Bearing with the role is the rolling bearing the geostationary ring and rotating ring respectively and still part of installation (usually bearing) and a rotating part (usually the axis) together consolidation, thus achieving in the rotating load transfer and limited movement relative to the basic task of the stationary system.
In the shaft and the bearing seat, the rolling bearing is required to fix its position in three directions, such as the radial, axial and tangential directions. Radial and positioning to cut through a tight fit to IKO bearing ring realize pick, Hengding hub said axial position only in a few cases the tight fit; the axial spacing parts, such as the end cover and a retainer ring, etc. the axial position defined in the context of clearance.
Hendin said hub should focus on selection with the following four points:
(1) the circumferential surface of bearing rings should have good support and uniform force, in order to reduce the distortion, and give full play to the IKO bearing load capacity.
(2) rings in their mating surfaces cannot slide along the tangent, otherwise it will damage the mating surfaces.
(3) free end bearings must be able to adapt to changes in the length of the shaft and the hole of the bearing seat, which must have the ability to adapt to the axial position in a certain range.
(4) must pay attention to the IKO bearing installation and removal easy, saving time and labor costs.
Allow speed is based on the type of rolling bearing, size, precision, cage type, load, lubrication, and cooling methods, etc.. Bearing table lists the standard precision bearings in oil lubrication and grease lubrication under the allowable speed. Usually, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high speed operation.
Bearing size accuracy and rotation accuracy are based on ISO and JIS standards. Requirements for high precision and high-speed operation of the machinery, it is recommended grade 5 or above precision bearing, deep groove ball bearing, a centripetal thrust ball bearings or cylindrical roller bearing is applicable to high running accuracy of mechanical. The elastic deformation is generated when the rolling element of the IKO bearing and the contact surface of the rolling path are pressed. Some machines need to minimize elastic deformation. The roller bearing is smaller than the elastic shape of the ball bearing.
In addition, in some cases, the rolling bearing should be applied to increase the rigidity of the bearing. Hengding hub said the program is usually used for deep groove ball bearing, a centripetal thrust ball bearings and tapered roller bearing inner ring and the outer ring of bias, bent shaft, shaft or bearing box tolerance variations, combined with errors will lead to the eccentricity of the inner and outer rings. In order to prevent the eccentric angle is too large, the automatic ball bearing, self-aligning roller bearing adjustable bearing seat is better choice. Voice frequency and torque, rolling bearings are based on a high standard of precision manufacturing, so the noise and small torque. Deep groove ball bearings and cylindrical roller bearings used for low voice, low torque occasions with special requirements.
