Federal NAICS Codes

NAICS 333612: Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing

Explore obligations, trends, recent awards, and incumbent contractors for NAICS 333612.

NAICS 333612 federal market metrics

Total obligations
$3.4B
Total awards
53,252 awards
Active obligations
$724M
Size standard
750 employees

What this NAICS covers

NAICS 333612 covers manufacturing speed changers, industrial high-speed drives, mechanical gears, gearboxes, and related power-transmission components, including machining, gear cutting, heat treating, assembly, factory testing, and maintaining production quality and inspection records.

Federal opportunities under 333612 typically involve producing and delivering gear drives and speed-change assemblies that meet specified performance, testing, and inspection criteria, including production scheduling, factory acceptance testing, traceable quality documentation, spare parts provisioning, and delivery logistics.

FY2025 snapshot

Obligations
$60.9M
Awards
1,718
Average award
$35.4K
Change from FY2024
+20.3%

Recent awards

Search contractors

$22,658

TECHCRANE INTERNATIONAL LLC

Great Lakes St Lawrence Seaway Development Corporation

PIID
6923G526P0039
PSC
3020 - GEARS, PULLEYS, SPROCKETS, AND TRANSMISSION CHAIN

$505,912

TIMKEN GEARS & SERVICES INC

Great Lakes St Lawrence Seaway Development Corporation

PIID
6923G526C0008
PSC
J030 - MAINT/REPAIR/REBUILD OF EQUIPMENT- MECHANICAL POWER TRANSMISSION EQUIPMENT

$339,010

MARVIN ENGINEERING CO, INC

Defense Logistics Agency

PIID
SPE7L126P4913
PSC
3010 - TORQUE CONVERTERS AND SPEED CHANGERS

$80,686

KARL SENNER, L.L.C.

US Coast Guard

PIID
70Z04026F51509B00
PSC
J020 - MAINT/REPAIR/REBUILD OF EQUIPMENT- SHIP AND MARINE EQUIPMENT

$5,798

SPAIRES INC

Defense Logistics Agency

PIID
SPE7L126P4658
PSC
3010 - TORQUE CONVERTERS AND SPEED CHANGERS

$61,516

LINMARR ASSOCIATES, INC.

Defense Logistics Agency

PIID
SPE7L126V6572
PSC
3010 - TORQUE CONVERTERS AND SPEED CHANGERS

$325

TRIMAN INDUSTRIES INC

Defense Logistics Agency

PIID
SPE7L126V6521
PSC
3020 - GEARS, PULLEYS, SPROCKETS, AND TRANSMISSION CHAIN

FAQ

What work fits NAICS 333612?
  • Production of helical, bevel, and spur gears to print with material certifications, gear tooth profile inspection reports, and hardness testing records.
  • Assembly and factory acceptance testing of gearboxes including torque testing, vibration analysis, balancing certificates, and test-run data packages.
  • Prototype and low-volume runs for custom speed changers with engineering drawings, bills of materials, first-article inspection reports, and build-to-print documentation.
  • Supply of replacement gearing components with lot traceability, nondestructive inspection results, packing lists, and delivery to maintenance depots.
When is NAICS 333612 a weak fit?
  • Electric motor or generator manufacturing where winding, electrical testing, and insulation class are primary deliverables and electrical assemblies dominate over mechanical gearing.
  • Hydraulic or pneumatic power transmission systems where fluid power components, seals, and valve controls are central rather than machined gear trains and gearboxes.
  • Structural steel fabrication and welded assemblies where the contract focuses on large welded structures and plate work rather than precision gear manufacturing and finishing.
What solicitation language points to NAICS 333612?
  • Technical drawings specify gear tooth profile, tolerances, runout limits, surface finish, and require gear inspection reports and material certificates with deliveries.
  • Performance testing requirements include specified torque capacity, allowable backlash, efficiency measurements, vibration limits, and documented acceptance test procedures.
  • Labor categories request gear designers, CNC gear machinists, heat-treat operators, assembly technicians, and quality inspectors experienced in gear metrology and balancing.

Put this market knowledge to work

Now that you know about NAICS 333612 - Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing, let Sweetspot help you find and win relevant government contracts with AI-powered tools.

Schedule a Demo
Track awards in this NAICS Find contractors winning here Get alerts for new awards Analyze recompete timing