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Oct . 12, 2025 11:25 Back to list

Zirconia Deep Groove Ball Ceramic Bearings 6200 6201 | Inert


Why Zirconia Deep Groove Ball Bearings (6200/6201) Are Quietly Replacing Steel in Tough Environments

A lot of engineers I speak with quietly admit they’ve been burned by corrosion or unexpected downtime. That’s why interest in Zirconia deep groove ball ceramic bearings 6200 6201 has surged. Actually, it’s more than a trend—full-ceramic (ZrO2) bearings are now standard kit in chemical pumps, wash-down conveyors, and even some wafer tools. They run clean, shrug off most acids, and keep turning when lubrication gets dicey.

Zirconia Deep Groove Ball Ceramic Bearings 6200 6201 | Inert

What sets ZrO2 apart (and where it wins)

Zirconia (Y-TZP) is dense, tough, and electrically insulating. In fact, many customers say the biggest surprise is how quiet the bearings run after a few months of steam cleanings. You still have to pick the right cage—PEEK or PTFE—and be realistic about speed and temperature. But compared with steel, the payback comes from uptime.

Zirconia Deep Groove Ball Ceramic Bearings 6200 6201 | Inert

Product snapshot and indicative specs

Model Size (bore×OD×W, mm) Material Cage Precision Speed (grease) Temp
6200 (full-ceramic) 10×30×9 ZrO2 rings & balls PEEK or PTFE P6 ≈ ISO 492; P5 optional up to ≈ 24,000 rpm -40 to ≈ 240°C (cage-limited)
6201 (full-ceramic) 12×32×10 ZrO2 rings & balls PEEK or PTFE P6 ≈ ISO 492; P5 optional up to ≈ 22,000 rpm -40 to ≈ 240°C (cage-limited)
Bench data (typical, real-world use may vary): Vickers hardness ZrO2 ≈ 1200 HV; ball grade per ISO 3290-2 G5–G10; Ra inner raceway ≈ 0.05–0.1 μm; static corrosion tests: no visible pitting after 72h in 5% NaCl at 23°C.
Zirconia Deep Groove Ball Ceramic Bearings 6200 6201 | Inert

Where they’re used (and why)

  • Chemical dosing pumps and scrubbers: corrosion resistance and electrical insulation.
  • Food & beverage conveyors: wash-down cycles, minimal particle shedding.
  • Semiconductor wet benches: low outgassing, clean operation.
  • Medical/lab gear: non-magnetic assemblies and autoclave cycles.

Process flow and quality gates

Materials: Y-TZP zirconia powder → cold isostatic pressing → sintering → precision grinding → superfinishing → ultrasonic clean. Methods: raceway form grinding; ball manufacturing to ISO 3290-2; cages machined PEEK/PTFE. Testing: dimensional per ISO 492 (P6/P5), hardness per ASTM C1327, roundness via air-gauge, noise/vibration (VCM), salt-spray screening. Service life: estimated by ISO 281 (L10h), adjusted for ceramic contact and application load—ask for a life calculation with your duty cycle.

Zirconia Deep Groove Ball Ceramic Bearings 6200 6201 | Inert

Vendor snapshot (what buyers compare)

Criteria BTZ Bearing (Hebei, CN) Brand E (EU) Trader T (mixed)
Origin No. 3, Area B, Linxi County, Xingtai, Hebei EU plant Various OEMs
Material certs COC + ball grade to ISO 3290-2 Full traceability On request (varies)
Lead time 2–4 weeks typical 4–8 weeks Stock-dependent
Customization Cage, seals (2RS/ZZ), clearance (C3/C4) Yes (premium) Limited
Price band Mid High Low–Mid

Real-world notes and quick case files

  • Chemical pump OEM: switched to Zirconia deep groove ball ceramic bearings 6200 6201, doubled seal life; operators noticed cooler running.
  • Bakery line: Zirconia deep groove ball ceramic bearings 6200 6201 with PTFE cage survived weekly caustic wash; noise dropped ≈ 3 dB.
  • Lab centrifuge: non-magnetic layout using Zirconia deep groove ball ceramic bearings 6200 6201 eliminated eddy-current heating; speed stability improved.

Customer feedback? “Didn’t expect them to look this good after the third CIP cycle,” one plant tech told me—slightly amazed, to be honest.

Ordering and customization tips

Share your medium (chemistry), duty cycle, target L10h, and cleanliness class. Ask for ISO 281 life calc, ISO 492 inspection sheet, and ball grade certs. For food contact, PTFE per FDA is a safer bet; PEEK if you need higher temp and stiffness.

Authoritative references

  1. ISO 281: Rolling bearings — Dynamic load ratings and rating life. https://www.iso.org/standard/39167.html
  2. ISO 492: Rolling bearings — Radial bearings — Tolerances. https://www.iso.org/standard/50393.html
  3. ISO 3290-2: Rolling bearings — Balls — Ceramic. https://www.iso.org/standard/61061.html
  4. ASTM C1327: Vickers Indentation Hardness of Advanced Ceramics. https://www.astm.org/c1327
  5. FDA 21 CFR 177.1550 (PTFE). https://www.ecfr.gov/current/title-21/section-177.1550
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