Low Magnification Defect of Bearing Steel
Low Magnification Defect of Bearing Steel
2022年3月24日
Necessity of Selecting lubricant for Bearing Maintenance
Necessity of Selecting lubricant for Bearing Maintenance
2022年3月24日

Generation and Elimination of Noise of one-way Thrust Ball Bearing

  • The judgment criteria vary according to mechanical properties, importance and inspection cycle. In case of the following damage, the one-way thrust ball bearing shall not be reused and must be replaced. In the process of using bearings, grease is very critical. If deteriorated grease is used, it will not only fail to play its due role, but also damage the bearing.Generation and Elimination of Noise of one-way Thrust Ball Bearing
  • Twist the lubricating oil between the thumb and index finger and grind it repeatedly. The better lubricating oil hand feels lubricity, less wear debris and no friction. If it feels a large friction feeling such as sand particles between the fingers, it indicates that there are many impurities in the lubricating oil and it can not be used again. It should be replaced with a new lubricating oil.Generation and Elimination of Noise of one-way Thrust Ball Bearing
  • Raceway sound of one-way thrust ball bearing and its control method raceway sound is a smooth and continuous sound made by the rolling body rolling on the raceway surface when the one-way bearing is running. It is a unique basic sound that will occur in all rolling bearings. 
  • The general bearing sound is the sound of raceway plus other sounds. The raceway sound of ball bearing is irregular, and its frequency is above 1000Hz. Its main frequency does not change with the speed, but its total sound pressure level increases with the speed. For the bearing with loud raceway sound, the sound pressure level of raceway sound decreases with the increase of viscosity;Generation and Elimination of Noise of one-way Thrust Ball Bearing
  •  For bearings with low raceway noise, the sound pressure level changes from decrease to increase when the viscosity increases to more than 20mm2 / s. The greater the rigidity of the bearing pedestal, the lower the total sound pressure level of the raceway sound. 
  • If the radial clearance is too small, the total sound pressure level and dominant frequency of raceway sound will increase sharply with the decrease of radial clearance. The methods to control the sound of raceway are: select low-noise bearings, that is, bearings with small waviness, and carefully select the service conditions. Raceway noise often affects the noise of the whole machinery. Reducing raceway noise can reduce the noise of the whole machinery.Generation and Elimination of Noise of one-way Thrust Ball Bearing
  • The metallurgical quality of unidirectional thrust ball bearing material was once the main factor affecting the early failure of bearing. With the improvement of Metallurgical Technology (such as vacuum degassing of bearing steel), the quality of raw materials has been improved. 
  • The proportion of raw material quality factor in bearing failure analysis has decreased significantly, but it is still one of the main influencing factors of bearing failure. Proper material selection is still a factor that must be considered in bearing failure analysis.Generation and Elimination of Noise of one-way Thrust Ball Bearing
  • The main task of failure analysis of one-way thrust ball bearing is to find out the main factors causing bearing failure according to a large number of background materials, analysis data and failure forms, so as to put forward targeted improvement measures, prolong the service life of self-aligning roller bearing and avoid sudden early failure of bearing.Generation and Elimination of Noise of one-way Thrust Ball Bearing
  • The vibration of one-way thrust ball bearing has a significant effect on the failure of bearing. For example: peeling, indentation, corrosion, crack Wear, etc. will be reflected in the bearing vibration detection, so the vibration can be measured by using special bearing vibration measurement devices (frequency analyzer and vibration instrument, etc.), and the details of abnormal vibration can be inferred from the frequency distribution. Generation and Elimination of Noise of one-way Thrust Ball Bearing
  • The measured values are different due to the use premise of the bearing or the installation position of the sensor. Therefore, it is necessary to analyze and compare the measured values of each machine in advance and determine the judgment scale.
Generation and Elimination of Noise of one-way Thrust Ball Bearing

Generation and Elimination of Noise of one-way Thrust Ball Bearing

1. Cause: the inner shell of the bearing runs. Method: replace the bearing and related worn parts

2. Cause: poor lubrication method: select the specified brand of lubricating materials and clean them properly

3. Cause: the belt is too tight. Method: adjust the belt to make it elastic properly

4. Cause: the main shaft is bent or the box hole is not concentric. Method: repair the main shaft or box

5. Cause: low assembly quality method: improve assembly quality

6. Cause: low bearing accuracy method: select the bearing with specified accuracy grade

7. Method of excessive axial force: clean and adjust the clearance of sealing ring between 0.2 ~ 0.3mm, correct the diameter of impeller balance hole and verify the static balance value

