Class code 3638: Ball or Roller Bearing Mfg.
Class 3638 is the NCCI workers' comp code for “Ball or Roller Bearing Mfg.”.
The facts
- Official wording (NCCI)
- Ball or Roller Bearing Mfg.
- Industry group (our dictionary)
- Manufacturing
- Hazard group
- B
- State codes that differ
- CA 3632 · DE 0467 · PA 0467 · TX 3620
- Line
- Workers' comp
What it means
Class 3638 is the code carriers use to rate workers' comp payroll for this kind of work.
NCCI hazard group B, on a scale from A (least severe claims) to G (most severe).
Some states use their own code for this work: California 3632, Delaware 0467, Pennsylvania 0467, Texas 3620.
Who writes class 3638, state by state
From our live eligibility engine, refreshed every day (page updated November 1, 2026). It shows who has appetite, not a price. The final decision is always the carrier's underwriter.
Instant quote available 47
By email or underwriter only 0
No market listed yet 0
State fund only 4
North Dakota (North Dakota Workforce Safety & Insurance) · Ohio (Ohio Bureau of Workers' Compensation) · Washington (Washington Department of Labor & Industries) · Wyoming (Wyoming Department of Workforce Services)
Carriers with appetite for class 3638
- Travelers · 47 states · instant quote
- Employers · 45 states · instant quote
- CopperPoint · 19 states · instant quote
- AmTrust · 2 states · instant quote
- Markel · 1 state · instant quote
- Chubb · 47 states
- FCBI · 47 states
- PIE- Sirius America Insurance Company · 47 states
- V3- National Liability & Fire Insurance Company · 47 states
- Ascendant Commercial Insurance · 46 states
- Trean / 7710 Insurance · 46 states
- Trean / American Liberty Insurance Company · 46 states
- Amerisafe · 28 states
- Omaha National · 28 states
- Accident Insurance Company · 15 states
- AIG · 7 states
- Accident Fund Insurance Company Of America · 5 states
What does class code 3638 cover?
Class 3638 is the NCCI workers' comp code for “Ball or Roller Bearing Mfg.”. Carriers use it to rate the payroll of people doing this kind of work. It sits in NCCI hazard group B.
Who writes class code 3638 workers' comp?
In our live appetite data (updated November 1, 2026), 17 carriers have appetite for class 3638 in at least one state, and 5 of them quote it instantly. An instant quote is available in 47 states. The final decision is always the carrier's underwriter.
Does every state use class code 3638?
No. In our dictionary these states use their own code for this work: California 3632, Delaware 0467, Pennsylvania 0467, Texas 3620. North Dakota, Ohio, Washington and Wyoming write workers' comp through the state fund.