by 
| d | 44.45 mm | Bore diameter |
| d | 1.75 inch | Bore diameter, inch |
| DSP | 85 mm | Outside diameter |
| B | 49.2 mm | Width |
| nG Grease | 9,600 1/min | Limiting speed for grease lubrication |
| Cr | 32,500 N | Basic dynamic load rating, radial |
| C0r | 20,400 N | Basic static load rating, radial |
| Cur | 870 N | Fatigue load limit, radial |
| ≈m | 0.684 kg | Weight |
| C | 22 mm | Width, outer ring |
| C2 | 22.6 mm | Sealing total width |
| S | 19 mm | Distance raceway |
| d1 | 57.91 mm | Rib diameter inner ring |
| Ca | 6.3 mm | Distance to lubrication hole |
| A | 8 mm | Distance thread |
| W | 0.15625 | Width across flats (Inch) |
| f0 | 14.1 | Calculation factor |
SKF Pillow Block Bearings
Timken Pillow Block Bearings
NSK Pillow Block Bearings
NTN Pillow Block Bearings
Koyo Pillow Block Bearings
NACHI Pillow Block Bearings
The code names of the top wire outer spherical ball bearings are: UC200 series (light series), UC300 series (heavy series), deformed products UB (SB) 200 series. If the operating environment is small, usually choose the UC200 series, otherwise use the UC300 series. Usually there are two top wires on the outer spherical ball bearing, and the angle is 120°. Its characteristic is that when it is matched with the shaft, the top wire is pressed on the shaft, and then it plays a fixed role, but it does not cooperate. Environmental needs require small scale. This spherical ball bearing is widely used in various manufacturing industries such as textile machinery and ceramic machinery.
The tapered spherical ball bearing its code name: UK200 series, UK300 series. The tapered bore of this radial insert ball bearing is a 1:12 common bore. It must be used in conjunction with an adapter sleeve. The characteristic of this kind of outer spherical ball bearing is that it can bear a large load. Because the inner diameter of the same type of adapter sleeve is smaller than that of the outer spherical ball bearing with top wire, for example, the inner diameter of the outer screw ball bearing UC209 is 45mm, and the diameter of the shaft used is 45mm. If you change to a tapered outer spherical ball bearing, you can only choose an adapter sleeve with an inner diameter of 45mm, and the tapered outer spherical ball bearing with a 45mm adapter sleeve is only UK210 (of course, if the fit is higher, you can choose UK310). Therefore, the agreement accepted by UK210 should be much larger than UC209.
Spherical ball bearing with eccentric sleeve Its code is: UEL200 series, UEL300 series, SA200 series. The main feature of this spherical ball bearing is that there is a certain degree of migraine at the upper end of the bearing, and a migraine sleeve with the same degree of migraine is matched with it. This kind of bearing can also be said to be a special bearing. Since it is mainly used in agricultural machinery (harvesters, straw returning machines, threshers, etc.), this spherical ball bearing is mainly used for layouts with strong beating force. The coordination of the layout can effectively reduce the strong beating.
Although its basic performance should be similar to that of deep groove ball bearings, because these bearings are mostly used in relatively rough machinery, the installation and positioning are not accurate enough, the axis of the shaft and the seat hole are poorly aligned, or the shaft length is skewed in the case of large grades.
The accuracy of the bearing itself is not high enough, some structures are relatively rough, and the actual performance is lower than that of the deep groove ball bearing of the same specification. For example:
the outer spherical ball bearing with the top wire is used for the through shaft with poor rigidity and large deflection. There are sealing rings on both sides of the bearing to strictly prevent the intrusion of dirt.
Appropriate amount of lubricant, no need to clean before installation, no need to add lubricant, when tightening the top screw of the protruding end of the inner ring of the bearing on the shaft. The allowable axial load shall not exceed 20% of the rated dynamic load.
The performance of the outer spherical ball bearing with eccentric sleeve is basically the same as that of the outer spherical bearing with top wire, but the top wire is not on the inner ring, but on the eccentric sleeve. The inner hole of the outer spherical ball bearing with tapered hole is a tapered hole with a taper of 1:12, which can be directly installed on the tapered shaft, or can be installed on the optical shaft without shoulder through a fixed bushing, and the bearing clearance can be fine-tuned.
Insert spherical bearings are preferred for applications requiring simple equipment and parts, such as agricultural machinery, transportation systems or construction machinery.
It is mainly used to bear combined radial and axial loads mainly based on radial loads. Generally, it is not suitable to bear the axial load alone. Bearings of this type can be fitted with an inner ring (with a complete set of rollers and cages) and an outer ring. This type of bearing does not allow the shaft to tilt relative to the housing, and additional axial forces are generated under radial loads. The axial clearance of this kind of bearing has a great influence on whether the bearing can work normally. If the axial clearance is too small, the temperature will rise; when the axial clearance is large, the bearing is easily damaged. Therefore, special attention should be paid to adjusting the axial clearance of the bearing during installation and operation.
Shipping port: Qingdao/Tianjin
Supply Ability: 100,000 pieces per month
Package：
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.
