PRODUCT
TIMKEN non-standard bearings with technical requirements
by:Waxing
2020-10-24
1, rotational speed and temperature rise: with the development of science and technology, machine tool spindle speed is more and more high, speed range is more and more big, therefore, is becoming more and more high to the requirement of bearing high speed stability.
The temperature rise of the machine tool spindle bearing is an important factor to limit bearing rotating speed.
Normally, the correct choice of non-standard bearing type and tolerance grade, the configuration way, clearance (
Pre-load)
, lubricants and lubrication method, such as size, can to a certain extent, improve the high speed performance of rolling bearings.
Main technical requirements of TIMKEN bearing 2, service life and bearing capacity: for general machine tools, the life of the spindle components is mainly refers to the use of the term to keep the spindle precision, thus, the precision of the bearing is asked to keep the performance to meet the requirements of the spindle component life.
For heavy duty machine tools or strong cutting machine, should first consider the bearing capacity of the non-standard bearings.
Rolling bearings make precision parts, thus a prudent attitude when use requirements accordingly, already became using high-performance bearing, if use undeserved, also cannot achieve the expected performance effect, so the use of bearing that should be paid attention to the following: keep the non-standard bearing and the surrounding environment clean.
Dust into the bearing even invisible to the naked eye smile, also can increase the bearing wear, vibration and noise.
Use should be careful when installed, do not allow the powerful punch, are not allowed to use hammer percussion bearing directly, don't allow through the transfer roller pressure.
Using appropriate and accurate installation tools, use special tools as far as possible, avoid using cloth class and short fiber, things like that.
To prevent corrosion of TIMKEN bearings, directly take bearing with the hand, should fully wash hands sweat, and then coated with high quality mineral oils after rolling bearing inside diameter size and outside diameter size is made according to the standard tolerance, bearing inner ring and the shaft, the outer ring and a hole with tightness can only by controlling the tolerance of the shaft neck and tolerance of hole.
Non-standard bearing inner ring with the shaft with the use of hole system, bearing outer ring with a hole with machine shaft system.
Right choice to cooperate, we must know the actual load condition of TIMKEN bearings, working temperature and other requirements, but in fact it is very difficult.
As a result, most of the time, is according to the use of lapping choice to cooperate.
Between ring and the shaft or the shell of a win depends on the size of the load, heavy load using a larger quantity of a win, a lighter load using a smaller amount of a win.
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