Swivel Fork: Load Capacity 25-150 kg per caster

Component Specifications

Definition

A swivel fork is the structural component of a furniture caster assembly that connects the wheel to the mounting plate or stem. It contains a swivel bearing mechanism that allows the wheel to rotate freely around a vertical axis while supporting the load. This component is essential for providing omnidirectional mobility to furniture pieces, enabling smooth movement in any direction without requiring the entire piece to be turned.

Working Principle

The swivel fork operates on a bearing-based rotation principle. It contains a raceway with ball bearings between the fork's upper mounting section and lower wheel axle section. When lateral force is applied to the furniture, the bearings allow the fork to rotate around the vertical axis while maintaining load capacity. This separates the wheel's rolling motion (horizontal axis) from the caster's directional change (vertical axis), enabling true omnidirectional movement.

Materials

Typically made from stamped or forged steel (SAE 1010-1020), zinc alloy (Zamak), or engineered plastics (polyamide, polypropylene). High-end versions may use stainless steel (304/316) or aluminum alloys for corrosion resistance. Bearing components are usually carbon steel or stainless steel balls with brass or polymer retainers.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Fork Width	25-45 mm
Bearing Type	Ball bearing, roller bearing, or plain bearing
Load Capacity	25-150 kg per caster
Rotation Angle	360° continuous
Mounting Height	40-80 mm
Rotation Torque	0.5-3.0 Nm
Wheel Bore Size	8-12 mm standard

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 9001, DIN 15171, ANSI/BIFMA X5.1

Parent Products

This component is used in the following industrial products

Furniture Caster

A furniture caster is a wheeled component mounted to the base of furniture items to enable easy movement and repositioning.

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Engineering Analysis

Risks & Mitigation

Bearing seizure due to contamination
Fork deformation under overload
Fatigue failure at stress points
Corrosion in humid environments
Thread stripping in mounting holes

FMEA Triads

Trigger: Contamination entering bearing raceway
Failure: Increased rotation torque leading to seizure
Mitigation: Use sealed bearings, implement protective covers, regular cleaning protocols

Trigger: Exceeding rated load capacity
Failure: Fork deformation or fracture
Mitigation: Clear load rating labeling, design with safety factor of 2-3x, use higher grade materials

Trigger: Corrosive environment exposure
Failure: Material degradation and bearing failure
Mitigation: Select corrosion-resistant materials (stainless steel, zinc plating), apply protective coatings

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.2 mm on critical dimensions, bearing raceway roundness within 0.05 mm

Test Method

ASTM F1487 for load testing, rotation torque measured per ANSI/BIFMA standards, salt spray testing per ASTM B117 for corrosion resistance

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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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Swivel Fork

Manufacturer profiles associated with Swivel Fork.

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Related Components

Edge Banding

Edge banding is a protective and decorative strip applied to exposed edges of furniture panels to conceal substrate materials and enhance durability.

Frequently Asked Questions

What is the difference between a swivel fork and a rigid fork in casters?

A swivel fork allows 360-degree rotation for omnidirectional movement, while a rigid fork is fixed and only allows forward/backward movement. Swivel forks contain bearing mechanisms that rigid forks lack.

How do I maintain a swivel fork mechanism?

Regular cleaning to remove debris, periodic lubrication of bearing surfaces (if not sealed), and inspection for wear in the raceway or bearing components. Sealed bearings typically require no maintenance.

Can swivel forks be replaced separately from the entire caster?

Yes, most quality casters allow swivel fork replacement. However, compatibility with the wheel axle and mounting system must be verified. Some budget casters have integrated designs requiring full unit replacement.

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.

Swivel Fork