Bearing heating installation method

Bearing heating installation method
First of all, bearing heat installation usually refers to the bearing inner ring on the axis of rotation of the bearing block of heating process, divided into hot charging cold (or hot) and two.
In general, the effect of the former are better than the latter.
The specific heating installation method
Bearing hot charging heating there are four common methods: 1. The bearing oil bath method in to the grid in a container.
Heat oil in a container, remove it after the scheduled time, with a clean flannelette to wipe the grease and attachments, and put it in a shaft as soon as possible.Using oil bath heat when installing bearing installation method, should also pay attention to the following four questions:
(1). Typically, bearing only heated to 100 ° C, the highest temperature not to exceed 120 ° C, and oil must be clean.
(2). The bearing can't direct contact with the bottom of the tank, the best put metal bearing or bearing lift online.
(3). Use the scale interference measurement data of the caliper measuring of bearing inner ring, and in that you can put it in the inner ring to stop heating, so that the inner ring is not going to happen and cooling during operation more difficult to install.
(4). After the installation is complete, the bearing can not blow, but should be under the shade of natural cooling, in order to prevent the inner ring shrinkage fast fracture, and its width direction also will shrink.Shaft nut should therefore be used, or other suitable methods for positioning, in order to prevent the inside circle and clearance between the shaft shoulder.
2. Power frequency eddy current heating method to the bearing on the moving core power frequency heater, open the heater power frequency ac power.
Will bearing inner ring and outer ring due to electromagnetic induction to generate eddy current (current), which generate heat expansion.
3. Oven heating method bearing to be included in the special oven, oven temperature should be constant and uniform.
To set the time, should be take out and set as soon as possible to the shaft.
4.The bearing on the induction cooker heating way heating induction cooker is more suitable for miniature bearing, especially in the absence of the above equipment, such as when the user field replacement bearing, this is a good way.
The induction cooker can be used by professional factory production, and can also be used for domestic cooking ordinary induction cooker.Should be paid attention to in the process of operation, adjust temperature switch to measure and control the temperature.
Compared with the oil heating, electromagnetic induction heating method has short heating time, uniform heating, can timing and constant temperature, clean and no pollution, high efficiency, simple operation and fast advantages.A final note: the so-called hot assembly process is to heat the bearing to enlarge the inner diameter of inner ring, then set to the axis of rotation of the bearing block.
After cooling, the inner ring contraction to work closely with the shaft.Bearing heating temperature should be controlled between 80-100 ℃, the heating time depends on the size of the bearing, typically between 5-10 minutes.
Supplier
BMB Bearings ia a precision bearing enterprise specializing in the production of double row angular contact ball bearings, double row deep groove ball bearings, and single row angular contact ball bearings. The company is a end bearings manufacturer enterprise producing double row angular contact ball bearings in China. Its models cover 3200 series, 3300 series, 3000 series, 3800 series, 3900 series, etc. The product accuracy grades are: P0, P6, P5, P4, and the products are widely applicable.
The company also maintains an extensive inventory of superior roller bearings, ball bearings, Deep Groove Ball Bearings, Selfaligning ball bearing, Angular Contact Ball Bearings, Thrust Ball Bearings and much more.