INDUSTRY COMPONENT

Shaft Bearing

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

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
ParameterTypical rangeNotes & selection driver
Width4-16 mm
ClearanceC3/C4 for thermal expansion
LubricationGrease-packed (Lithium complex/Polyurea)
Speed Limit15,000-30,000 rpm
Bore Diameter3-30 mm
Outer Diameter10-62 mm
Precision GradeABEC 3/5/7
Static Load Rating0.8-15 kN
Dynamic Load Rating1.5-25 kN

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 15, DIN 625-1

Parent Products

This component is used in the following industrial products

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

Typical Suppliers & Equivalents

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

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Shaft Bearing

3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

DongGuan Precision Converting Industrial Co. Ltd.
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Jiangyin Ida Equipment Co., Ltd.
Jiangsu, CN
Listed on the company's own website · profile compiled by CNFX from public sources
Zhejiang Waxing Electromechanical Co., Ltd.
Zhejiang, CN
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Upper Tool (Punch)
Upper Tool (Punch) is the active forming component in metal plate bending machines that applies precise downward force to create bends in sheet metal.
Main Frame
The main frame is the primary structural component of a hydraulic press, providing rigidity and stability to withstand high compressive forces during metal forming operations.
Seal Groove
Precision-machined groove in aluminum bearing housings designed to accommodate sealing elements for fluid containment and contamination prevention.
Core Vent
Core vent is a specialized component in casting cores that facilitates gas escape during metal pouring to prevent defects.

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.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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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