INDUSTRY COMPONENT

Gear Ring

A precision gear ring component for rotational bearing assemblies that transmits torque and maintains alignment in mechanical systems.

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Component Specifications

Definition
A gear ring is a circular gear component with internal or external teeth that meshes with other gears or pinions within a rotational bearing assembly. It serves as a critical interface for torque transmission, speed reduction/increase, and precise rotational motion control in mechanical systems. In bearing assemblies, it often functions as the outer race with integrated gear teeth or as a separate component mounted to the bearing race.
Working Principle
The gear ring operates on the principle of gear meshing, where its teeth engage with mating gears to transfer rotational motion and torque. In rotational bearing assemblies, it converts rotational input into controlled output while maintaining alignment through the bearing structure. The gear teeth profile (typically involute) ensures smooth power transmission with minimal backlash and efficient load distribution across the bearing surfaces.
Materials
Case-hardened alloy steel (e.g., AISI 8620, 4140), through-hardened steels (e.g., AISI 1045), stainless steel (e.g., 440C) for corrosion resistance, or engineered polymers (e.g., POM, nylon) for lightweight applications. Surface treatments include carburizing, nitriding, or induction hardening to 58-62 HRC on tooth surfaces.
Technical Parameters
  • Module 1.0-5.0 mm
  • Backlash 0.05-0.15 mm
  • Face Width 20-100 mm
  • Core Hardness 30-40 HRC
  • Tooth Profile Involute
  • Accuracy Grade ISO 1328 Class 5-7
  • Pitch Diameter 100-1000 mm
  • Pressure Angle 20°
  • Number of Teeth 50-200
  • Surface Hardness 58-62 HRC
Standards
ISO 1328, DIN 3960, AGMA 2000, JIS B 1702

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Gear Ring.

gear ring bearing gear rotational bearing assembly internal gear external gear power transmission component gear specifications industrial gears Gear Ring in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Rotational Bearing Assembly

A precision mechanical assembly that enables smooth, controlled rotation of the LINAC gantry around the patient axis.

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Slewing Ring

A large-diameter bearing that enables rotational movement between the crane's upper structure (slewing platform) and the fixed base or undercarriage.

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Slewing Bearing & Drive

A mechanical assembly that enables rotational movement and provides torque for the slewing motion of a ship loader's boom or arm.

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Engineering Analysis

Risks & Mitigation
  • Tooth fatigue failure
  • Misalignment wear
  • Inadequate lubrication damage
  • Backlash accumulation
  • Thermal expansion mismatch
FMEA Triads
Trigger: Insufficient surface hardness or improper heat treatment
Failure: Premature tooth pitting and surface fatigue
Mitigation: Implement strict hardness testing (58-62 HRC surface), validate heat treatment processes, and use case-hardened alloy steels
Trigger: Assembly misalignment exceeding design tolerances
Failure: Uneven tooth loading and accelerated wear patterns
Mitigation: Use precision alignment tools during installation, implement laser alignment verification, and design with self-aligning features
Trigger: Inadequate or contaminated lubrication
Failure: Scoring, galling, and excessive wear on tooth surfaces
Mitigation: Establish preventive maintenance schedules, use filtration systems, and select appropriate lubricant viscosity for operating conditions

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Tooth profile tolerance: ±0.02 mm, Pitch error: ≤0.03 mm, Runout: ≤0.05 mm TIR
Test Method
Coordinate measuring machine (CMM) verification, gear rolling test for transmission error, hardness testing per ISO 6508, ultrasonic inspection for material defects

Buyer Feedback

★★★★☆ 4.5 / 5.0 (36 reviews)

"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Gear Ring meets all ISO standards."

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Gear Ring arrived with full certification."

"Great transparency on the Gear Ring components. Essential for our Machinery and Equipment Manufacturing supply chain."

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Frequently Asked Questions

What is the primary function of a gear ring in rotational bearing assemblies?

The gear ring transmits torque between rotating components while maintaining precise alignment through the bearing structure, enabling controlled speed variation and power transmission within mechanical systems.

How do I select the appropriate material for a gear ring application?

Material selection depends on load capacity, operating environment, and required precision. Alloy steels are standard for high-load applications, stainless steels for corrosive environments, and polymers for lightweight, low-noise operations.

What are common failure modes for gear rings in bearing assemblies?

Common failures include tooth pitting from surface fatigue, wear from inadequate lubrication, tooth breakage from overload, and misalignment-induced uneven wear patterns.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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