Stainless Steel Bearings
440C stainless bearings for washdown, marine and food-grade service.
Stainless bearings for places that get wet or cleaned with chemicals. 440C resists corrosion for a bearing steel and still takes a decent load, which ceramic cannot at the same price.
4–6 weeks
25 pieces
ISO 9001:2015 · FDA-compliant grades
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Bore range | Ø3–Ø100 | mm |
| Precision class | ABEC 1–5 | - |
| Load capacity | Lower than 52100 | note |
| Sealing | Sealed / shielded | - |
| Grease | Food-grade option | - |
| Corrosion | Resists washdown | note |
Available Materials
- Stainless 440C (rings and balls)
- Stainless 316 (cages)
- Ceramic balls (hybrid)
- PTFE seals
Typical Applications
- Food machinery
- Marine deck equipment
- Washdown conveyors
- Chemical pumps
- Outdoor equipment
Surface Finishes
- Ground races
- Passivate
- Pre-lubricated (food-grade grease)
- Sealed
- Shielded
Industries Served
- Food Processing
- Marine
- Chemical Processing
- Water Treatment
- Pharmaceutical
What drives the price of this part
Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.
- Part size
- Bore range at Ø3–Ø100 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
- Order size
- Minimum order is 25 pieces, where setup and tooling are amortised across the batch and per-part cost settles around cycle time and material. Below that quantity the same part costs more per piece, not less.
- Certification and paperwork
- ISO 9001:2015, FDA-compliant grades. On a certified family the inspection and documentation work is part of the price: first article inspection, material traceability and the dimensional report are produced per order, not per sample.
See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.
How these parts are inspected
Matched to the callouts above and the instruments actually on the floor.
- Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
- Dimensional report against the drawing, with a 100% check on critical features rather than a sample
- Certificate of conformance and the mill certificate with every shipment
- Bore gauges and an optical comparator for hole position and edge form
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- Are stainless bearings really corrosion proof?
- Resistant, not proof. 440C holds up to washdown and mild chemicals but will pit in chlorides over time - for salt water, use a ceramic or a fully sealed bearing.
Related part families
Miniature Bearings
Instrument bearings from Ø1 mm bore, with tight runout and low starting torque.
Ceramic Ball Bearings
Full ceramic and hybrid bearings for high speed, insulation and dry running.
Precision Ball Bearings
ABEC 5–7 deep-groove and angular contact ball bearings, runout verified on every finished race.