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Rotation Bearing Surface Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

The rotation bearing surface is a critical machined interface on industrial drum bodies where radial or axial bearings are mounted to enable smooth, low-friction rotation. This surface must maintain precise dimensional tolerances, surface finish quality, and geometric accuracy to ensure proper bearing fit, alignment, and load distribution during operation.

Working Principle

Provides a stable, accurately positioned mounting surface for bearings that support rotational motion by minimizing friction through rolling elements (balls or rollers) while maintaining structural integrity under radial and axial loads.

Materials

Typically manufactured from medium-carbon steel (e.g., AISI 1045, 4140) or alloy steel, often heat-treated (hardened and tempered) to 45-55 HRC for wear resistance. Surface may be ground or honed to Ra 0.4-0.8 μm finish.

Technical Parameters

Hardness 45-55 HRC
Roundness ≤ 0.01 mm
Cylindricity ≤ 0.015 mm
Surface Roughness Ra 0.4-0.8 μm
Diameter Tolerance H7/h6

Standards

ISO 286-2, DIN 7154, ISO 1101

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rotation Bearing Surface.

Parent Products

This component is used in the following industrial products

Drum Body

The main structural component of a magazine carousel or drum that houses and rotates cartridges, rounds, or other ammunition components.

View Product Details

Engineering Analysis

Risks & Mitigation

Surface damage from improper handling
Geometric inaccuracies causing bearing misalignment
Corrosion in humid environments
Fatigue cracking under cyclic loads

FMEA Triads

Trigger: Improper machining tolerances
Failure: Bearing seizure or excessive clearance leading to vibration
Mitigation: Implement statistical process control (SPC) for machining operations and 100% dimensional verification

Trigger: Surface contamination during assembly
Failure: Abrasive wear and reduced bearing life
Mitigation: Clean room assembly procedures and protective coatings until bearing installation

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Geometric tolerances per ISO 1101, dimensional tolerances per ISO 286-2

Test Method

Coordinate measuring machine (CMM) verification, surface roughness testing per ISO 4287, hardness testing per ISO 6508

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a rotation bearing surface on a drum body?

To provide a precise mounting location for bearings that support rotational movement while maintaining alignment and load distribution under operational conditions.

What surface finish is required for proper bearing performance?

Typically Ra 0.4-0.8 μm to ensure proper bearing contact and prevent premature wear while maintaining adequate lubrication retention.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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.

Rotation Bearing Surface