|Bearing Type||with grooved raceway(s)|
|Bore Dia (d)||20.000||mm|
|Outer Dia (D)||35.000||mm|
|Bore Dia. Clearance (d1)||21.000||mm|
|Outer Dia. Pilot (D1)||35.000||mm|
|Radius (min) (rs)||0.30||mm|
|Dynamic Load Rating (Cr)||14,900||N|
|Static Load Rating (Cor)||26,600||N|
|Max Speed (Grease)||5,300||rpm|
|Max Speed (Oil)||7,000||rpm|
|Material||52100 chrome steel, or equivalent.|
SKF Thrust Ball Bearing
Timken Thrust Ball Bearing
NSK Thrust Ball Bearing
NTN Thrust Ball Bearing
Koyo Thrust Ball Bearing
NACHI Thrust Ball Bearing
When the thrust bearing is installed correctly, its seat ring can automatically adapt to the rolling of the rolling element and ensure that the rolling element is located in the raceway of the upper and lower rings.
If it is installed reversely, not only the bearing will not work normally, but also the mating surfaces will be seriously worn.
Since the difference between the shaft ring and the seat ring is not obvious, extra care should be taken during assembly to avoid mistakes.
In addition, a clearance of 0.2-0.5mm shall be reserved between the thrust bearing race and the bearing seat hole to compensate for the error caused by the non machining and installation of parts.
When the center of the bearing ring is offset during operation, this clearance can ensure its automatic adjustment, avoid contact friction and make it operate normally. Otherwise, the bearing will be severely damaged.
Machine tool spindle, high-frequency motor, gas turbine, centrifugal separator, small car front wheel, differential pinion shaft, booster pump, drilling platform, food machinery, indexing head, repair welding machine, low-noise cooling tower, Electromechanical equipment, painting equipment, machine tool slot plate, arc welding machine
Oil pumps, Roots blowers, air compressors, various transmissions, fuel injection pumps, printing machinery, planetary reducers, extraction equipment, cycloid reducers, food packaging machinery, electric welding machines, electric soldering irons, square boxes, gravity spray guns, Stripping machine, half shaft, inspection and analysis equipment, fine chemical machinery
Shipping port: Qingdao/Tianjin
Supply Ability: 100,000 pieces per month
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
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 temperature rise
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.