Preparation for lathe SKF bearing installation

Core Tip: It is often the case that some friends use improper methods when installing SKF bearings, resulting in damage to SKF bearings during installation. Today, I will tell you about the lathe SKF bearing before installation.
It is often the case that some friends use improper methods when installing SKF bearings, resulting in damage to the SKF bearings during installation. Today I will tell you about the preparations for the installation of the SKF bearing on the lathe. I hope everyone has to help.

For the correct installation method of SKF bearings, please refer to the article "Introduction to the installation method of SKF bearings".

1. Selection and requirements for the installation site

The installation site should be at a distance from the lathe, grinder and other mechanical equipment. The site should be cleaned and kept dry and clean to prevent iron filings, sand, dust and moisture from entering the bearing.

2. Check the bearing model and prepare the installation tool

Verify that the bearing type and size meet the installation requirements, and select the appropriate assembly method according to the structural characteristics of the bearing and the various components that match it, and prepare the tools and gauges for installation. Commonly used installation tools include hand hammers, copper rods, sleeves, special pads, screw-mosquito fixtures, presses, etc., with vernier calipers, micrometers, dial gauges, etc.

3. Verify the bearing assembly surface

The surface of the bearing assembly and the surface of the part with which it is fitted, if there is a bump, rust layer, wear debris, sand, dust and dirt, one bearing is difficult to install, resulting in incorrect assembly position; second, these attachments form abrasive, easy Abrasive damage to the working surface of the bearing, affecting the quality of the assembly. Therefore, the surface of the journal, the surface of the housing hole, the end surface of the shoulder, and the mating surfaces of the connecting parts such as bushings, washers, end caps, etc., should be carefully inspected before installation. If there is a rust layer, it can be finely smashed, and the fine sand cloth is used to illuminate, and at the same time, the attachment surface of the bearing assembly and the attached parts thereof are also removed.

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NSK bearing periodic inspection method

Core Tip: Regular inspections of NSK bearings are important to maintaining NSK bearings in optimal condition and can also reveal problems. What should be paid attention to when using NSK bearings
Regular inspections of NSK bearings are important to maintaining NSK bearings in optimal condition and can also reveal problems. Regarding the matters and related knowledge that NSK bearings should be used in their use.

First of all, we want to emphasize that it is important to keep the NSK bearings lubricated and clean.
Therefore, before we inspect the NSK bearing, we should clean the surface of the NSK bearing and then remove the parts around the bearing. It should be noted that the oil seal is a very fragile part, so extra care should be taken during inspection and disassembly. Do not apply excessive force to avoid damage to the parts. Then carefully check the oil seal of the NSK bearing and its surrounding parts. If it has been shown to be a bad symptom, be sure to replace it. A bad oil seal will cause damage to the bearing, causing the NSK bearing to be cloudless and causing equipment downtime.

Second, we also check the lubricant of the NSK bearing.
Lubrication is very important, not only for NSK bearings, but also for all imported bearings. However, please note that it is not advisable to add too much grease to FAG bearings.

The inspection method for NSK bearing lubricant is:
Apply a little bit of lubricant to the two fingers. If there is any contaminant, feel it. Or apply a thin layer of lubricant on the back of the hand and check the seal.

Then it is to replace the lubricant of the NSK bearing.

NSK bearings lubricated with oil should be refilled with fresh oil and allowed to rotate at low speed for a few minutes if the old oil is drained. As much as possible, allow the oil to collect the contaminants from the wreckage and then vent the oil. Note: It is best to filter the oil before use.
For NSK bearings that use grease lubrication, the replacement of the grease should be avoided with a cotton joint to any part of the NSK bearing. Since these residual fibers may be wedged between the rolling elements and cause damage, especially the application of small bearings requires attention to this problem.

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