How to look at the appearance of NTN bearings

Source: China Bearing Network Time: 2017-12-15

/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

When using NTN bearings, we must first look at the appearance of the imported bearings; to determine whether it meets the specifications we need. Let's share them with us.
The inspection of NTN bearings should be carried out under astigmatism; carefully investigate the surface, cracks and other parts of NTN bearings.
1, a variety of mechanical scars; such as abrasions; scratches, crushes, bumps, etc.; will form NTN bearing device failure; incurs eccentric load and stress gathering; formation of rotation accuracy and the use of life reduction.
2, rust, black skin and pitting; the latter two are the shortcomings of simple storage of water and dirt; the simplest to develop rust. And rust is the source of pollution, early wear and fatigue; severe rust will make NTN The bearing is invalid.
3, a variety of cracks; such as the original data crack; casting cracks, heat treatment cracks and grinding cracks; these cracks in the future NTN bearing operation; will become the source of stress gathering and agile expansion; form NTN bearing break; NTN Bearing life and operational safety have a great impact. In fact; NTN bearings for important applications; NTN bearing factory has 100% magnetic or radiographic inspection of its components.
4, peeling and folding; the two shortcomings are not well connected with the base metal; and there are often different degrees of decarburization or carbon deficient appearance; the data simply collapse, underdentation or wear; NTN bearing life And the accuracy is very arrogant.
5, the quality of the riveting or welding of the cage; the first investigation of whether the rivet head can be biased, tilted, slack, lack of meat or "double eyelids"; the orientation of the welding can be correct; the welding point is too large. Rejuvenation is a vassal of vassal."

Recommend to friends comments close window

Bearing related knowledge

SKF imported bearing transmission bearing dismantling small door how to distinguish the bearing good or bad rolling bearing bearing equipment and sub-common terms and definitions of imported bearing sealing equipment talk about one-way FAG thrust angle touch ball bearing profile

This article links to http://
Please indicate the bearing network http://

Previous:Study on the installation of static pressure imported bearings in the next section: The connection and repair protection of high-pressure suspension roller mill

Flood Light

We diviided the led light according to the using eviiroment. Most of our product is the commercial LED Lighting

Commercial lighting is a term used to describe lighting that is used in commercial spaces, including auto dealerships, distribution centers, churches, factories, offices, and warehouses. Unlike residential lighting, commercial lighting is made to withstand more abuse and has a longer lifespan.

While the focus of residential lighting is often on aesthetics, commercial lighting is task orientated. Commercial lighting systems are designed based on what the application is. For example, in an office-type setting, you may see task lighting, which illuminates specific areas where employees need concentrated light to be able to perform their jobs.

Flood Light,250W Led Flood Light,Led Flood Light 400 Watt,Led Flood Light Solar

Jiangmen Dilin Lighting High-Tech Co., Ltd. , https://www.jmdilinled.com