8. Bearing damage method: replace the bearing

Technical requirements for Timken non-standard bearing

Thrust ball bearing

Thrust ball bearings are separable, including a shaft washer (fit with journal), a housing washer (fit with bearing block), a group of steel balls and a cage, this makes it very convenient to fit with a journal and bearing block respectively. LYC’s thrust ball bearings have different structures and can be divided into single direction thrust ball bearings, double directions thrust ball bearings and angular contact thrust ball bearings.

Thrust ball bearing

Parameters of Thrust ball bearing

New domestic modelsOld domestic modelInner diameter (mm)Outer diameter (mm)Width(mm)Cr(kN)Cor(kN)Grease lubrication speed (r/min)Oil lubrication speed (r/min)Weight (kg)
5110081001024910146500100000.02
5110181011226910.315.46500100000.022
5110281021528910.516.8610094000.024
5110381031730910.818.2610094000.028
51104810420351014.224.7510079000.04
51105810525421119.537.2440068000.059
51106810630471120.442.2430066000.068
51107810735521220.444.7390060000.09
51108810840601326.962.8340053000.12
51109810945651427.869.1320050000.15
51110811050701428.875.4310048000.16
51112811260851741.4113260040000.29
51113811365901741.7117240037000.34
51114811470951843127230036000.36
511158115751001942.3127220034000.42
511168116801051944.6141210033000.43
511178117851101945.9150210032000.46
511188118901202259.7190190029000.68
51111811155781634.893.1280043000.24
5111990120220.64
5112081201001352585268160025000.99
51200820010261112.717.1570088000.03
51201820112281113.219540083000.034
51202820215321216.624.8490075000.046
51203820317351217.227.3490075000.053
51204820420401422.337.7390060000.082
51205820525471527.850.4360055000.12
51206820630521629.358.2340052000.15
51207820735621839.278.2290045000.22
51208820840681946.998.3270042000.27
51209820945732047.7105260040000.32
51210821050782248.5111230036000.39
51211821155902569.4159210032000.61
51212821260952673.6179190030000.69
512138213651002774.8189190029000.77
512148214701052773.6189180028000.81
512158215751102777.4209180027000.86
512168216801152878.5218170026000.95
512178217851253192.3251150023001.29
5121882189013535117326140021001.77
5121995140402.2
51220822010015038147410120019002.36
5130483042047180.13
51305830525521835.761.4310048000.18
51306830630602142.878.7270042000.27
51307830735682455.5105240037000.39
51308830840782669.3135210033000.55
51309830945852880163190030000.69
51310831055953191.6186180027001
5131183115510535119246160024001.34
5131283126011035124267150023001.43
5131383136511536128287140022001.57
5131483147012540148339130020002.06
5131583157513544171396120019002.68
5131683168014044176424120018002.82
5131783178515049206489110017003.66
5131883189015550213524100016003.88
5131994160524.5
5132083201001705523659694014505.11
51405840525602455.689.4260040000.34
51406840630702872.8126220034000.53
51407840735803287.1155190029000.79
514088408409036113205170026001.14
5140984094510039130242150023001.47
5141084105011043148283140021001.99
5141184115512048178359120019002.64
5141284126013051201397110017003.51
5141384136514056232493100016004.47
514148414701506025055394014505.48
514158415751606525256088013506.75
514168416801706827062181012507.97
514178417851807230775378012009.29
5141884189019077327826710110011
51419942008011.8
5142084201002108536898362095014.6

Cooperation Brands

Thrust Ball Bearing

SKF Thrust ball bearing

Timken Thrust ball bearing

NSK Thrust ball bearing

NTN Thrust ball bearing

Thrust Ball Bearing

Koyo Thrust ball bearing

NACHI Thrust ball bearing

Product Description of Thrust ball bearing

Application of Thrust ball bearing

  • Ball thrust bearings are suitable for high speed applications and light loads for high precision applications.
  • Thrust ball bearings provide extremely low friction, cool running and quiet operation at high speeds and are less sensitive to misalignment.
  • Precision ground and polished steel balls are surrounded by hardened and ground steel seats and separated by bronze cages.
  • Other materials can be specified as needed to suit specific application requirements.
  • Applications in fluid control valves, machine tool tables and spindles, oil and gas rotary tables

