Cleaning, Installation And Disassembly Of Rolling BearingCleaning, Installation And Disassembly Of Rolling Bearing
Cleaning, Installation And Disassembly Of Rolling Bearing
2021年12月30日
Skf Matched Single Row Angular Contact Ball Bearing
Skf Matched Single Row Angular Contact Ball Bearing
2021年12月30日

Correct Installation And Antirust Method Of Precision Skf Bearing

Precision Skf Bearing

Install the precision SKF Bearing correctly

For the installation of precision SKF Bearing products, pay attention to some things after installation. If it is not installed, the service life of SKF Bearing will not be long. Therefore, if you want to install SKF bearings, you should understand the method of installing SKF bearings, so as to ensure that SKF bearings are damaged during installation. Let me introduce the comprehensive verification method of SKF Bearing installation accuracy:

1. Measure the size of shaft and SKF bearing seat hole to determine Precision Skf Bearing the fit accuracy of SKF Bearing. The fit requirements are as follows,

(1) The inner ring and shaft adopt Precision Skf Bearing interference fit, and the interference amount is 0 ~ + 4 μ M (0 under light load and high precision);

(2) Clearance fit is adopted between the outer ring and SKF bearing seat Precision Skf Bearing hole, and the clearance is 0 ~ + 6 μ M (however, when angular contact ball bearings are used for SKF bearings at the free end, the clearance can also be increased);

(3) The roundness error between shaft and seat hole surface is 2 μ m

(4) The end face parallelism of spacer used for SKF Bearing is 2 μ m

(5) The runout of the inner end face and the outer end face of the shaft shoulder is 2 μ m

(6) The runout of SKF bearing seat hole shoulder to the axis is within 4 μ m

(7) The runout of the inner end of the front cover of the main shaft facing the axis is within 4 μ m,

2、 Rust prevention method

Surface pretreatment method of antirust object:

1) Surface cleaning: proper cleaning methods must be selected according to the properties of the surface to be rusted and the current conditions. Precision Skf Bearing Solvent cleaning, chemical treatment cleaning and mechanical cleaning are commonly used.

2) After the surface is dry and cleaned, it can be dried with filtered dry compressed air, or dried with a Precision Skf Bearing dryer at 120 ~ 170 ℃, or wiped with clean gauze.

Correct Installation And Antirust Method Of Precision Skf Bearing

Method of applying antirust oil

1) Immersion method: some small SKF bearings are immersed in antirust grease and a layer of antirust grease Precision Skf Bearing is adhered to their surface. The oil film thickness can be achieved by controlling the temperature or viscosity of antirust grease.

2) The brushing method is used for outdoor construction equipment or Precision Skf Bearing products with special shapes that are not suitable for soaking or spraying. During brushing, attention should be paid not only to avoid accumulation, but also to prevent missing coating.

3) spray method can not be used to soak some large antirust substances by immersion method. Generally, the filter compressed air of about 0.7Mpa pressure is used for spraying in the clean air area. Spray method is suitable for solvent dilution antirust oil or thin layer antirust oil, but must adopt perfect fire protection and labor protection measures.

Whether the SKF Bearing is installed correctly affects the accuracy, service life and performance. Therefore, the design and assembly department should fully study the installation of SKF Bearing.

It is hoped that the installation will be carried out according to the operating standards. Items of operating standards are usually as follows:

(1) Clean SKF Bearing and SKF Bearing related parts

(2) Check the size and finish machining of related parts

(3) . installation

(4) Inspection after SKF Bearing is installed

(5) . supply lubricant

It is hoped that the SKF Bearing package will be opened just before installation. General grease lubrication, do not clean, directly fill with grease. For lubrication with lubricating oil, it is not necessary to clean in general.

However, SKF bearings for instrument or high-speed use shall be cleaned with clean oil to remove the rust inhibitor coated on SKF bearings. SKF Bearing with rust inhibitor removed is easy to rust, so it can not be placed regardless. Furthermore, SKF bearings sealed with grease can be used directly without cleaning.

The installation method of SKF Bearing varies according to the structure, fit and conditions of SKF Bearing. Generally, because it is mostly shaft rotation, the inner ring needs interference fit. SKF Bearing with cylindrical hole is usually pressed in by press or hot installed. In the case of taper hole, it can be directly installed on the taper shaft or installed with sleeve.

When it is installed on the shell, there is usually more clearance fit, and the outer ring has interference. It is usually pressed in by a press, or there is a cold shrinkage fit method for installation after cooling. When dry ice is used as coolant and cold shrinkage is used for installation, the moisture in the air will condense on the surface of SKF Bearing. Therefore, appropriate anti rust measures are required.