INDUSTRY COMPONENT

Rotation Bearing Surface

Precision-machined surface on drum body for bearing mounting and rotation support.

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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.

bearing surface drum rotation surface machined bearing seat industrial drum components precision mounting surface bearing interface Rotation Bearing Surface Rotation Bearing Surface in Machinery and Equipment Manufacturing

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.

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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

Buyer Feedback

★★★★☆ 4.5 / 5.0 (35 reviews)

"Reliable performance in harsh Machinery and Equipment Manufacturing environments. No issues with the Rotation Bearing Surface so far."

"Testing the Rotation Bearing Surface now; the technical reliability results are within 1% of the laboratory datasheet."

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

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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.

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Rotating Shaft Rotation Shaft