Work Roll Bearings for Rolling Mills

Requirements

Work Roll Bearing Requirements

High Radial Load Capacity

Work roll bearings carry substantial radial loads generated during metal deformation while maintaining stable support for the roll neck.

Speed & Low Heat Generation

Work roll positions may operate at medium to high speeds, making friction, cage design, lubrication and heat generation important.

Rotational Accuracy & Rigidity

Stable roll positioning, low runout and adequate rigidity help maintain strip thickness, flatness and surface quality.

Axial Location & Load Sharing

Some work roll arrangements require separate axial locating bearings, while others use bearings capable of carrying combined radial and axial loads.

Lubrication, Sealing & Maintenance

Cooling water, scale, particles and lubricant condition can affect work roll bearing reliability and replacement intervals.

Types

Recommended Bearing Types

Four-Row Cylindrical Roller Bearings

Primary high-radial-load solution for many work roll and roll neck positions; separable design supports mounting and maintenance.

Four-Row Tapered Roller Bearings

Combined radial and axial load support for work roll positions requiring integrated roll guidance.

Double Row Cylindrical Roller Bearings

Compact, high-rigidity support for work roll positions with limited mounting space or high precision requirements.

Spherical Roller Bearings

Self-aligning support for auxiliary work roll positions where shaft deflection or mounting misalignment must be accommodated.

Thrust Ball Bearings

Separate axial locating solutions for work roll systems where radial and axial loads are supported by different bearings.

Selection

Selection Information

Information Customers Can Provide

Rolling mill type and mill stand
Work roll arrangement and bearing position
Existing bearing brand and number
Roll neck dimensions and ID / OD / width
Radial load, axial load and speed
Required precision or radial runout
Operating temperature and cooling conditions
Lubrication, filtration and sealing method
Quantity
2D / 3D drawing or equipment photo

CHG Assessable Content

Suitable bearing type and internal structure
Locating and non-locating bearing arrangement
Size and adjacent mounting arrangement
Material and heat treatment direction
Precision class, internal clearance or preload
Cage, sealing and lubrication requirements
Speed and heat-generation considerations
Replacement compatibility
Inspection documents and delivery proposal

ADVANTAGES

Why Choose CHG

Large Size Capability

Rolling mill bearings with bore diameter from 100mm to 1600mm for large work roll and roll neck applications.

Work Roll Application Review

Solutions evaluated according to mill type, roll arrangement, radial and axial loads, speed, precision, rigidity and lubrication.

Custom Manufacturing

Custom support by bearing number, drawing, roll neck dimensions, precision requirements, sample information or replacement needs.

Quality & Inspection Support

Material certificates, dimensional inspection, precision inspection, product photos and packing photos can be provided according to order requirements.

Bearings for Hot Rolling Mills

Work roll and roll neck solutions for heat, cooling water, scale, impact and heavy rolling loads.

Bearings for Cold Rolling Mills

Work roll solutions focused on precision, rigidity, low runout, speed and clean lubrication.

Backup Roll Bearings

Heavy-load and high-rigidity solutions for the backup roll position supporting the work roll system.

Roll Neck Bearings

Selection and replacement support based on roll neck dimensions, fits and bearing arrangement.

Roll System Bearing Solutions
Complete review of work roll, backup roll, intermediate roll, roll neck and axial support arrangements.

Talk to an expert

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We typically confirm within 24 hours.

FAQ

Work Roll Bearings for Rolling Mills FAQ

Please provide the mill type, mill stand, work roll arrangement, bearing number, roll neck dimensions, radial and axial loads, speed, precision requirement, lubrication, quantity and drawing if available.

Four-row cylindrical roller bearings and four-row tapered roller bearings are common solutions. Double row cylindrical roller bearings and separate thrust bearings may also be used depending on the roll arrangement and load direction.

The arrangement depends on axial load, thermal expansion, roll positioning, adjacent bearing design and mounting conditions. Please provide the complete roll-system drawing for review.

The bore diameter range is generally from 100mm to 1600mm. Custom dimensions can be reviewed according to drawings and application requirements.

Yes. Please send the original brand, bearing number, dimensions, precision requirement, drawing and operating information for compatibility review.

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