INDUSTRY COMPONENT

Roller Bearing

Roller bearing is a precision mechanical component that supports rotating shafts in conveyor systems by reducing friction with cylindrical rolling elements.

Component Specifications

Definition
A roller bearing is a type of rolling-element bearing that uses cylindrical rollers to maintain separation between moving parts, specifically designed to carry radial loads with high efficiency. In conveyor belt systems, these bearings are critical for supporting rollers that transport materials, ensuring smooth rotation under varying loads and speeds while minimizing energy loss through friction reduction.
Working Principle
Roller bearings operate on the principle of replacing sliding friction with rolling friction. Cylindrical rollers are positioned between inner and outer rings (races), distributing loads evenly across their surfaces. As the shaft rotates, the rollers roll along the raceways with minimal resistance, reducing heat generation and wear while maintaining precise alignment and load capacity.
Materials
Typically made from chrome steel (AISI 52100/SUJ2) for standard applications, with options including stainless steel (AISI 440C) for corrosive environments, ceramic (silicon nitride) for high-speed applications, or polymer cages (polyamide, brass) for noise reduction and lubrication retention. Seals are often nitrile rubber or fluorocarbon.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Width10-80 mm
Speed Limit500-10,000 rpm
Inner Diameter10-200 mm
Outer Diameter30-300 mm
Precision ClassABEC 1-7 (ISO P0-P6)
Static Load Rating5-300 kN
Dynamic Load Rating10-500 kN
Operating Temperature-30°C to +120°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 15, DIN 5412, ISO 492, DIN 625

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Overheating due to inadequate lubrication
  • Contamination from dust or moisture
  • Misalignment causing premature wear
  • Overloading beyond rated capacity
  • Corrosion in humid environments
FMEA Triads
Trigger: Insufficient or improper lubrication
Failure: Increased friction, overheating, and seizure
Mitigation: Implement scheduled lubrication with correct grease type; monitor temperature and vibration.
Trigger: Seal damage allowing contaminant ingress
Failure: Abrasive wear, pitting, and reduced lifespan
Mitigation: Use sealed or shielded bearings; maintain clean operating environments; inspect seals regularly.
Trigger: Improper installation or misalignment
Failure: Uneven load distribution, noise, and early fatigue
Mitigation: Follow manufacturer installation guidelines; use alignment tools; check housing tolerances.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Radial internal clearance per ISO 5753:1 (C2 to C5 classes), dimensional tolerances per ISO 492 (Normal to Precision grades)
Test Method
Performance testing per ISO 15243 (fatigue life), vibration analysis per ISO 10816, load testing per ASTM D4172

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Roller Bearing

4 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Hafeng Bearing Co., Ltd.
Guangzhou, Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Luoyang Monton Bearing Science & Technology Co., Ltd.
Henan, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Sogears
Shandong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Zhejiang Waxing Electromechanical Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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Frequently Asked Questions

What is the main advantage of roller bearings over ball bearings in conveyor systems?

Roller bearings offer higher radial load capacity due to line contact (vs. point contact in ball bearings), making them ideal for heavy-duty conveyor applications where sustained loads are common.

How often should roller bearings be lubricated in conveyor rollers?

Lubrication intervals depend on operating conditions: typically every 3-6 months for standard environments, or more frequently in high-temperature, dusty, or wet conditions. Use grease compatible with bearing materials (e.g., lithium-based for general use).

Can roller bearings handle axial loads?

Standard cylindrical roller bearings are designed primarily for radial loads; for combined loads, tapered roller bearings or additional thrust bearings are recommended. Some designs include flanges for limited axial support.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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