Rolling Mill Bearings

Rolling mill bearings are used for rolling industry, with different type of non-ferrous metal industry, ferrous metal industry, non-metallic products rolling industry.

Features of rolling mill bearings is able to safe, stable, continuous operation in the high speed, high impact working state, have long service life.

Normally the rolling mill bearings adopts four-row cylindrical roller bearings to carry radial loads, adopts thrust roller / ball bearings, angular contact ball / roller bearings to carry axial loads.

Rolling mill bearing  also known as Four row cylindrical roller bearings

1 What is a rolling mill bearing?

Rolling mill bearings normally used on the roller above. Rolling mill bearings are used for calendering industry, and non-ferrous metals, ferrous metals and non-metallic products rolling.

Rolling mill bearings are usually four cylindrical roller bearings to withstand radial load, thrust roller or thrust ball bearings and angular contact ball or radial roller bearings to withstand axial load.

Mostly using oil and gas lubrication or oil mist lubrication and grease lubrication cooling.

2 What are the characteristics of rolling mill bearings?

Rolling mill bearings roller and raceway for line contact or repair line contact, the radial load capacity, suitable for heavy loads and impact loads.

Rolling mill bearing friction coefficient is small, suitable for high speed, speed limit close to deep groove ball bearings.

Rolling mill bearings can be moved axially, to adapt to changes in the relative position of the shaft and housing due to thermal expansion or installation errors, can be used for free-end support. The shaft or seat hole processing requirements are higher.

After the installation of rolling bearing outer ring axis relative deflection to be strictly controlled, so as to avoid contact stress concentration. Inner or outer ring detachable, easy to install and disassemble. Steel stamping cage, bearings or high-speed bearings require smooth operation.

Use a solid cage. Depending on the application and user requirements, cages made of fiberglass reinforced plastic can also be designed and supplied.

3 Rolling mill bearing installation

Rolling mill bearing service life is based on the quality of the bearing, but also with the installation and use of the situation is closely related. To this end, attention should be paid to the technical requirements for the installation of rolling mill bearings, and to the operation rules of rolling mill bearings.

Rolling mill bearings before installation (1) Before installation, including the roll neck, bearing housing, bearing rings and bearing housing cover and other surfaces to double-check, check the size, shape and location of the position accuracy with the cover of the cover is designed to meet the technical Claim.

(2) The bearing surface, roller neck, bearing box hole and oil hole edge and burr must be removed, and cleaned and lubricated. Bar mill working conditions of poor, high temperature, dust large, and early due to lack of understanding of the performance of the equipment, the installation and maintenance of rolling mill bearings are not in place.

Often appear rolling mill bearing burn phenomenon and have to re-assembly of the temporary assembly, a serious impact on the bar factory production. Thus, using the correct method of use, reasonable assembly, maintenance of bearings to extend bearing life to ensure the smooth production.

Rolling mill bearing design problems, rolling mill bearing damage and many factors related to the general normal, the typical aluminum foil rolling mill bearing angular contact loss is a worldwide problem, I personally think that lubrication is very important, oil mist lubrication effect slightly better, as well as the problem of bearing installation clearance.

4 Rolling mill bearing grease

Rolling mill bearing grease description:

Rolling mill bearing grease in the rolling mill bearing grease for small and medium-sized mill group of coarse, medium and fine rolling mill bearings, vertical rolling mill bearing lubrication.

Rolling mill bearing grease performance: 

1) has excellent water resistance, to ensure that equipment in the presence of moisture or water protection and lubrication.

2) excellent high temperature resistance, friction parts at higher temperatures or higher ambient temperature grease is not lost.

3) good extreme pressure anti-wear performance, to meet the high load or have a certain impact load of mechanical equipment axis.

Luoyang LBR Bearing Co., Ltd. are focused on bearings, power transmission parts, bearing accessories, pumps parts, shafts. The main product of us as follows: spindle hybrid ball bearings, split ring ball bearing, spray with ball bearing, fc sfc fcd fcdp,block bearing,pillow block bearings.