INDUSTRY COMPONENT

Mounting Hub/Bore

Mounting hub/bore is a precision component in cam mechanisms that provides secure attachment and rotational interface between camshafts and driven elements.

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Component Specifications

Definition
A mounting hub/bore is a cylindrical mechanical interface component designed to connect rotating cam elements to shafts or other driven components in cam mechanisms. It features precise internal bore dimensions for shaft fitting and external hub geometry for cam attachment, ensuring accurate torque transmission and rotational alignment while maintaining structural integrity under cyclic loading conditions.
Working Principle
The mounting hub/bore operates on mechanical interference and friction principles, where the bore creates a press-fit or keyed connection with the shaft, while the hub provides mounting surfaces for cam elements. This dual-interface design ensures synchronized rotation between cam and shaft, transmitting motion and force while maintaining precise angular positioning through geometric constraints and surface contact mechanics.
Materials
Typically manufactured from alloy steels (AISI 4140, 4340), stainless steels (304, 316), or aluminum alloys (6061-T6) with hardness ranging from 28-45 HRC for steel components. Surface treatments may include nitriding, carburizing, or chrome plating for wear resistance.
Technical Parameters
  • Length 15-120 mm
  • Hub Diameter 20-150 mm
  • Bore Diameter 10-100 mm
  • Concentricity 0.01-0.05 mm
  • Surface Finish Ra 0.8-3.2 μm
  • Tolerance Class IT6-IT7
  • Runout Tolerance 0.02-0.1 mm
Standards
ISO 286, DIN 7154, ISO 1101, DIN 7184

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Mounting Hub/Bore.

cam mechanism mounting hub precision bore component mechanical power transmission industrial camshaft interface rotating component attachment Mounting Hub/Bore Mounting Hub/Bore in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Cam Mechanism

A mechanical component that converts rotational motion into linear motion or vice versa within a locking system.

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Engineering Analysis

Risks & Mitigation
  • Concentricity deviation causing vibration
  • Fatigue failure from cyclic loading
  • Wear at bore-shaft interface
  • Improper fit leading to slippage
  • Corrosion in harsh environments
FMEA Triads
Trigger: Inadequate interference fit or improper installation
Failure: Slippage between hub and shaft leading to timing errors
Mitigation: Implement precise tolerance control, use proper installation tools, and verify fit with go/no-go gauges
Trigger: Material fatigue from cyclic loading
Failure: Crack propagation leading to catastrophic failure
Mitigation: Use fatigue-resistant materials, apply surface treatments, and implement regular inspection protocols
Trigger: Misalignment during assembly
Failure: Excessive vibration and premature bearing wear
Mitigation: Use alignment tools during installation, verify runout tolerances, and implement precision assembly procedures

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Geometric tolerances per ISO 1101, dimensional tolerances per ISO 286 IT6-IT7, surface finish Ra 0.8-3.2 μm
Test Method
Coordinate measuring machine (CMM) verification, surface roughness testing, hardness testing, runout measurement with dial indicators, ultrasonic testing for material defects

Buyer Feedback

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"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Mounting Hub/Bore meets all ISO standards."

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Mounting Hub/Bore arrived with full certification."

"Great transparency on the Mounting Hub/Bore components. Essential for our Machinery and Equipment Manufacturing supply chain."

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Frequently Asked Questions

What is the primary function of a mounting hub/bore in cam mechanisms?

The mounting hub/bore serves as the critical interface that securely connects cam elements to rotating shafts, ensuring precise torque transmission, accurate angular positioning, and synchronized motion between cam and driven components while maintaining structural integrity under operational loads.

How are mounting hubs/bores typically secured to shafts?

Mounting hubs/bores are secured using interference fits (press fits), keyways with keys, splined connections, or clamping mechanisms. The selection depends on torque requirements, disassembly frequency, and precision needs, with interference fits providing the highest concentricity for precision applications.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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