Ina bearings must be installed under dry and clean environmental conditions. Before installation, Problems Needing Attention carefully check the machining quality of the mating surface of the shaft and housing,
the end face of the shoulder, the groove and the connecting surface. All mating connection surfaces must be carefully cleaned and deburred, and the unprocessed surface of the casting must be cleaned of molding sand.
1. After the bearing is installed, the rotation test shall be carried out. Problems Needing Attention First, it shall be used for the rotating shaft or bearing box. If there is no abnormality, it shall be operated at no-load and low speed with power, and then the rotation speed and load shall be gradually increased according to the operation,
and the noise, vibration and temperature rise shall be detected. If any abnormality is found, the operation shall be stopped and checked. It can be delivered for use only after the operation test is normal.
The lubricating base filled in ina bearing configuration will gradually lose its lubricating performance. Therefore, we need to constantly supplement and update the lubrication rank. The interval between lubricant replenishment will vary depending on the formation, size and speed of thrust angular contact ball bearings.
2. During installation, it is not allowed to drill, groove, chamfer and turn the end face on the inlet bearing. Otherwise, it is easy to cause the deformation of the Problems Needing Attention imported bearing ring and affect the bearing accuracy and service life.
At the same time, the cut metal is easy to enter the working surface of the bearing, accelerate the wear of the raceway and rolling element, Problems Needing Attention and cause premature damage to the bearing.
that is, when installed on the shaft, the pressure should be added to the end face of the bearing inner ring; When installed into the bearing seat hole, the pressure should be added to the end face of the outer ring of the inlet bearing. It is not allowed to transfer pressure through rolling element and holding.
4. For the bearing with tight fit inner ring and sliding fit outer ring, if it is of non separable type during installation, install the thrust angle contact ball bearing on the shaft first, and then install the shaft together with the bearing into the hole of the bearing housing; For the separable type, the inner and outer rings can be installed separately.
5. In order to prevent the inclination of bearing installation, the Problems Needing Attention centerline of shaft and bearing hole must coincide during installation. If the installation is not correct and needs to be reinstalled, the INA Bearing must be pulled out through the end face of the inner ring.
The lubricating oil replacement cycle of ina bearing is different due to the service conditions and oil quantity. Generally, when it is used in a good environment with operating temperature below 50 ℃ and less dust, it shall be replaced once a year. When the oil temperature reaches 100 ℃, it shall be replaced once in 3 months or less.
The speed of ina bearing is mainly limited by the temperature rise Problems Needing Attention caused by friction heating inside the bearing, but when the speed exceeds a certain limit, the bearing will not continue to rotate due to burns, etc.
The limit speed of thrust angular contact ball bearing refers to the limit value of speed that can rotate continuously without friction and heating causing burns. Therefore, the limit speed of the bearing Problems Needing Attention depends on the type, size and accuracy of the bearing,
as well as various factors such as lubrication mode, quality and Problems Needing Attention quantity of lubricant, material and type of cage, load conditions and so on.