Quality Assurance · ISO 9001 · ITAR

QUALITY &
INSPECTION

INSCO is ISO 9001 certified and ITAR registered. Every gear we ship gets inspected for dimensions, gear geometry, and hardness against the applicable industry standard (AGMA, DIN, or ISO) and your tolerances, and we can provide full conformance documentation and traceability with every shipment.

INSPECTION IS NOT AN AFTERTHOUGHT

We inspect throughout the build, not just at the end. Gears are checked after cutting, after grinding, after secondary operations, and again before they ship. Catching a problem early protects the lead time and the delivery date.

Precision ground gears get 100% analytical inspection as standard. We measure involute profile, lead, pitch, runout, tooth thickness, and surface finish on every gear. Our four M&M analytical gear analyzers compare actual tooth geometry to the computer model to within one micron, confirm both AGMA and European DIN quality levels, and store the results electronically for later reference.

That inspection capability plugs into your quality system, giving you the dimensional traceability and conformance documentation that medical, defense, and aerospace supply chains require.

100% Gear Inspection

CERTIFIED. REGISTERED. ACCOUNTABLE.

Our quality system is built for regulated supply chains. ISO 9001 certification and ITAR registration let us take on defense and aerospace-adjacent programs, and we back that up with process discipline, inspection, and traceability on every production run.

ISO 9001:2015 Certified

INSCO holds a certified ISO 9001:2015 Quality Management System that covers every stage of manufacturing, from contract review and process planning through production, inspection, and delivery. Documented procedures and corrective-action discipline keep quality consistent and repeatable from run to run.

Scope: Design, manufacture, and assembly of precision gears, gearboxes, and gear-related products for all industries.
Registrar: NSF-ISR  ·  Certificate No.: 6R311-IS11  ·  Valid through: Aug 17, 2028

Download ISO 9001 Certificate
ITAR Registered

INSCO is registered under the International Traffic in Arms Regulations (ITAR), enabling participation in regulated defense and aerospace-adjacent supply chains. We handle controlled technical data and program requirements with the documentation and process control these programs demand.

Registered with the U.S. Department of State, Directorate of Defense Trade Controls (DDTC).
Precision Machining

Tight-tolerance gear and component manufacturing under one roof.

Controlled Heat Treatment

Specified, repeatable heat-treatment processes via qualified partners.

Comprehensive Inspection

In-process and final inspection with full conformance documentation.

Engineering Collaboration

Close collaboration with customers from print review through delivery.

QC / INSPECTION EQUIPMENT

Our inspection lab has dedicated gear inspection instruments, a CMM, and hardness testing, so we can verify every critical dimension and gear quality parameter.

Analytical Gear Inspection

Dedicated analytical gear inspection machines for involute profile, lead, pitch, and runout measurement against AGMA standards.

  • · M&M Analytical Gear Inspection Machine
  • · Penta Analytical Gear Inspection Machine
  • · 3× Vari-Roll VR-D-2 Ultra-Precision Gear Checkers
  • · ITW Parallel Axis Gear Checker Model 3518-2C
  • · 6× United Tool Supply Model 8600 Pitch Diameter Checkers
  • · Capacity to 36", with chart recorder
CMM & Dimensional Inspection

3D coordinate measurement and dimensional verification for all gear features, bores, faces, and geometries.

  • · Zeiss Contura G2 CMM, direct computer control
  • · Federal Formscan Cylindricity Checker
  • · Mahr Parallel Axis Gear Checker
  • · Alina Gear Checker with Recording Equipment
  • · 2× Superior Gear Checkers
  • · Mitutoyo PJ250-C Optical Comparator
  • · Micrometers to 36" / Precision Sine Plate
Hardness & Surface Testing

Material hardness checks across all the relevant scales, so we confirm the heat treatment meets spec before anything ships.

  • · Rockwell Superficial Hardness Tester
  • · Wilson Tukon Micro-Hardness Tester
  • · FIE Rockwell Hardness Tester
  • · Louis Small Brinell Hardness Tester
  • · Granite Surface Plates & Height Gauges
  • · Master & Working Gauge Block Sets
  • · Spur & Helical Master Gears (DP & Module)

WHAT IS MEASURED AND DOCUMENTED

Gear Geometry Parameters
Involute ProfileTooth form inspection to AGMA 2000, AGMA 2015, DIN 3960, ISO 1328, and JIS B 1702
Lead / HelixLead form, slope, and crowning
Pitch (Spacing)Index, accumulated pitch error
RunoutTotal composite runout / eccentricity
Tooth ThicknessOver-pin, over-wire, span measurement
Surface FinishRa measurement per application requirement
Quality ClassCertified to drawing or customer spec
Dimensional & Material Parameters
Bore / IDDiameter, roundness, cylindricity
OD / Tip DiameterOutside diameter and runout
Face WidthParallelism and squareness to bore
Keyway / SplineWidth, depth, position per drawing
HardnessSurface and core hardness per specification
Material CertMill certifications available on request
DocumentationFull inspection report / CMM report available

BORE, TORQUE & SPECIALTY GAUGING

Bore & Hole Gauging

9× Sunnen PG-700 hole gauges to .000050" accuracy. 24 Sunnen Dial bore gauges. 2× Standard dial bore gauges 6"–26". Mitutoyo dial gauge stands.

Torque Testing

3× Waters torque watches. Power Equipment dynamic torque checker. Assembly torque verification for gearbox programs.

Gear Wires & Master Gears

Complete library of gear measuring wires and balls (Inch & Metric). Spur and helical master gears in DP and Module. Large plug gauge library.

DOCUMENTATION & TRACEABILITY

Every INSCO gear can ship with a complete document package and permanent traceability, the kind the regulated medical, defense, and aerospace supply chains we serve expect.

Document Package

Heat-treat certification, material analysis, dynamic balance results, and "red-line" master-gear inspection charts, assembled to MIL-Standard and your specified requirements.

Serialized Traceability

Inspection travelers record actual measurements by gear serial number at each operation. Parts can be stamped with part number, serial number, measurement-over-wires, and purchase-order number for permanent traceability.

SPC & Data Collection

High-volume manufacturing cells run under Statistical Process Control, each outfitted with a Unite-A-Matic gear-inspection data-collection system networked to in-line PCs for real-time monitoring.

QUALITY & INSPECTION: COMMON QUESTIONS

INSCO is capable of tooth form inspection to AGMA 2000, AGMA 2015, DIN 3960, ISO 1328, and JIS B 1702. Measurements are performed on analytical gear inspection equipment, with full documentation and traceability provided against the applicable standard and your specifications.

EVERY GEAR INSPECTED. EVERY SHIPMENT DOCUMENTED.

Request a quote and discuss your inspection and documentation requirements with our engineering team.

Request a Quote