INDUSTRY COMPONENT

Support Bearing / Bushing

Support bearing/bushing for agitator head assembly providing radial support and reducing friction between rotating shaft and stationary housing.

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Component Specifications

Definition
A precision mechanical component designed to support the rotating shaft within an agitator head assembly, maintaining proper alignment while minimizing friction and wear. It consists of either rolling-element bearings (ball or roller) or plain bushings (sleeve bearings) that interface between the shaft and housing, handling radial loads and ensuring smooth rotational motion in mixing applications.
Working Principle
Operates on the principle of reducing friction through either rolling contact (bearings with balls/rollers) or hydrodynamic lubrication (bushings). In agitator applications, it supports the shaft against radial forces generated by mixing action, maintaining concentricity while allowing free rotation with minimal energy loss.
Materials
Bearings: Chrome steel (AISI 52100), stainless steel (AISI 440C), ceramic hybrids. Bushings: Bronze (SAE 660), PTFE composites, oil-impregnated sintered metals, engineered polymers (PEEK, UHMW-PE).
Technical Parameters
  • Sealing Double-lip contact seals or labyrinth seals
  • Clearance C3 standard clearance (0.008-0.020 mm)
  • Lubrication Grease-packed or oil-bath systems
  • Speed Rating Up to 3000 rpm
  • Load Capacity Dynamic: 5-50 kN, Static: 8-80 kN
  • Temperature Range -40°C to +150°C
Standards
ISO 15, ISO 104, DIN 625, DIN 5412

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Support Bearing / Bushing.

agitator bearing support bushing mixing equipment bearings industrial agitator components radial support bearings shaft bushings food-grade bearings chemical-resistant bushings Support Bearing / Bushing Support Bearing / Bushing in Machinery and Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Agitator Head Assembly

The mechanical assembly that directly interfaces with and agitates chemical mixtures within a drum, typically consisting of the agitator shaft connection, impeller mounting mechanism, and sealing components.

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Engineering Analysis

Risks & Mitigation
  • Bearing seizure due to lubrication failure
  • Contamination from process media
  • Corrosion in chemical environments
  • Fatigue failure from cyclic loading
  • Misalignment causing premature wear
FMEA Triads
Trigger: Inadequate lubrication or wrong lubricant type
Failure: Increased friction, overheating, seizure
Mitigation: Implement automatic lubrication systems, use compatible food-grade or chemical-resistant greases, establish maintenance schedules
Trigger: Process media ingress past seals
Failure: Contamination, corrosion, abrasive wear
Mitigation: Upgrade to double-lip seals or labyrinth seals, install protective covers, use corrosion-resistant materials
Trigger: Shaft misalignment during installation
Failure: Uneven load distribution, vibration, premature fatigue
Mitigation: Use laser alignment tools during installation, implement regular alignment checks, install flexible couplings

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
ISO 492 Class Normal for bearings, h7/H7 fit for bushings
Test Method
Vibration analysis per ISO 10816, temperature monitoring, lubricant analysis, dimensional verification per ISO 1132

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 difference between support bearings and bushings in agitator applications?

Bearings use rolling elements (balls/rollers) for lower friction at higher speeds, while bushings provide larger contact areas for better shock absorption and are often self-lubricating. Bearings offer higher precision, bushings handle more contamination.

How often should agitator support bearings be replaced?

Typical service life is 10,000-20,000 operating hours depending on load, speed, and environment. Regular vibration analysis and temperature monitoring can predict failure before catastrophic breakdown occurs.

Can support bearings handle both radial and axial loads in agitators?

Standard support bearings primarily handle radial loads. For combined loads, angular contact bearings or tapered roller bearings are recommended. Most agitator designs separate radial and axial load handling.

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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