Feed Dog Bar/Carrier: Load Capacity 50-200N, Width 20-50mm

Component Specifications

Definition

The feed dog bar/carrier is a critical component in industrial material feed systems, typically found in sewing machines, packaging equipment, and automated assembly lines. It consists of a rigid bar or carrier structure that supports and drives feed dogs (toothed elements) to grip and advance materials with controlled precision. This component ensures consistent material positioning, tension control, and synchronization with other machine operations.

Working Principle

The feed dog bar/carrier operates on a reciprocating or rotary motion principle, transferring mechanical energy from the machine's drive system to the feed dogs. As the bar/carrier moves, it elevates the feed dogs to engage material surfaces, then retracts them during return strokes. This creates an intermittent advancement pattern that allows precise control over material feed rates and positioning.

Materials

Typically manufactured from hardened steel (AISI 4140 or similar), stainless steel (304 or 316 grade for corrosion resistance), or aluminum alloys (6061-T6 for lightweight applications). Surface treatments may include nitriding, chrome plating, or PTFE coatings for wear resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Width	20-50mm
Height	15-40mm
Length	150-500mm (customizable)
Weight	0.5-3.0kg
Load Capacity	50-200N
Surface Hardness	45-60 HRC
Operating Temperature	-10°C to 80°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

DIN 7182, ISO 2768

Parent Products

This component is used in the following industrial products

Material Feed Mechanism

A mechanical system that precisely advances leather material through an industrial stitching machine.

View Product Details

Engineering Analysis

Risks & Mitigation

Material slippage due to worn teeth
Misalignment causing uneven feed
Fatigue failure from cyclic loading
Corrosion in humid environments

FMEA Triads

Trigger: Insufficient lubrication
Failure: Increased friction and premature wear
Mitigation: Implement scheduled lubrication and use wear-resistant coatings

Trigger: Overloading beyond design capacity
Failure: Structural deformation or fracture
Mitigation: Install load sensors and implement overload protection systems

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1mm for critical dimensions, ±0.05mm for engagement surfaces

Test Method

Dimensional verification with CMM, load testing with hydraulic actuators, wear testing with material samples

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 Feed Dog Bar/Carrier

Manufacturer profiles associated with Feed Dog Bar/Carrier.

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Frequently Asked Questions

What maintenance does a feed dog bar/carrier require?

Regular lubrication of moving parts, inspection for wear on engagement surfaces, and alignment checks to ensure proper material feed.

Can feed dog bars be customized for different materials?

Yes, tooth patterns, materials, and surface treatments can be customized based on material thickness, texture, and feed requirements.

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.

Feed Dog Bar/Carrier