Bearing Manufacturing Key Techniques

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With the extensive application of modern computer simulation technology and rapid development. Specific practices of this technique is the application of a load bearing composite direction bearing condition, size, lubrication, rotational speed and environmental parameters, as well as bearing the main parameters entered into the computer at the same time, by calculation, to understand the life of the bearing may reach so evaluate whether the combination bearing design. This test method can significantly shorten test time and reduce the human and financial tests, may be performed before the bearing is not manufactured in advance to know the effect of the application is a fast and hassle free test methods. Advanced industrial bearings company SKF, NTN Bearing in simulation technology to achieve the advanced level.

Domestic and international trends

Currently, bearing test methods at home and abroad, there are four: First, the friction and wear test, two test bench, three laboratories (Proving Ground) simulation test 4, the actual running test conditions. Abroad the several test methods are used, but the purpose of the application is not the same, for example, developing a new product, the first to be done friction and wear testing. But if the form of friction and wear without much change, only the dimensions, Loaded conditions change, you only need to do the bench, can be simulated or actual running test. For some parts of the foreign key new products (such as wheel bearings, etc.) very strict assessment, it must be approved by the actual operation test before they were allowed were supporting the use. Swedish SKF, Japan NTN Bearing recent simulation technology, can only substitute bench, simulation or experiment, to shorten product design time and accelerate the progress of product development, but also from the actual operation of the gap. Now, China's bearing industry has carried out friction and wear test, only a Luoyang Bearing Research Institute; bench test has been carried out bearings, Luoyang Bearing Research Institute, Shanghai Institute axis, Hangzhou Bearing Test Center and Wafangdian, Harbin 20 Yu Jiaguo bearing business; expand simulations are Luoyang bearing Research Institute, Hangzhou bearing test Center and the Los axis, Xiang-axis and other enterprises. But to actually be tested only in supporting host companies bearing manufacturer to be made in this regard when requested, such as railway wheels for passenger cars bearing and hub bearings. In short, the domestic in conducting simulation and actual operation test is not widespread, should be further expanded host range or actual operating range for the simulation test early on the agenda for adequate hardware and software ready.

The main contents and objectives

For the simulation, you must first of some representative types of typical products or simulation test bench to find life with the carrier, as a function of operating conditions between then take advantage of this relationship, bearing design and experimental work carried out by computer this is usually only for those very important product to tests conducted. According to China's existing capacity over the next decade is the main objective of railway vehicles bearing, automotive wheel bearing and high speed grinding machine spindle bearing test Simulation, Simulation and gradually have a certain test conditions.