Support Bearing: Bore Diameter 20-100 mm, Width 14-37 mm

Component Specifications

Definition

A precision mechanical component designed to support rotating shafts in agitation assemblies, typically consisting of inner and outer rings with rolling elements (balls or rollers) and a cage, housed within a bearing housing. It provides both radial support against perpendicular loads and axial support against thrust loads while minimizing friction during shaft rotation in mixing, stirring, or blending applications.

Working Principle

Operates on rolling contact mechanics where rolling elements (balls or rollers) rotate between inner and outer raceways, converting sliding friction into rolling friction. This reduces energy loss and wear while supporting shaft loads. In agitation assemblies, it maintains shaft alignment and position despite variable loads from mixing operations.

Materials

Typically made from chrome steel (AISI 52100/SUJ2) for rings and rolling elements, with cages of steel, brass, or polymer. Special applications may use stainless steel (AISI 440C), ceramic (silicon nitride), or coated materials for corrosion/heat resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	14-37 mm
Lubrication	Grease-packed or oil-bath
Speed Limit	8000-15000 rpm
Bore Diameter	20-100 mm
Outside Diameter	47-180 mm
Static Load Rating	8-65 kN
Dynamic Load Rating	15-120 kN
Operating Temperature	-30°C to +120°C

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, ISO 355, DIN 625-1, DIN 5412

Parent Products

This component is used in the following industrial products

Agitation Assembly

Mechanical assembly for controlled mixing and agitation in a chemical crystallization unit to promote uniform crystal formation.

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Elevation Mechanism

Mechanical system that controls the vertical angle adjustment of a firefighting monitor nozzle.

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Engineering Analysis

Risks & Mitigation

Bearing seizure due to lubrication failure
Fatigue spalling from overload conditions
Corrosion in chemical environments
Contamination ingress leading to premature wear
Misalignment causing uneven load distribution

FMEA Triads

Trigger: Inadequate lubrication or wrong lubricant type
Failure: Increased friction, overheating, and eventual bearing seizure
Mitigation: Implement scheduled lubrication maintenance, use correct lubricant per manufacturer specifications, install automatic lubrication systems

Trigger: Shaft misalignment exceeding 0.05 mm/mm
Failure: Uneven load distribution, premature fatigue, and bearing cage damage
Mitigation: Precision alignment during installation, use laser alignment tools, implement regular alignment checks

Trigger: Contaminant ingress (dust, moisture, process materials)
Failure: Abrasive wear, pitting, and reduced bearing life
Mitigation: Install effective seals (contact or labyrinth type), maintain clean operating environment, use bearing isolators

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

ISO 492 Normal class (P0) or higher precision classes (P6, P5) for critical applications

Test Method

Vibration analysis per ISO 10816, temperature monitoring, lubricant analysis, dimensional verification per ISO 1132

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

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Manufacturers of Support Bearing

Manufacturer profiles associated with Support Bearing.

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Frequently Asked Questions

What is the typical service life of a support bearing in agitation assemblies?

Under proper conditions (correct loading, lubrication, alignment), support bearings typically last 20,000-50,000 operating hours. Life varies based on load intensity, speed, contamination levels, and maintenance practices.

How do I identify when a support bearing needs replacement?

Common indicators include abnormal noise (grinding, rumbling), excessive vibration, increased operating temperature (>70°C above ambient), visible wear or corrosion, and increased power consumption. Regular vibration analysis and temperature monitoring help detect early failure signs.

Can support bearings handle both radial and axial loads in agitation applications?

Yes, most support bearings for agitation assemblies are designed as deep groove ball bearings or angular contact bearings that handle combined radial and axial loads. The specific design depends on the load ratio and direction in the application.

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.

Support Bearing