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Pivot Bearing Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

A specialized pivot bearing designed for dancer arm assemblies in tension sensor systems, providing smooth rotational movement with minimal friction while maintaining precise angular positioning under variable loads. This component enables accurate tension measurement and control by allowing the dancer arm to pivot freely in response to material tension changes.

Working Principle

Utilizes rolling elements (balls or rollers) between inner and outer races to reduce friction during rotational movement. The bearing supports radial and axial loads while maintaining precise alignment, allowing the dancer arm to pivot smoothly in response to tension variations in the material being processed.

Materials

Bearing steel (AISI 52100/SUJ2), stainless steel (AISI 440C) for corrosive environments, ceramic balls (Si3N4) for high-speed applications, PTFE or nylon retainers

Technical Parameters

Width 10-30 mm
Clearance C3 to C5
Speed Rating Up to 10,000 rpm
Load Capacity Dynamic: 5-50 kN, Static: 10-100 kN
Inner Diameter 10-50 mm
Outer Diameter 30-90 mm
Precision Grade ABEC 3 to ABEC 7
Operating Temperature -30°C to +120°C

Standards

ISO 15, ISO 355, DIN 625-1, DIN 628-1

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pivot Bearing.

Parent Products

This component is used in the following industrial products

Dancer Arm / Tension Sensor

A mechanical-electrical component that measures and regulates wire tension in continuous processing systems.

View Product Details

Dancer Arm or Tension Sensor

A mechanical-electrical component that measures and regulates material tension in decoiling/uncoiling systems.

View Product Details

Engineering Analysis

Risks & Mitigation

Bearing seizure due to inadequate lubrication
Premature wear from misalignment
Contamination ingress leading to failure
Fatigue failure under cyclic loading

FMEA Triads

Trigger: Inadequate lubrication or contamination
Failure: Increased friction, overheating, and eventual bearing seizure
Mitigation: Implement regular lubrication schedules, use proper seals, and maintain clean operating environments

Trigger: Misalignment during installation
Failure: Uneven load distribution leading to premature wear and reduced bearing life
Mitigation: Use precision alignment tools during installation and verify alignment periodically

Trigger: Excessive load or shock loading
Failure: Brinelling or fatigue failure of bearing components
Mitigation: Proper sizing for application loads, use of shock-absorbing mounts, and load monitoring systems

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Radial runout: ≤0.005 mm, Axial runout: ≤0.003 mm, Bore tolerance: h6, Outer diameter tolerance: g6

Test Method

ISO 15242-1 for vibration testing, ISO 281 for load rating verification, dimensional inspection per ISO 1132-2

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 primary function of a pivot bearing in a dancer arm system?

The pivot bearing enables smooth rotational movement of the dancer arm while maintaining precise positioning, allowing accurate tension measurement and control in material processing systems.

How often should pivot bearings be maintained in industrial applications?

Maintenance intervals depend on operating conditions, but typically range from 3-12 months for lubrication and 1-3 years for replacement, with more frequent checks in high-load or high-speed applications.

What materials are best for pivot bearings in corrosive environments?

Stainless steel (AISI 440C) bearings with appropriate seals or ceramic bearings provide excellent corrosion resistance in harsh environments.

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.

Pivot Bearing