INDUSTRY COMPONENT

Gear Wheel

A precision mechanical component with teeth that mesh with another toothed part to transmit torque and motion in machinery.

Component Specifications

Definition
A gear wheel is a rotating machine element with cut teeth, or cogs, which mesh with another toothed component to change the speed, torque, and direction of a power source. It is a fundamental part of gear sets used in various mechanical systems for power transmission, speed reduction or increase, and motion control. Gears are engineered to precise specifications to ensure efficient energy transfer with minimal losses.
Working Principle
Gears operate on the principle of mechanical advantage through tooth engagement. When two gears mesh, the rotational motion and torque from the driving gear (pinion) are transferred to the driven gear. The gear ratio, determined by the number of teeth on each gear, defines the speed and torque conversion. Proper meshing requires precise tooth profiles (like involute curves) to ensure smooth, continuous motion and load distribution.
Materials
Typically made from alloy steels (e.g., AISI 4140, 4340) for strength and durability, often heat-treated (carburized, hardened, tempered). Other materials include cast iron, stainless steel, brass, bronze, or polymers (e.g., nylon) for specific applications like corrosion resistance or noise reduction.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Module2-10 mm
Hardness58-62 HRC (for hardened steel)
Face Width10-100 mm
Accuracy GradeISO 1328 Class 5-8
Pitch Diameter50-500 mm
Pressure Angle20 degrees
Number Of TeethVaries by design

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 1328, DIN 3960, AGMA 2000, JIS B 1702

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Tooth breakage under overload
  • Wear and pitting from friction
  • Misalignment causing noise and inefficiency
  • Lubrication failure leading to overheating
FMEA Triads
Trigger: Excessive torque or shock loads
Failure: Tooth fracture or bending
Mitigation: Design with adequate safety factors, use impact-resistant materials, and implement torque limiters.
Trigger: Insufficient or contaminated lubrication
Failure: Scoring, wear, or overheating
Mitigation: Follow lubrication schedules, use proper lubricants, and seal gear housings against contaminants.
Trigger: Misalignment during installation
Failure: Uneven tooth contact and premature wear
Mitigation: Use precision alignment tools, follow installation procedures, and conduct regular inspections.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Tooth profile tolerance per ISO 1328 (e.g., ±0.02 mm for pitch), backlash controlled to 0.1-0.3 mm depending on application
Test Method
Dimensional checks with gear measuring machines, hardness testing (Rockwell), noise and vibration analysis, and load testing under operational conditions

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 Gear Wheel

3 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.

Changzhou Baoxin Metallurgy Equipment Manufacturing Co.,Ltd.
Jiangsu, CN
Also makes: Rotary Table, Rope Sheaves, Cone Crusher and 4 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “What is a Gear Wheel?”
View source page ↗ baoxincz.com · checked 2026-09-16
Shanghai Belon Machinery Co., ltd.
Shanghai, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Bevel Gear Wheels For Gearbox”
View source page ↗ belonmachinery.com · checked 2026-08-28
SST Machinery Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Gear Wheel”
View source page ↗ sstmachinery.com · checked 2026-09-17

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 purpose of a gear wheel in industrial machinery?

A gear wheel transmits torque and motion between shafts, changes speed or direction, and provides mechanical advantage in systems like conveyors, engines, and robotics.

How do I select the right gear material?

Choose based on load, speed, environment, and cost. Use alloy steel for high strength, stainless for corrosion resistance, or polymers for lightweight, low-noise applications.

What are common failure modes for gear wheels?

Common failures include tooth wear, pitting, bending fatigue, and scoring due to improper lubrication, overload, misalignment, or material defects.

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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