333612 — Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
Description
This U.S. industry comprises establishments primarily engaged in manufacturing gears, speed changers, and industrial high-speed drives (except hydrostatic).
Exclusions & Cross-References
- Manufacturing motor vehicle power transmission equipment--are classified in Industry 336350, Motor
- Vehicle Transmission and Power Train Parts Manufacturing;
- Manufacturing aircraft power transmission equipment--are classified in U.S. Industry 336413, Other
- Aircraft Parts and Auxiliary Equipment Manufacturing; and
- Manufacturing industrial hydrostatic transmissions--are classified in U.S. Industry 333996, Fluid Power
- Pump and Motor Manufacturing.
- MANUFACTURING 255
Overview Facts
| NAICS Code | 333612 |
|---|---|
| Industry Title | Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing |
| SBA Size Standard | 750 employees |
| U.S. Establishments | 205 (Census CBP, 2023) |
| IRS PBA Code | 333610 (rolled-up match) |
| Sectors Hierarchy | Sector 31-33 → 333 → 3336 |
| Source / Verified | US Census 2022 NAICS Manual, Census CBP / 2026-06-28 |
Legacy SIC Concordance
Trace the historical mapping chain from the 1987 Standard Industrial Classification (SIC) to the modern 2022 NAICS code format.
- SIC 3566 - Speed Changers, Industrial High-Speed Drives, and Gears (via SIC1987:3566→NAICS1997:333612→2002:333612→2007:333612→2012:333612→2017:333612→2022:333612)
Suggested Product Service Codes (Advisory)
The following Product Service Codes (PSCs) are advisory suggestions aligned with this NAICS code. Note: NAICS and PSC codes map to different dimensions of procurement (industry vs. product/service). There is no official binding 1:1 crosswalk.
- PSC 3020 — Gears, Pulleys, Sprockets, and Transmission Chain
Source: DoD DPCAP PSC Selection Tool (Ingested: 2026-06-29)
Related Resources & Compliance Guides
Further regulatory reference links for NAICS code 333612:
- Sector 31-33 Directory Hub — List of related industries in the Manufacturing sector.
- SIC ↔ NAICS Crosswalk Tool — Look up mappings between legacy SIC codes and modern classifications.
- SBA Size Standards Guide — Complete rules and averaging periods for small business classifications.
- Calculating Annual Receipts Guide — Detailed worked example of revenue calculation rules.
- IRS Principal Business Activity Guide — How NAICS codes map to corporate and entity tax filings.
Related Industries in 3336
Frequently Asked Questions (FAQ)
Is 333612 a valid 2022 NAICS code?
NAICS 333612 is 'Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing', a 2022 U.S. national industry under Sector 31-33 (Manufacturing); the SBA small-business size standard is 750 employees.
What is the SBA size standard for NAICS 333612?
The SBA small business size standard for NAICS 333612 is 750 employees (based on employees).
What is the legacy SIC code mapping for 333612?
NAICS code 333612 maps to the legacy 1987 SIC codes: 3566 - Speed Changers, Industrial High-Speed Drives, and Gears.