged and the oil groove is shallow,the pipeline should be cleaned and the oil groove deepened;if the oil temperature is low and the fluidity is poor,the lubricating oil should be replaced according to the ambient temperature; if the oil ring rotates slowly, the oil splashes If the oil ring is bad, check whether the oil ring falls off or scrubs. If the oil level is too high, the oil can be drained to the standard height; if the adjustment gasket blocks the lubricating oil, the position of the adjustment gasket should be checked.

KOYO bearing oil leakage treatment method If there is much oil,adjust the oil supply to maintain the standard height of the oil surface; if the sealing device fails,press the gland,thicken the felt ring or replace the sealing material; if the bearing seat has holes or seepage Oil,the bearing seat should be replaced or the air hole should be blocked by lead filling.

If the bearing clearance is too large,the gasket should be removed and adjusted; if the dynamic balance of the rotating body (gear, tape wheel, etc.) is not good,the dynamic balance should be checked and adjusted; if the bearing is not stable, it should be tight Fix the bearing housing bolts; if the installation deviation of the coupling is large, a gasket should be added to the ground of the bearing housing to adjust the installation accuracy of the coupling.

How to identify common faults of KOYO bearings

As a precision component on mechanical equipment,KOYO bearings,how to want the factory to increase productivity,first of all mechanical equipment performance must be good. Therefore, the factory must carry out a good inspection of the SKF bearings in the mechanical equipment during the production and processing. For safety, the following introduces the identification method of KOYO bearing failure.

If you can identify or predict whether the KOYO bearing is malfunctioning without disassembly inspection,this is very beneficial to improve productivity and economy. Early detection of KOYO bearing failure is of great benefit to mechanical equipment and production. So how can we do this job better?

KOYO bearing failure identification methods mainly include the following:

1.Recognition by KOYO bearing sound Recognition by sound requires extensive experience. It must be fully trained to recognize SKF bearing sounds and non-KOYO bearing sounds. To this end, this work should be carried out by dedicated personnel. The sound of KOYO bearings can be clearly heard by attaching a listening device or a sound stick to the casing.

2.Identification by KOYO bearing operating temperature This method is a comparative identification method and is limited to applications where the operating state does not change much. For this,continuous temperature recording must be performed. When a fault occurs,not only will the temperature rise, but irregular changes will also occur. This method is suitable for use with the voice recognition method.

3.Identify the condition of the KOYO bearing lubricant. Sampling and analyzing the lubricant, and judging whether it is mixed with foreign matter or metal powder by the degree of contamination This method is particularly effective for KOYO bearings or large-scale KOYO bearings that cannot be observed close.