Pivot Pin/Bearing: Load Capacity 5-50 kN, Pin Diameter 10-50 mm

Component Specifications

Definition

A pivot pin/bearing is a critical mechanical component in blade assemblies that facilitates controlled rotational motion around a fixed axis. It consists of a cylindrical pin that rotates within a bearing housing, providing low-friction movement while maintaining structural integrity under operational loads. This component ensures precise angular positioning, reduces wear through proper lubrication interfaces, and transfers mechanical forces from the blade to the machine frame.

Working Principle

The pivot pin rotates within its bearing housing to allow angular displacement of attached blades. Friction reduction is achieved through bearing surfaces (plain, roller, or ball bearings), while the pin's geometry maintains alignment and distributes radial/axial loads. Lubrication systems minimize wear, and tolerance controls ensure smooth operation without excessive play.

Materials

Pins: Case-hardened steel (AISI 4140/4340), stainless steel (316/440C), or titanium alloys. Bearings: Bronze bushings, polymer composites (PTFE/PEEK), or ceramic-coated steel. Lubrication: Grease (NLGI Grade 2) or oil systems.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Pin Diameter	10-50 mm
Load Capacity	5-50 kN
Rotational Speed	Up to 500 RPM
Surface Hardness	58-62 HRC
Bearing Clearance	0.02-0.05 mm
Temperature Range	-40°C to 150°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 286, DIN 7190

Parent Products

This component is used in the following industrial products

Blade Assembly

A set of blades arranged in a frame that controls airflow, light, or visibility in dampers and louvers.

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Articulated Arm Sections

Segmented components that form the flexible arm structure of extraction hoods/arms, enabling adjustable positioning for fume capture.

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Engineering Analysis

Risks & Mitigation

Wear-induced misalignment
Lubrication failure
Corrosion in humid environments
Overload causing deformation

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction and overheating
Mitigation: Implement automated lubrication systems with pressure sensors

Trigger: Material fatigue
Failure: Pin fracture under cyclic loading
Mitigation: Use fatigue-resistant alloys and conduct regular ultrasonic testing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

ISO IT7 grade for pins, IT8 for bearings

Test Method

DIN 51524 for lubrication, ISO 15242 for rotational accuracy

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

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Supplier transparency

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Manufacturers of Pivot Pin/Bearing

Manufacturer profiles associated with Pivot Pin/Bearing.

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Frequently Asked Questions

What maintenance is required for pivot pins/bearings?

Regular lubrication every 500 operating hours, inspection for wear every 6 months, and replacement when clearance exceeds 0.1 mm.

How do I select the right pivot bearing material?

Choose based on load (steel for high loads), corrosion resistance (stainless steel), or temperature (polymers for extreme conditions).

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 Pin/Bearing