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You are here: Home » News » Technical Knowledge » What is an outer spherical bearing and what are its uses?

What is an outer spherical bearing and what are its uses?

Views: 13     Author: Site Editor     Publish Time: 2023-08-30      Origin: Site

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The outer spherical ball bearing is actually a modification of the deep groove ball bearing. It is characterized in that the outer diameter surface of its outer ring is spherical, which can be fitted into the corresponding concave spherical surface of the bearing seat to play the role of self-alignment. Insert Bearings are mainly used to bear combined radial and axial loads, mainly radial loads, and are generally not suitable for bearing axial loads alone.


016Although its basic performance should be similar to that of deep groove ball bearings, since this kind of 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 is poorly aligned, or the shaft length and deflection In the case of large and small bearings, the precision of the bearing itself is not high enough, and some structures are relatively rough, so the actual performance of the bearings will be considerably discounted compared with deep groove ball bearings of the same specification. For example: the outer spherical ball bearing with top wire is applied to the through shaft with poor stiffness and large deflection. This kind of bearing has sealing rings on both sides, which can strictly prevent the intrusion of dirt. It has been loaded at the factory


Appropriate amount of lubricant, no need to clean before installation, no need to add lubricant, when the jackscrew on the protruding end of the inner ring of the bearing is fastened 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, except that the top wire is not on the inner ring, but on the eccentric sleeve. The inner hole of the tapered outer spherical ball bearing is a tapered hole with a taper of 1:12, which can be directly installed on the tapered shaft, or installed on the optical shaft without shoulder by means of an adapter bush, and the bearing clearance can be fine-tuned.


Insert spherical bearings are preferred for occasions requiring simple equipment and parts, such as agricultural machinery, transportation systems or construction machinery.


It is mainly used to bear the combined radial and axial loads mainly radial loads. Generally, it is not suitable to bear axial loads alone. This kind of bearings can be installed with inner rings (with a full set of rollers and cages) and outer rings respectively. This kind of bearing does not allow the shaft to tilt relative to the housing, and will generate additional axial force under the radial load. The size of the axial clearance of this kind of bearing has a great relationship with whether the bearing can work normally. When the axial clearance is too small, the temperature rise is high; when the axial clearance is large, the bearing is easy to be damaged. Therefore, special attention should be paid to adjusting the axial clearance of the bearing during installation and operation. If necessary, pre-interference installation can be used to increase the rigidity of the bearing.


Insert Bearings Application


Insert spherical bearings are a type of bearings widely used in mechanical equipment. Consisting of inner and outer rings, balls and cages, they are able to withstand complex radial and axial loads, while also being able to withstand rotation and vibration.


Insert spherical bearings are widely used in automobiles, aviation, aerospace, agricultural and industrial equipment and other fields. Among them, the automotive sector is one of the largest markets. Spherical bearings are mainly used in components such as engines, transmissions, rear axles and steering gears. They can withstand high-speed rotation, high temperature, high pressure and high impact loads to ensure vehicle performance and safety


In the field of aviation and aerospace, outer spherical bearings are widely used in equipment such as aero-engines, turbochargers, hydraulic pumps and gyroscopes. They can withstand extremely harsh environments and high-speed rotating loads to ensure the normal operation of aircraft.


In the field of agriculture, outer spherical bearings are used in tractors, harvesters, seeders and other agricultural machinery and equipment. They can withstand vibration, impact and dust erosion, ensuring the stability and reliability of the equipment.


In the field of industrial equipment, outer spherical bearings are used in CNC machine tools, robots, wind turbines and other equipment. They can withstand high-speed rotation and complex loads, ensuring the efficient operation and long-term stability of the equipment.


In short, the outer spherical bearing is a type of bearing widely used in mechanical equipment. It has the ability to withstand complex loads and harsh environments, and is an indispensable basic part for the development of modern industry and technology.