Four Major Causes Of Vibration Damage Of Fag Bearing And Necessary Maintenance Measures
Four Major Causes Of Vibration Damage Of Fag Bearing And Necessary Maintenance Measures
2022年3月2日
Lubricating Oil
What Are the Main Factors that Affect the Operation of Lubricating Oil?
2022年3月15日

The Cleanliness of NSK Bearing is Important to Heating

  • Under popular conditions, the filling amount of NSK bearing grease always exceeds the practical demand of direct intervention lubrication, fills the cavity on the holding frame and the bearing cover of the rolling mill, and forms a contour on the periphery of the rolling element. The Cleanliness of NSK Bearing is Important to Heating
  • During this process, the bearing temperature rises rapidly due to the resistance of excess grease. Although most of the excess grease is squeezed out at the initial stage of operation, and the grease squeezed in the accessories of the raceway may still be migrated and transformed into the rolling element and brought into the raceway.The Cleanliness of NSK Bearing is Important to Heating
  • In the initial stage of rolling mill bearing operation, most of the lubricating grease is quickly squeezed out of the raceway (less than one minute), and the accumulated lubricating grease is discharged in a small amount one after another in the cycle of bearing migration and transformation. The Cleanliness of NSK Bearing is Important to Heating
  • At this time, the NSK bearing temperature continues to rise until all the excess grease is discharged, which can be called the running in stage of grease. According to the quality and filling amount of grease in the bearing structure of the rolling mill, this period may last for more than ten minutes or even several hours.The Cleanliness of NSK Bearing is Important to Heating
  • a. Effect on NSK bearing life:
  • The cleanliness of NSK bearing has a great impact on the service life of the bearing. The bearing company has conducted a special test for this purpose, and the result is that the difference is several times or even dozens of times. The Cleanliness of NSK Bearing is Important to Heating
  • The higher the cleanliness of the bearing, the longer the service life. The tests of others show that the lubricating oil with different cleanliness has a great impact on the service life of the ball bearing. Therefore, improving the cleanliness of lubricating oil can prolong the service life of rolling mill bearing. In addition, if the dirt particles in lubricating oil are controlled below 10um, the service life of bearing will increase several times.The Cleanliness of NSK Bearing is Important to Heating
Nsk Bearings Use Grease For Accuracy And Speed
  • Impact on vibration and noise:
  • Influence on Vibration: NSK bearing test results show that cleanliness seriously affects the vibration level of rolling mill bearing, especially the vibration in high frequency band. The bearing with high cleanliness has low vibration speed, especially in high frequency band.The Cleanliness of NSK Bearing is Important to Heating
  • c. Effect on lubrication performance:The Cleanliness of NSK Bearing is Important to Heating
  • The decline of NSK bearing cleanliness will not only affect the formation of lubricating oil film, but also cause the deterioration of lubricating grease and accelerate its aging, which will affect the decline of lubricating performance of lubricating grease.The Cleanliness of NSK Bearing is Important to Heating
  • Under popular conditions, the filling amount of NSK bearing grease always exceeds the practical demand of direct intervention lubrication, fills the cavity on the holding frame and the bearing cover of the rolling mill, and forms a contour on the periphery of the rolling element. During this process, the bearing temperature rises rapidly due to the resistance of excess grease. Although most of the excess grease is squeezed out at the initial stage of operation, and the grease squeezed in the accessories of the raceway may still be migrated and transformed into the rolling element and brought into the raceway.
  • In the initial stage of rolling mill bearing operation, most of the lubricating grease is quickly squeezed out of the raceway (less than one minute), and the accumulated lubricating grease is discharged in a small amount one after another in the cycle of bearing migration and transformation.
  • At this time, the bearing temperature continues to rise until all the excess grease is discharged, which can be called the running in stage of grease.
  • According to the quality and filling amount of grease in the bearing structure of the rolling mill, this period may last for more than ten minutes or even several hours.

NSK Bearing

With its US headquarters in Ann Arbor, Michigan, NSK is a world-class manufacturer of ball and roller bearings and linear motion products. NSK has factories all over the world, including the United States, Canada, Japan, Asia and Europe. Founded in 1916, NSK has become one of the leaders in the bearing industry with its strong commitment to engineering research, dedication to modern manufacturing processes, and dedication to quality. The bearings provided by NSK include: ball bearings, cylindrical roller bearings, spherical roller bearings, tapered roller bearings, and thrust bearings. Precision products include: linear guides with NSK patented K1 lubrication device, precision ball screws and ball screw support bearings, and ultra-precision bearings.

NSK bearings

Cooperation Brands

 NSK Deep Groove Ball Bearings

 NSK Angular Contact Ball Bearing

 NSK Pillow Block Bearings

 NSK Self-aligning Ball Bearing

 NSK Tapered Roller Bearings

 NSK Needle Roller Bearing

 NSK Cylinder Roller Bearing

 NSK Thrust Ball Bearing

More Bearings

 NSK Spherical Roller Bearing

 NSK Thrust Roller Bearing

Product Description of NSK Bearing

Application of NSK Bearing

1.rail
2.Construction Equipment
3.Machine Tool Bearing
4.Agriculture Bearing
5.steel industry
6.General industrial solutions
7.food
8.Self-driving car
9.robot
10.Industrial Pump
11.Material handling
12.Textile machinery

1.aerospace
2.Cars and heavy trucks-OEM
3.Aftermarket
4.Cement plant
5.Heavy aftermarket
6.Industry Distribution
7.Wind energy

Automotive-industry

Motor field

Motor field

Medical equipment

Medical equipment

Wind power

Wind power

Mechanical

Mechanical

Instrument

Instrument

Shipping & Package of NSK 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.