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

Breadcrumb: [NAICS codes](https://bidrover.com/naics) › [333612 Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing](https://bidrover.com/naics/333612)

This U.S. industry comprises establishments primarily engaged in manufacturing gears, speed changers, and industrial high-speed drives (except hydrostatic).

- NAICS code: 333612
- Title: Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing
- Sector: 31-33 Manufacturing
- Subsector: 333 Machinery Manufacturing
- Industry group: 3336 Engine, Turbine, and Power Transmission Equipment Manufacturing
- NAICS industry: 33361 Engine, Turbine, and Power Transmission Equipment Manufacturing
- SBA size standard: 750 employees
- Open bids on BidRover: 2
- Updated: Oct 13, 2026

## Open bids (2)

- [30--DRIVE UNIT,ANGLE](https://bidrover.com/bids/30-drive-unit-angle--300c210e-65e8-4774-9113-2473f25d1c38) — General procurement · United States · due 2026-10-23
- [30--COUPLING,SHAFT,RIGID](https://bidrover.com/bids/30-coupling-shaft-rigid--a7f8968a-a171-43fd-b5c1-ad6fffe5fedd) — General procurement · United States · due 2026-10-23

## Frequently asked questions

### What is NAICS code 333612?

NAICS 333612 is "Speed Changer, Industrial High-Speed Drive, and Gear Manufacturing" in the 2022 North American Industry Classification System, in sector 31-33 (Manufacturing). This U.S. industry comprises establishments primarily engaged in manufacturing gears, speed changers, and industrial high-speed drives (except hydrostatic).

### What is the SBA size standard for NAICS 333612?

A business is small under NAICS 333612 at or below 750 employees, including affiliates (13 CFR 121.201). Confirm the standard named in each solicitation.

### How many government bids are open under NAICS 333612?

BidRover counts 2 open bids that cite NAICS 333612 as of Oct 13, 2026, refreshed every hour from official public sources. Many state and local notices do not list a NAICS code, so search by keyword too.

### How do I get alerts for NAICS 333612 bids?

Save an alert on this page. A free account gets new matching bids by weekly email; the Team plan ($19/mo) sends daily alerts with match scores, the buyer, source link and documents.

## Related NAICS codes

- [336350 Motor Vehicle Transmission and Power Train Parts Manufacturing](https://bidrover.com/naics/336350)
- [336413 Other Aircraft Parts and Auxiliary Equipment Manufacturing](https://bidrover.com/naics/336413)
- [333996 Fluid Power Pump and Motor Manufacturing](https://bidrover.com/naics/333996)
- [333611 Turbine and Turbine Generator Set Units Manufacturing](https://bidrover.com/naics/333611)
- [333613 Mechanical Power Transmission Equipment Manufacturing](https://bidrover.com/naics/333613)
- [333618 Other Engine Equipment Manufacturing](https://bidrover.com/naics/333618)

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Code titles and definitions: U.S. Census Bureau, North American Industry Classification System (NAICS), 2022 (https://www.census.gov/naics/). Size standards: U.S. Small Business Administration, Small Business Size Standards, 13 CFR 121.201, eCFR text current as of 2026-10-21 (https://www.ecfr.gov/current/title-13/section-121.201).

BidRover lists bids from official public sources. It is not an issuing authority; confirm the NAICS code and size standard named in each solicitation.