INDUSTRY COMPONENT

Shaft Bearing

Precision component supporting rotating shafts in vibration motors to reduce friction and maintain alignment.

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Component Specifications

Definition
A shaft bearing is a critical mechanical component designed to support and guide rotating shafts while minimizing friction and wear. In vibration motor cores, it ensures precise radial and axial positioning of the shaft, enabling efficient transmission of oscillatory forces. These bearings must withstand high-frequency cyclic loads, thermal variations, and potential contamination while maintaining dimensional stability and low noise operation.
Working Principle
Operates on rolling or sliding contact principles to reduce friction between rotating shaft and stationary housing. In vibration applications, bearings absorb radial and axial loads from eccentric masses while maintaining shaft concentricity, converting rotational motion into controlled vibration through constrained movement.
Materials
Typically chrome steel (AISI 52100/SUJ2) or stainless steel (AISI 440C) for corrosion resistance; ceramic hybrid options available for extreme conditions; cages made of brass, steel, or polymer; seals from nitrile rubber or fluoroelastomer.
Technical Parameters
  • Width 4-16 mm
  • Clearance C3/C4 for thermal expansion
  • Lubrication Grease-packed (Lithium complex/Polyurea)
  • Speed Limit 15,000-30,000 rpm
  • Bore Diameter 3-30 mm
  • Outer Diameter 10-62 mm
  • Precision Grade ABEC 3/5/7
  • Static Load Rating 0.8-15 kN
  • Dynamic Load Rating 1.5-25 kN
Standards
ISO 15, DIN 625-1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Shaft Bearing.

vibration motor bearing shaft support bearing rotary bearing industrial bearing motor core component friction reduction bearing specifications bearing maintenance Shaft Bearing Shaft Bearing in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Vibration Motor Core

Miniature motor providing haptic feedback in adult wellness devices

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Engineering Analysis

Risks & Mitigation
  • Overheating due to inadequate lubrication
  • Fatigue failure from cyclic loading
  • Contamination ingress degrading performance
  • Misalignment causing premature wear
  • Corrosion in humid environments
FMEA Triads
Trigger: Insufficient lubrication interval
Failure: Increased friction leading to overheating and seizure
Mitigation: Implement automated lubrication systems and condition monitoring
Trigger: Shaft misalignment exceeding 0.05 mm
Failure: Uneven load distribution causing premature fatigue
Mitigation: Use laser alignment tools during installation and regular checks
Trigger: Contaminant ingress through damaged seals
Failure: Abrasive wear reducing bearing life by 60-80%
Mitigation: Install multi-labyrinth seals and maintain clean operating environment

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Radial runout < 0.01 mm, axial play 0.02-0.08 mm depending on application
Test Method
ISO 15242 vibration testing, ASTM D4170 wear testing, thermal cycling per IEC 60034-14

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 lubrication is recommended for vibration motor shaft bearings?

High-temperature lithium complex or polyurea grease with EP additives, replenished every 2,000-5,000 operating hours depending on load and environment.

How do shaft bearings affect vibration motor efficiency?

Proper bearing selection reduces friction losses by 15-30%, improves heat dissipation, and prevents premature wear, directly impacting motor lifespan and energy consumption.

What are common failure signs in vibration motor bearings?

Increased noise (grinding/clicking), elevated temperature (>70°C above ambient), irregular vibration patterns, and visible wear particles in lubricant.

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.

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