What is the range of FAG cross roller bearings?

FAG bearing cross-roller bearings can withstand loads from all directions (such as axial, thrust or momentum loads). Since the FAG is in contact with the outer surface of the track, the bearing is subject to load and elastic deformation is small.

This type of FAG imported bearings are commonly used in industrial robots, mission machinery and medical facilities. FAG requires high rigidity, tightness and high speed to ensure accurate position in cross roller bearings, because cylindrical rollers are in The 90-degree V-groove rolling surface FAG bearings are arranged perpendicular to each other by the distance maintaining device, so that one cross-roller bearing can bear loads in all directions such as radial load, axial load and moment load.

The size of the inner and outer rings is minimized, and the special ultra-thin type is a small size close to the limit and has high rigidity, so it is most suitable for the joint portion or the rotating portion of the industrial robot.

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Skf bearing products deep groove ball bearings commonly used suffix

The standard products provided by skf have various types of skf bearings of 20,000. In addition to rolling skf bearings, skf group also manufactures linear bearings, plain bearings, bearing housings, ball and roller screws, textile machinery parts, and retaining rings. , machine tools and various precision mechanical parts. With extensive experience in these areas, he has the knowledge and expertise to develop, manufacture and apply a wide range of advanced engineering products.

The small ones are only 0.003 grams of miniature bearings, roughly 34 tons of giant skf bearings. In addition, skf also provides a number of bearing repair tools, grease and bearing testing equipment, in order to make skf imported bearing users get higher efficiency and achieve worry-free operation.

Skf bearing featured product explorer series bearing, this series of skf bearings has better performance and longer life than any brand on the market. It has been outstanding in design and use. It is the top scientist of skf engineering and research center in the Netherlands. After years of careful research by the engineering team, the skf explorer bearing shell is identified by the EXPLORER logo on the outer ring side of the bearing and the EXPLORER logo on the box, but the product number remains unchanged.

Skf bearing products deep groove ball bearings commonly used suffix:

CN: Normal Group Radial Clearance: Usually used only in combination with the following letters to indicate a narrow or offset range of play. H: The narrowed clearance range is equivalent to the upper half of the original clearance range. L: The narrowed clearance range is equivalent to the lower half of the original clearance range. The clearance range of the P offset is equivalent to the composition of the upper half of the original clearance range and the lower half of the next set of clearance ranges.

The above letters are also applicable to the following combinations of gaps into corresponding meanings: C2, C3, C4, C5, for example C2 C2: radial clearance is smaller than the normal group. C3: The radial ranger is larger than the normal group. C4: Radial clearance is greater than C3. C5: Radial clearance is greater than C4.

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Discussion: Serious problems in bearing wear of Raymond mill

  First, improper installation (about 16%)

1. Use brute force during installation. Directly tapping the bearing with a hammer will cause the greatest damage to the bearing; it is the main cause of deformation.

2, the installation is not in place, the installation is biased or not installed to the bearing position, resulting in too small bearing clearance. The inner and outer rings are not in the center of uniform rotation, resulting in a small ball mill of different hearts.

Recommendation: Select an appropriate or professional bearing installation tool, and use a special instrument to detect it after installation.

Second, poor lubrication (about 50%)

According to the survey, poor lubrication is one of the main causes of premature bearing damage, coal gangue crusher. The main reasons include: not adding lubricant or lubricating oil in time; lubricant or lubricating oil is not filled in place; improper selection of lubricant or lubricating oil; inaccurate lubrication method, etc.

Recommendation: Choose an accurate lubricant or lubricant and use an accurate lubrication method for the ball mill manufacturer.

Third, pollution (about 14%)

Contamination can also lead to premature bearing damage, which means that dust, metal chips, etc. enter the bearing. The main reasons include: opening the bearing packaging too early before use, causing pollution; the working environment is not clean during installation, causing pollution; the working environment of the bearing is not clean, and the working medium is contaminated by the impact crusher.

Recommendation: It is best not to disassemble the bearing before use; keep the installation environment clean during installation, clean the bearing to be used; and strengthen the bearing seal.

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Easy maintenance method after fan or computer bearing wear

According to the degree of wear, there are two ways to repair: the first one is only for fans, and the second is for computer trials.

The first type: first clean the dust on the fan, avoid dust from entering the bearing during the installation process, then tear off the self-adhesive of the bearing seal, remove the bayonet on the shaft, and remove the residual in the bearing. Clean the oil with a clean tissue or a soft cloth, then wipe the shaft clean and add a little butter to the bearing. The principle is that it should not be too much to avoid seriously affecting the speed; then the aluminum can of the can is cut off. Cut a disc as large as the diameter, and dig a small hole in the middle that can pass through the shaft, and pad it between the bearing and the bayonet to reduce the axial movement and parallel movement of the bearing. If the gap is large, it is necessary to put a few thickening on the pad to make the bearing's back and forth movement distance below 0.5mm; the last step is to seal the oil seal, add a little butter, and finally put the fan back to the graphics card. You're done.

The second type: the sound of the fan inside the computer case is getting louder and louder because the computer's graphics card fan is worn out due to lack of oil in the bearing, the bearing hole is worn out - the gap between the fan shaft and the bearing is too large, and the axial movement of the fan The gap is too large and the fan blades can move a few millimeters back and forth.

The fan moves axially after the rotation, and the plane of rotation of the blade is also swaying, which not only wears more and more, but also generates a lot of noise. The vast majority of fan failures are due to this. Although it is the most troublesome to change a new fan, but it does not meet the spirit of DIY, and secondly, it is not always possible to find a model that can be replaced.

Of course, fans with such faults are not unrepairable. I will introduce a repair method now. The material is very simple, just a small piece of cans of aluminum and a little bit of butter (the butter should be clean and free of impurities).

1. First clean the dust on the fan to avoid any dust entering the bearing during the installation process;

2. Remove the self-adhesive of the bearing seal and remove the bayonet pin on the shaft;

3. Wipe the residual oil in the bearing with a clean tissue or a soft cloth, and then wipe the shaft clean;

4, add a little butter in the bearing, the principle is to be more than not to avoid serious impact on the speed;

5. Cut the aluminum skin of the can to cut a round piece as the outer diameter of the bearing pin, and dig a small hole in the middle that can pass through the shaft, and pad it between the bearing and the bayonet. The distance that the small bearing moves axially and moves in parallel. If the gap is large, it is necessary to put a few thickening on the pad, so that the front and rear moving distance of the bearing is below 0.5mm;

6. Seal the oil seal, add a little butter, and finally put the fan back into the graphics card.

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