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PRODUCTSStandard chrome steel (GCr15 / AISI 52100) bearings corrode in washdown, marine, food and chemical environments. Stainless steel bearings solve this at three typical material tiers:
| Material | Corrosion resistance | Typical use | Hardness |
|---|---|---|---|
| AISI 304 | Moderate - resists water, weak acids | Food machinery, washdown conveyors | Ring only (soft, lower load) |
| AISI 440C | High - salt spray, mild chemicals | Marine, medical, chemical pumps | HRC 58-62 |
| 17-4PH | High + superior strength | Aerospace actuators, high-load marine | HRC 40-48 (aging adjustable) |
Food processing and packaging lines, ROV and underwater thrusters, chemical metering pumps, laboratory centrifuges, medical handpieces and textile machinery. See our ball bearing product range for standard items, or send us your application conditions for a material recommendation.
Send a drawing or sample with load, speed, temperature and media exposure. You receive a material + precision grade recommendation, unit price by quantity break, and lead time within 24 hours.
Ready to source? Request a quotation or email [email protected] - drawings, samples and OEM/ODM projects welcome. MOQ from 1 piece for prototypes.
Source: KMK Bearing
This article is prepared by the SINO BEARINGS (Sinoti Tech) engineering team, based on published bearing standards (ABEC / ISO P0–P2), material datasheets, and field application experience across industrial, food, medical and aerospace uses. For manufacturer background, certifications and facilities, see our About page.
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