Rolling Mill Bearings

Four‑row cylindrical rolling mill bearings for ferrous and non‑ferrous metal rolling industry. Heavy‑load FC series bearings for backup roll neck, compatible with oil‑air, oil‑mist and grease lubrication. We provide OEM replacement and wholesale service for steel mills.

Classification :

Cylindrical Roller Bearings

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Rolling Mill Bearings

Rolling mill bearings are heavy‑duty multi‑row bearing units made for metallurgical rolling equipment. They run under high‑temperature, heavy‑shock and continuous heavy‑load conditions, most widely used on backup roll necks of hot rolling mills and cold rolling mills.

Strict interchange dimensions and high fatigue resistance for long‑term steel‑making cycles
Available precision grades: P4, P5, P6 to match different mill operating requirements
C3 / C4 enlarged clearance options to compensate thermal expansion under hot‑rolling conditions
Factory direct supply, support OEM production according to drawings or physical samples

Proper selection must consider working temperature, radial load, rolling speed and housing fit tolerance. Our engineering team can assist model confirmation if you provide equipment working parameters.

Popular Rolling Mill Bearing Reference Models

Model Number	Bearing Series	Inner Diameter (mm)	Outer Diameter (mm)	Width (mm)
FC4056200	FC Four‑Row Cylindrical	200	280	200
FC3854168	FC Four‑Row Cylindrical	190	270	168
FCD5272260	FCD Four‑Row Cylindrical	260	360	260
FCP5478280	FCP Split Rolling Mill	270	390	280

The table lists typical hot‑sale references. Click each model link to visit corresponding dedicated detail page for complete dimension table, suffix explanation and full‑range model lists.

Technical Features

Superior heavy radial load capacity for continuous harsh steel‑plant working conditions
Fully interchangeable dimensions matching mainstream imported rolling mill bearing brands
Multiple precision grades: P4, P5, P6 for different mill speed and accuracy requirements
C3, C4 increased internal clearance options to accommodate high‑temperature hot‑rolling environment
Support OEM service, custom production per original part numbers, technical drawings or physical samples

Key Selection Notes

Confirm working temperature, maximum radial load, operating speed and housing tolerance before ordering rolling mill bearings. Hot‑rolling mills normally select C4 clearance grade; cold‑rolling mills mostly adopt C3 clearance based on assembly fit.

For FCP split‑structure rolling mill bearings, strictly follow installation sequence to avoid roller damage during assembly. Send us your equipment working condition description if you are not sure of the correct model.

Application Scenarios

Hot rolling mills, cold rolling mills, steel mill backup roll necks, metallurgical production lines, heavy‑duty steel processing and continuous casting equipment.

Related Product Series

FC Series Four‑Row Cylindrical Rolling Mill Bearing

Popular four‑row cylindrical mill bearing for steel mill backup roll, complete size range, interchange replacement.

FCD Series Double‑Direction Four‑Row Cylindrical Rolling Mill Bearing

Double direction structure, bear radial load plus axial load for metallurgical rolling equipment.

FCP Series Rolling Mill Bearings

Special split‑structure mill bearing, convenient installation and maintenance for steel production lines.

Multi‑Row Tapered Roller Rolling Mill Bearings

Multi‑row tapered roller design for combined radial and axial heavy‑load working scenarios.

Frequently Asked Questions

What types of rolling mill bearings do you supply?

We supply FC, FCD, FCP series four‑row cylindrical rolling mill bearings and multi‑row tapered roller rolling mill bearings for metallurgical steel mill equipment.

Can your rolling mill bearings replace imported brands?

Yes. Our rolling mill bearings keep fully interchangeable dimensions with mainstream imported brands, we can produce according to original part numbers, drawings or samples.

What precision and clearance grades are available for rolling mill bearings?

Precision grades include P4, P5 and P6. C3 and C4 increased internal clearance are widely recommended for hot rolling high‑temperature working conditions.

What is your MOQ for rolling mill bearings?

MOQ depends on specific model. For standard stock models small trial order is acceptable, large bulk order gets better factory price.

Do you offer technical support for installation guidance?

We provide technical data sheet and dimension drawing. Our engineering team can offer technical guidance for selection and installation.

Get Quotation & Technical Support

Tell us your required bearing series, model, working condition and quantity, we will provide competitive factory price for rolling mill bearings.

Category Overview

Cylindrical Roller Bearings are radial rolling bearings with cylindrical rolling elements that make line contact with raceways. They feature high radial load capacity, high rigidity, high-speed capability, and low friction.Most types can accommodate axial displacement between shaft and housing, and some structures allow carrying axial loads. They are widely used in motors, gearboxes, pumps, compressors, machine tools and other heavy‑duty rotating equipment.

Our Series Breakdown

We offer a complete range of cylindrical roller bearing series to suit different positioning and load requirements:

Series	Features	Typical Applications
NU Series	Floating bearing, free axial displacement, high radial load	Motors, fans, general machinery
NJ Series	Locates shaft in one axial direction, high rigidity	Gearboxes, reducers, machine tool spindles
NUP Series	Locates shaft in both axial directions, fixed positioning	Heavy gearboxes, compressors, pumps
N Series	Outer ring with two ribs, inner ring without ribs	General industrial transmission equipment
NF Series	Single-direction axial location, compact structure	Small‑to‑medium gearboxes and motors
RN Series	Without outer ring, fits directly into housing bore	Hydraulic pumps, construction machinery
RNU Series	Without inner ring, fits directly onto shaft	Special transmission mechanisms, compact equipment

Core Advantages

Extremely high radial load capacity and strong impact resistance
High rigidity and excellent high-speed performance
Low friction, stable operation, long service life
Allow axial thermal expansion of shaft (floating types)
Separable structure for easy installation and maintenance
Available in open, sealed and precision grades

🛠️ Typical Applications

Widely used in electric motors, gearboxes, reducers, pumps, compressors, machine tool spindles, fans, rolling mills, automotive transmissions, and other heavy‑duty industrial machinery.

PRODUCT TESTING

Bearing Forging

Bearing Annealing

Turning Process

Quenching

Bearing Assembly

Bearing Clearance Testing

Grease injection

Bearing Marking

Cylindrical Roller Bearings