INDUSTRY COMPONENT

Support Block

A precision-machined block used in positioning fixtures to provide stable support and accurate height reference for workpieces during machining operations.

Component Specifications

Definition
A support block is a fundamental component in industrial positioning fixtures, designed to maintain consistent workpiece elevation and prevent deflection during machining, assembly, or inspection processes. These blocks are typically mounted to fixture bases and provide rigid, repeatable contact points that ensure dimensional accuracy across production batches.
Working Principle
The support block operates on the principle of rigid body support, creating stable datum points that counteract gravitational and machining forces. By maintaining precise height dimensions and flat contact surfaces, it ensures workpieces remain in the correct spatial orientation relative to cutting tools or measurement devices throughout the operation cycle.
Materials
Typically manufactured from hardened tool steel (A2, D2, or O1 grades), stainless steel (304 or 416), or aluminum alloy (6061-T6) with hardness ranging from 45-60 HRC for steel variants. Surface finishes of 0.8-1.6 μm Ra are standard for contact faces.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Flatness0.005 mm
MountingM6 or M8 threaded holes
Parallelism0.01 mm/m
Load Capacity500-5000 N depending on material
Standard Sizes10x10mm to 100x100mm cross-section
Height Tolerance±0.005 mm

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 6325, ASME Y14.5

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Wear degradation over time
  • Surface contamination affecting accuracy
  • Improper mounting causing instability
  • Thermal expansion in precision applications
FMEA Triads
Trigger: Accumulated wear on contact surfaces
Failure: Reduced height accuracy leading to dimensional errors in workpieces
Mitigation: Regular inspection and replacement schedules; use of wear-resistant materials or coatings
Trigger: Improper cleaning procedures
Failure: Contaminants creating false datum points
Mitigation: Implement standardized cleaning protocols; use protective covers when not in use
Trigger: Incorrect torque during mounting
Failure: Block movement or distortion under load
Mitigation: Use calibrated torque wrenches; follow manufacturer's mounting specifications

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
Geometric tolerances per ASME Y14.5, dimensional tolerances per ISO 2768-m
Test Method
Coordinate measuring machine (CMM) verification, surface plate inspection with height gauges, laser interferometry for critical applications

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 Support Block

Manufacturer profiles associated with Support Block.

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Frequently Asked Questions

What is the primary function of a support block in positioning fixtures?

The primary function is to provide stable, repeatable height reference points that prevent workpiece deflection and maintain dimensional accuracy during machining or assembly operations.

How do I select the appropriate material for a support block?

Material selection depends on application requirements: tool steel for high-wear applications, stainless steel for corrosion resistance, and aluminum for lightweight applications where frequent adjustment is needed.

Can support blocks be customized for specific applications?

Yes, support blocks are often custom-machined with specific heights, mounting patterns, surface features, or special materials to meet unique fixture 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.

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