Here some professional advice about bearing installation and selection

Various types of bearings have different characteristics due to different designs.There is no fixed mode for bearing type selection due to the specific mounting position of bearing and the variability and complexity of application occasions.In order to adapt to the specific installation position and application conditions of a certain host, the following factors should be considered comprehensively:

1. Dimension space
Mechanical design, generally determine the size of the shaft first, and then choose the bearing according to the size of the shaft.Generally, ball bearings are used for small shafts.Cylindrical roller bearings, spherical roller bearings, tapered roller bearings (ball bearings are sometimes used) are used for the big shaft.

If the radial space of bearing mounting position is restricted, bearings with smaller radial section height should be used.If the axial space of the bearing mounting position is restricted, the bearing with a smaller width can be used.

What's the reason of cross roller bearing temperature raise?

Cross cylindrical roller bearing high temperature is a common fault of rotating equipment, which will reduce the bearing service life and increase the maintenance cost. When the temperature rises fast and the temperature exceeds the standard, it is easy to cause unplanned shutdown or load reduction of the unit, which has a great impact on economic benefits.Therefore, it is the guarantee of the continuous safe operation of the equipment to quickly determine the cause of the fault and take proper measures to solve it.

The reasons for cross cylindrical roller bearings temperature rise are as follows:

First: Does the quality of the lubricant deteriorate?If the lubricating oil viscosity is large, the precision cross roller bearing temperature will increase.

What causes the cross roller bearing fault vibration?

The cross roller bearing fault vibration fault vibration is mainly caused by the following reasons:

1) Excessive load causes excessive deformation of inner and outer rings and rolling body, resulting in vibration - transmission vibration caused by the change of center of rotary axis of cross roller bearing with rolling body position, as well as vibration caused by inaccurate installation or different sizes of rolling body. Generally, such vibration is of low frequency.

2) Nonlinear vibration due to poor lubrication of grease.

What's the slewing bearing performance and characteristics?

Slewing ring bearing is a kind of large bearing which can bear the combined load of large axial load, radial load and overturning moment at the same time.Generally, the swing bearing itself is equipped with mounting holes, lubricating oil and sealing devices, which can meet the different demands of various hosts working under various working conditions.On the other hand, the turntable bearing itself has the compact structure characteristics, easy to guide rotation, simple installation and easy maintenance, which is widely used in large slewing ring such as lifting transport machinery, extractors, construction machinery, port machinery, wind power generation, medical equipment, radar and missile launcher.

Swing ring usually consists of four parts, including inner ring, outer ring, rolling body and isolation block.As the core part adopts slewing bearing, it can bear axial force and radial force at the same time.It has many forms, but its structure is basically the same.

What should be paid attention to during slewing drive loading and unloading?

Now in the market, many different kinds of slewing drive, slewing bearing drive in the process of loading and unloading transportation will encounter all sorts of problems, if improper handling, can cause damage of slew drive, cannot use in machinery production, cause the waste of funds, so What should be paid attention to during slewing drive loading and unloading?

First of all, judging by market reputation manufacturers strength, to know the slewing bearing manufacturer with market reputation, and is not packing up, but because people buy products, have high user experience, users can help enterprises promote the products, under the accumulation of time, products let many people and has a good reputation.

How to repair slewing bearings raceway peeling layer and the tooth ring broken tooth?

Slewing bearings is a kind of large bearing which can bear comprehensive load.However, this part has been used for a long time. Due to the manufacturing quality problems such as the material pores or interlayers, the hardness of the hardened layer and uneven depth of the raceway, etc., or some external reasons, the raceway peeling layer or the tooth ring broken tooth, the equipment cannot work normally.How to fix it?Let me explain to you today!

For raceway stripping, the first to make a correct judgment.The appearance of peeling layer, generally in the outside is not easy to see.Generally, the raceway has stripping layer: when the main engine is carrying the rotation, the raceway has a "cro-crook" sound, and the rotating speed is not uniform or a certain azimuth speed slows down significantly with slight vibration;Too high temperature rise or too high current;Key slots of rotary motors and hydraulic couplers or coupling etc. are jammed.

How to quickly remove the rust on the slewing bearings?

Slewing bearings is widely used and is one of the new mechanical parts.Sometimes, rust will be unavoidable during the slewing bearings operation. How to deal with it?Today we will introduce a few quick rust removal methods.You can refer to that.

The slewing bearings rust will not only affect the appearance of accessories, but also affect the slewing bearings normal use.Therefore, it is necessary to remove rust from slewing bearings.The following methods can be used: