Four row Cylindrical roller bearings

Four-row CRB are one of the main bearings for rolling mills, which consists of three kinds of structures: FC, FCD and FCDP, which have compact structure, good rigidity and high radial load capacity, but cannot take axial load.

Four Row Cylindrical Roller Bearings 


Product Description

Four rows cylindrical roller bearings are installed on roll neck with interference fit especially high rolling speed mill. This bearing geometry allows to be used on bigger roll neck diameter for same roll diameter. It has high radial load capability because of more rollers filling. Four rows CRB only take radial force, so always going together with DGBB or ACBB or radial/thrust TRB, the latter one take axial load. Shaft can move axially again housing within certain limit. Four rows CRB offer couple options considering application and maintenance. All options difference is basically from inner ring and outer ring quantity, outer ring loose fit and integrated rib quantity. Also cage geometry and roller quantity can be different. FC, FCD and FCDP four rows CRB are used for kind of heavy machinery like cold rolling mill and hot rolling mill. Bearing ring and cage/roller assembly are separable which is convenient for leaning, check and installation/removal.

 

Main Types

FC type:  small bearing type (d:90-280 mm). 

This structure consists of one inner ring, two outer rings and four rows of rolling bodies, and two cages. 

FCD type: medium and large bearings (d:250-350mm).

This structure consists of two inner rings, two outer rings, four rows of rolling bodies and two cages. 

FCDP type: with super large bearings (d:390-1000mm).

This structure consists of two inner rings, two outer rings, four rows of rolling body, one middle ring, two edge rings, and four cages. 


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                    FC Design                               FCD Design                       FCDP Design


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To ensurethe production of top-notch bearings, WSA Bearing Company adheres strictly to S0 9001 qualitystandards at every stage of manufacturing. We go the extra mile to guarantee product excellenceby implementing rigorous control measures for all incoming raw materials, with each materialhaving its composition archived and documented. Only qualified products proceed to the nextproduction process, which includes thorough inspections using cutting-edge equipment suchas metallographic testing devices, Oxford roughness profile analvzers, fluorescent flaw detectorsuniversal microscopes,and coordinate measuring machines(CMM).

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WSA bearing line includes cylindrical roller bearings (single row, double row, and four-row), deep groove ball bearings, tapered roller bearings, spherical roller and ball bearings, angular contact ball bearings (single row and double row), thrust roller and ball bearings, all kinds of split bearings and non-standard bearings, widely used in industries such as aerospace, military, railroads, commercial vehicles, industrial manufacturing, ships, machine tools, metallurgical plants, motors, and agriculture. We are dedicated to providing our customers with the highest quality products and services. Our team of experts is constantly innovating and developing to ensure that we remain at the forefront of the industry. Contact us today to learn more about our exceptional products and how we can assist you with your bearing needs.


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