IKO roller bearing with choice technique essentials and role
by:Waxing2020-11-01
IKO bearing fit is to make the effect of rolling bearing of the stationary ring and rotating ring and stationary part of the installation site (
Usually bearing)
And rotating parts (
Usually the shaft,
Consolidation in together, so as to realize in the condition of rotating relative to the static load and limited movement system the basic task of the system location.
In the shaft and bearing, roller bearing requirements in the radial, axial and tangential direction to three directions such as fixed position.
Through the positioning of the radial and tangential IKO bearing ring tight fit the mining of implementation, the axial positioning only in a few cases with tight fit;
Generally USES the axial spacing parts, such as end cover and retainer could happen on the axial location clearance range.
Choosing cooperation should focus on the following four: (
1)
Bearing ring circumferential surface should have good bearing and force uniform, in order to reduce the deformation, and can give full play to the bearing capacity of the IKO bearings.
(
2)
Ring in its surface can't slide along the tangent direction, otherwise it will damage the mating surface.
(
3)
Freedom end bearing must be able to adapt to changing with the length of the shaft and bearing seat holes, which must have to adapt to the axial location within a certain range of swimming ability.
(
4)
Must pay attention to make IKO bearing installation and easy disassembly, saving time and expenses for the province.
Allow speed is according to the type of rolling bearing, size, precision, cage type, load, lubrication, and cooling way.
Bearing table lists the standard precision bearings allow speed under oil lubrication and grease lubrication.
Usually, deep groove ball bearings, automatic self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation.
Bearing dimensional accuracy and rotation accuracy is according to ISO and JIS standard.
For high-precision and high-speed machines, recommend the use of level 5 or above precision bearing, deep groove ball bearings, angular contact ball bearings and cylindrical roller bearing is suitable for high precision mechanical operation.
Rigidity, when IKO bearings rolling element and raceway contact pressure, will produce elastic deformation.
Some mechanical need to minimize the elastic deformation.
Roller bearing is smaller than ball bearings produced by elastic shape variables.
In addition, in some cases exerted pressure rolling bearing to in order to increase rigidity.
This program is typically used for deep groove ball bearings, angular contact ball bearings and tapered roller bearing inner and outer circle of bias, shaft bending, shaft or the bearing box tolerance changes, mistakes will lead to the eccentricity of the inner and outer ring.
In order to prevent the eccentric Angle is too large, automatic self-aligning ball bearings, automatic self-aligning roller bearings, or self-aligning bearing seat is a better choice.
Voice frequency and torque, the rolling bearing are based on high precision standard production, so the voice and the torque is small.
Deep groove ball bearings and cylindrical roller bearing used for in low voice, low torque has special requirements of the occasion.