wheel bearing Judgment bearing will use again

Judgment bearing will use again, to bearing damage degree, the machine performance, importance, operating conditions, such as checking cycle later decided. Check the results, if it is found that the bearing damage and abnormal situation, hurt a section to find out the reason, wheel bearing‍ countermeasures. In addition, the inspection results, if there are some defects in it, the bearing can not be used, need to replace new bearing.

A. inner and outer ring, rolling body cage, in which any cracks and debris.

B. inner and outer ring, rolling body which any split.

C. raceway, rib, rolling card significantly hurt.

D. retainer wear or loosen rivets.

E. raceway surface, rolling rust and bruises.

F. surface of rolling, rolling a significant indentation and trace.

A creep of G. inner self aligning ball bearing‍ diameter of surface or outer diameter.

H. thermal discoloration.

I. grease sealed bearings seals and shields to serious damage.                                         ‍

deck crane bearing the main reason for the formation of the spiral line

1 grinding wheel dressing is bad, not chamfered corner, without the use of cooling liquid dressing;

Track 2 table guide lubrication oil too much, cause the work station floating;

3 machine tool accuracy is not good;

4 the grinding deck crane bearing‍ pressure and so.

(two) with the formation of the spiral line

1.V guide not good rigidity, the grinding wheel edge offset, just contact with the work surface;

2 dressing noisy round table reversing speed is not stable, the precision is not high, the grinding wheel is a slightly less edge trimming;

The 3 workpiece itself poor rigidity;

4 wheel is broken too peeled off the sand and angular contact bearing‍ grinding of iron deposition in the grinding wheel on the surface, this should be trimmed grinding wheel with cooling water rinse or wash clean;

5 wheel dressing is not good, local projection etc..

Analysis of causes of bearing grinding traces generated.                                   ‍

wind power bearing examination and judgment

In order to determine the bearing removed can re-use, to check on the accuracy of rotation accuracy, internal clearance, and the mating surfaces, raceway, wind power bearing‍ cage and sealing ring.

About the examination results, can be judged by the bearing or bearing are used in.

Criteria based on the mechanical properties and the important degree and the inspection cycle and different. If the following injury, bearings shall not be re used, must be replaced.

1) bearing parts of the fault and defect.

2) the raceway surface Angular contact ball bearings‍ rolling surface stripping.Show cross spiral line traces the emergence of such traces is mainly due to the bus straight wheel of existence, bump phenomenon, when in grinding, the grinding wheel and the workpiece is only part of the contact, when the workpiece or the grinding wheel reciprocating motion after several times, cross spiral line and the naked eye reproduced on the workpiece performance will be taper roller bearing‍ observed. The helix pitch and workpiece speed, rotational speed of workpiece size, but also with the wheel axis and the guide rail is not parallel to the working table.     

wheel bearing Regular maintenance and inspection of bearing

Play and its performance to maintain long-term to make the bearing fully, must cogent do regular maintenance (check). Through regular check for proper, do wheel bearing‍ early detection of failure, to prevent accidents, is very important to improve the productivity and economy.

1, cleaning

Remove the bearings when the examination, using methods such as photographic appearance record. In addition, to confirm that the remaining amount of lubricant and lubricant sampling, and then cleaning bearings.

A bearing cleaning, rough cleaning and washing, and the metal frame at the bottom of the container placed on the use of.

B, rough when Taper roller bearings‍ washing, use the brush in the removal of grease or oil adhesion. At this point if oil bearing, attention will be due to foreign bodies such as damage the rolling surface.

C, sperm washing, slowly rotating bearings in oil, be careful.

Cleaning agents are commonly used as neutral without water diesel or kerosene, sometimes using temperature as needed, such as lye. No matter what kind of cleaning agents, are often self aligning ball bearing‍ filtered clean.

After cleaning, immediately on the bearing coating antirust oil or antirust grease.                                                                  ‍

deck crane bearing Bearing clearance selection technique

Clearance is an important factor in rolling bearing can work normally, divided into the axial clearance and the radial clearance. Select the appropriate clearance, can make the load in the bearing rolling body between the reasonable distribution; can limit axis (or shell) of the axial and radial deck crane bearing‍ displacement, ensure the rotating precision of shaft; the bearing work at a prescribed temperature; reduce the noise and vibration, to improve the bearing life. Therefore. In the selection of bearings, bearing clearance, must choose the appropriate.

Selection of bearing clearance, should consider the following aspects:

1, the bearing working conditions, angular contact bearing‍ such as load, temperature, speed etc.;

2, on the use of performance requirements (bearing rotation accuracy, friction torque, vibration, noise);

3, the bearing and the shaft and housing bore is in interference fit with the lead to reduction of bearing clearance;

4, when the inner and outer rings of bearing, the temperature difference caused reduction of bearing clearance;

5, because the expansion coefficient of shaft and housing materials of different, resulting in the decrease or increase of bearing clearance.

6, according to experience, the most suitable for ball bearing clearance work to nearly zero; roller bearing should keep a small amount of clearance. At the request of supporting rigid good parts, Thin section bearings‍ bearing preload has certain value. Here is particularly pointed out that, the so-called clearance refers to the bearing clearance, in the actual operating condition. There is also a play called the original clearance, refers to the bearing without clearance. The original clearance than installation clearance. We choose to play, mainly is to choose appropriate clearance.                                                                           

wheel bearing Turntable bearing load

Turntable bearing load on the effects of using precision

To maintain a good state of bearing and the use of performance, maintenance, repair, in order to prevent accidents, ensuring the reliability of operation, increase production, wheel bearing‍ economy. To maintain the best operating conditions of the corresponding mechanical operating standards, regular inspections to maintain in good condition and performance of bearings, maintenance, overhaul, in order to prevent accidents, ensuring the reliability of operation, increase production, economy. To maintain the best operating conditions of the corresponding mechanical operation standard, check regularly. Examination content includes monitoring running state, supplement or Single Row Ball Slewing Bearing‍ replacement of the lubricant, periodic disassembly inspection. As a matter of maintenance in operation, a rotary voice, YRT turntable bearing vibration, temperature, the state of grease and so on. Remove bearing overhaul, the first recorded appearance of the bearings, confirm the remaining amount of lubricant, after sampling inspection by the lubricant, cleaning bearings.

On the basis of efficiency for turntable bearing load on the rotation of the ferrule, working condition, the load ring bear is divided into a fixed load, dynamic load and rocking out load three.

A. fixed load synthetic radial load by raceway parts Full complement cylindrical roller bearings‍ undertaken, and delivered to the shaft or housing appropriate parts of the corresponding range wind appearance. The load bearing in Sweden called fixed bearing load. Unique local fixed load is radial load and the synthesis of relatively static ring. Assume the fixed load. General can choose loose fit.

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deck crane bearing size and Bond

grinding stainless steel, general grinding wheel with No. 36, No. 46, No. 60 middle size is appropriate, the coarse grinding, the No. 36, No. 46 grain size, with 60 grit grinding. deck crane bearing‍ In order to be used for coarse grinding and fine grinding, the No. 46 and No. 60 grain size.

grinding stainless steel wheel has high strength, in order to bear a larger impact load. Vitrified heat-resistant, resistant to corrosion, wheel it made can keep good cutting performance, Angular contact ball bearings‍ moisture resistance, porous, binder for making grinding stainless steel wheel. Grinding tolerance

Concentrated nitric acid stainless steel inner hole, the resin bond grinding wheel manufacturing.                                                       ‍