Pivot Bushing: Load Capacity Up to 5000 N radial

Component Specifications

Definition

A pivot bushing is a cylindrical mechanical component designed to facilitate controlled rotational movement between two connected parts, typically in actuator and lever systems. It serves as an interface between a rotating shaft and a stationary housing, providing precise alignment, reducing friction through bearing surfaces, and absorbing radial loads. This component ensures smooth articulation while maintaining structural integrity under operational stresses.

Working Principle

The pivot bushing operates on the principle of providing a low-friction rotational interface. It allows a shaft or pin to rotate within a stationary housing by distributing loads across its bearing surface, minimizing wear through material selection and lubrication. The bushing maintains precise clearance between moving parts, preventing misalignment and ensuring consistent motion transfer in mechanical linkages.

Materials

Typically manufactured from bronze alloys (C93200/C93700), sintered metals with oil impregnation, polymer composites (PTFE, nylon), or hardened steel with surface treatments. Material selection depends on load capacity, speed, lubrication requirements, and environmental conditions.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length	10-80 mm
Clearance	0.02-0.1 mm
Load Capacity	Up to 5000 N radial
Inner Diameter	5-50 mm
Outer Diameter	8-60 mm
Surface Finish	Ra 0.4-1.6 μm
Temperature Range	-40°C to 200°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 3547, DIN 1494, ISO 4379

Parent Products

This component is used in the following industrial products

Actuator/Lever

Mechanical component that transmits motion or force to control the position of an air register or damper blade.

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Engineering Analysis

Risks & Mitigation

Wear and tear leading to increased clearance
Misalignment causing uneven load distribution
Lubrication failure resulting in seizure
Material fatigue under cyclic loading

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction leading to overheating and seizure
Mitigation: Implement regular lubrication schedules and use self-lubricating materials

Trigger: Excessive radial load
Failure: Deformation and premature wear
Mitigation: Proper sizing calculations and installation of load monitoring systems

Trigger: Contamination ingress
Failure: Abrasive wear and surface damage
Mitigation: Install protective seals and implement regular cleaning protocols

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

ISO 286-2:2010 for dimensional tolerances, typically IT7-IT9 grade

Test Method

ISO 4378-1 for friction and wear testing, ASTM D3702 for wear rate measurement

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 Pivot Bushing

Manufacturer profiles associated with Pivot Bushing.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a pivot bushing?

The primary function is to provide a smooth rotational interface between moving parts while maintaining alignment, reducing friction, and absorbing radial loads in mechanical systems.

How often should pivot bushings be replaced?

Replacement intervals depend on operating conditions, but typically range from 6-24 months. Signs of wear include increased play, noise, or visible deformation.

Can pivot bushings be used in high-temperature applications?

Yes, when manufactured from appropriate materials like bronze alloys or specialized polymers that can withstand temperatures up to 200°C.

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.

Pivot Bushing