Automotive-industry

Motor field

Motor field

Medical equipment

Medical equipment

Wind power

Wind power

Mechanical

Mechanical

Instrument

Instrument

Shipping & Package of Thrust ball bearing

Shipping port: Qingdao/Tianjin
Supply Ability: 100,000 pieces per month
Package:

  1. Plastic bag + single box + carton + plywood pallet
  2. Neutral industrial packaging + neutral carton packaging + pallet
  3. According to customer requirements
Package
Package

Why choose us

  1. Sample requirements: Contact us via email or trade manager, we will send samples according to your requirements.
  2.  World-class bearings: We provide customers with world-class quality domestically produced bearings.
  3. OEM or non-support bearings: As we have a wealth of knowledge and connections in the industry, we can easily meet any requirements for non-standard bearings.
  4. Outstanding quality of genuine products: The company has been proving that it provides 100% quality products with genuine intentions.
  5.  After-sales service and technical assistance: The company provides after-sales service and technical assistance according to customer requirements and needs.
  6. Fast delivery: The company provides on-time delivery through its streamlined supply chain.
  7.  Cost-saving: We provide long-life, anti-vibration, high-reliability bearings with high quality and better performance. This increases cost savings.
  8.  Answer customers’ questions in time: We believe that if customers are satisfied, it proves our value.
    Customers always get fast support.

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FAQ

Due to their internal design, ball bearings cannot usually be disassembled down to the component level; therefore, they cannot usually be refurbished.

Solid base shells are manufactured without cavities and fillers; they are stronger than hollow bases, and there are no traps for bacteria and fungi to grow. In the thermoplastic shell, the sturdy base will not break under steam or high-pressure washing. The hollow base saves material and weight to reduce costs. Some people use epoxy resin to backfill the hollow base to eliminate the trap of bacteria breeding, but this will not increase the strength, will cause the installation surface to be uneven, and water will seep between the shell and the filling material, causing cracking.

Use particularly thermally stable bearing rings, larger internal clearance (C4), specially selected lubricants that will not decompose at high temperatures, and zinc anodized flinger. There are two basic versions of our high temperature bearings. The suffix “C4HR5” represents the bearing that can withstand 400°F, and the suffix “C4HR23” represents the bearing that can withstand 450°F.

For critical applications such as pulp and paper processing, printing and packaging, material tearing can cause expensive downtime due to excessive torque and vibration.

The two biggest factors affecting the starting and running torque of the bearing are the seal design and lubricant selection. The shaft and bearing seat fit, component accuracy and surface finish, and retainer design also have some influence.

In higher speed applications, non-contact sealing devices are usually required to minimize operating torque and heat generation, so oil baffle rings and secondary sealing devices are usually required. Flowing oil lubrication systems are usually the best solution.

After proper installation, most seated bearings only need to be relubricated regularly with a small amount of grease and checked to ensure that they operate at low temperatures, quietness, and sufficient accuracy.

This depends on many factors, such as the application’s load conditions, operating speed, duty cycle, temperature, and operating environment. The technical information section of this website provides some basic information. Our engineers can help you determine more specific theoretical life calculations.

When noise and/or operating temperature increase or operating accuracy decreases, bearings should be replaced.

Lubricant of choice
Lubrication joint type or location
Sealing materials and design options
Dimensions, suitable for housing or insert
Fixing screw options
Paint the shell in any color

Too little or too much lubricant
Incorrect lubricant type
Poor bearing installation
Improper internal clearance
Excessive load and/or speed
Extreme temperature
Pollution
Movement between mounting surfaces

The noise emitted by the bearing may be caused by a combination of one or more factors, such as insufficient working clearance, excessive working clearance, changes in working clearance due to temperature, damage to the contact area, contamination, inappropriate lubricants or The raceway is damaged.

Lubricants have five basic functions for bearings:

Reduce friction
Reduce wear
Reduce temperature rise
Minimize corrosion
Seal contaminants

We do not recommend mixing grease. Mixing incompatible greases will cause the mixture to harden, preventing it from releasing any oil. Mixing incompatible greases can also soften the mixture, which releases all the oil. In either case, the mixture will not be able to properly lubricate the bearing. We strongly recommend using the same type of grease originally provided with the bearing.