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FC4866220 Four-row Cylindrical Roller Bearing

Heavy-duty four-row cylindrical roller bearing for rolling mill roll neck applications in steel and metallurgical industries.

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FC4866220 Technical Specifications

Bearing Type Multi Row Cylindrical Roller Bearings
Bore Diameter(d) 240mm
Outer Diameter (D) 330mm
Total Inner Assembly Width (B) 220mm
Outer Ring Width (C) 220mm
Dynamic Load Rating (Cr) 1780kN
Static Load Rating (Cor) 4850kN
Limiting Speed (Grease)
Limiting Speed (Oil)
Weight 56.7Kg
Material High-carbon chromium bearing steel (GCr15 / 52100 equivalent)
Cage Type machined brass solid cages
Precision Rating P0 / Normal grade
Clearance Normal clearance (CN)

Product Description

FC4866220 is a four-row cylindrical roller bearing designed for rolling mill roll neck applications. With dimensions of 240×330×220 mm, it provides extremely high radial load capacity and reliable performance in steel mills, continuous casting equipment, and heavy-duty metallurgical machinery.

This bearing is commonly used in medium and large rolling mill stands where high load capacity, precise operation, and long service life are required under continuous production conditions.

Rolling Mill Bearing (FC4866220/C4) Anti – rust & Oil Operation

Key Features

  • FC type four-row cylindrical roller bearing designed for rolling mill roll neck applications.
  • Four-row roller arrangement provides exceptionally high radial load carrying capacity.
  • Separable design allows convenient mounting, dismounting, and maintenance.
  • High rigidity construction helps maintain rolling accuracy under heavy operating loads.
  • Optimized for high-speed rolling mill operation with reduced friction and heat generation.
  • Designed for stable operation under heavy rolling loads and continuous production conditions.

Applications

  • Rolling mill work roll positions
  • Rolling mill backup roll positions
  • Hot strip mills and cold rolling mills
  • Steel plant rolling equipment
  • Metallurgical production machinery
  • Continuous rolling mill stands
  • Section mills and bar mills
  • Heavy-duty steel processing lines

Can FC4866220 be customized?

Yes. OEM customization is available for FC4866220, including internal clearance adjustment, cage design optimization, material upgrades, heat treatment, and application-specific modifications according to rolling mill operating conditions.

What applications use FC4866220 four-row cylindrical roller bearings?

FC4866220 is mainly used for rolling mill roll neck applications, including work rolls, backup rolls, hot rolling mills, cold rolling mills, and other heavy-duty steel processing equipment requiring high radial load capacity and reliable operation.

Service

Shipping

Ocean Freight / Land Transport

Warranty

12-month warranty, extendable to 18 months.

Loading Port

Dalian Port or other nominated port

Packing

Export packing: tube + box + carton + wooden case

Order

Mixed models & small orders welcome

Image for reference only.

Multi Rows Cylindrical Roller Bearings
Four-row Cylindrical Roller Bearing
FC Bearing Dimension Diagram

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