CE-624-ZZPT

CE-624-ZZPT ZrO₂ Ceramic Bearing | Lubrication-Free Corrosion Resistant Solution
Full Ceramic ZrO₂ · PTFE Cage · Ideal for Vacuum, Chemical & Precision Applications

Why This Bearing Matters to Your Operation

For procurement and engineering teams, every component choice affects uptime, maintenance budgets, and long-term reliability. The CE-624-ZZPT is engineered to eliminate the common failure points of steel bearings—corrosion, wear, and lubrication failure—in the most demanding industrial environments.

Manufactured by TOJO Bearing, this full ceramic zirconia bearing is designed for applications requiring corrosion resistance, chemical stability, and lubrication-free operation. Constructed with ZrO₂ rings and balls and a PTFE cage, it delivers superior strength, exceptional corrosion resistance, and inherently low friction. It outperforms steel in wear resistance and operates reliably without lubrication, ensuring durability and precision under extreme conditions.

Key Advantages for Procurement

• Reduced Downtime · Lower TCO

• Electrically Insulating (>10¹² Ω·cm)

• Corrosion & Chemical Resistant

• Wide Temperature Range

• Non‑Magnetic · Zero Particle Attraction

• Dry-Running · Low Friction

Detailed Advantages

Reduced Downtime, Lower Total Cost of Ownership
Steel bearings in harsh conditions often fail within months due to corrosion, pitting, or abrasive wear. The CE-624-ZZPT is engineered for longevity. Its full ceramic construction and PTFE cage resist chemical attack, enable low-friction dry-running, and withstand extreme temperatures. Fewer replacements mean less unplanned downtime and lower maintenance labor costs.

Eliminates Dependence on Conventional Lubrication
The PTFE cage provides excellent dry-running performance, significantly reducing reliance on regular regreasing. For hard-to-reach bearings or clean environments (food processing, cleanrooms, vacuum systems), this feature reduces maintenance complexity and consumable costs.

Protects Against Electrical Damage
In motors and generators, stray currents cause fluting and premature failure of steel bearings. The CE-624-ZZPT is a complete electrical insulator (resistivity >10¹² Ω·cm), preventing electrolytic damage and extending motor life—critical for VFD-driven equipment.

Non‑Magnetic, Non‑Contaminating
With zero magnetic signature, this bearing is essential for sensitive equipment like MRI machines, semiconductor tools, and aerospace guidance systems. It does not attract magnetic particles, ensuring cleaner operation in sterile or high‑purity environments.

Why Choose ZrO₂ Over Steel?

Technical Specifications

Temperature Note: ZrO₂ rings support -80°C to +400°C, but actual operating temperature depends on cage, speed, load, and atmosphere. PTFE cages perform well up to 260°C continuous.

Common Failure Problems Solved

• Chemical Corrosion: Steel raceways corrode under acids and chemicals. ZrO₂ offers complete resistance.

• Lubricant Contamination: Grease cannot be used in clean environments. This bearing runs dry.

• Maintenance Difficulty: Hard-to-access equipment needs long maintenance intervals. Self-lubricating design extends service life.

• Electrical Insulation: Ceramic prevents current passage, eliminating electrical arcing damage.

Typical Applications & Industries

• Semiconductor Equipment (vacuum, wafer handling)

• Medical Devices (surgical, dental, MRI)

• Aerospace Components (actuators, guidance)

• High‑Speed Spindles & Turbines

• Chemical Processing & Marine

• Food Processing Machinery

• Vacuum Equipment OEMs

Relevant for: Semiconductor Bearing · Vacuum Bearing · Food Grade · Corrosion Resistant

Why Procurement Teams Choose This Bearing

• Risk Reduction: Eliminates corrosion, wear, and lubrication failures—top causes of bearing replacement.

• Cost Certainty: Higher initial cost is offset by extended life, reduced maintenance, and fewer interruptions.

• Supply Chain Confidence: ISO‑certified production ensures consistent quality and traceability.

• Versatility: One bearing type can be specified across multiple demanding applications.

OEM Manufacturing & Supply

TOJO Bearing specializes in high-performance special bearings, including full ceramic, hybrid, and customized solutions for semiconductor, vacuum, and precision equipment industries.

OEM capabilities:

• Custom dimensions, tolerances, and materials

• Alternative cages (PEEK, PA66, full complement)

• Private labeling and packaging

• Batch production from prototypes to mass production

• 100% inspection with full traceability

With ISO‑certified facilities and a dedicated engineering team, TOJO Bearing ensures consistent quality, reliable delivery, and long-term partnership for OEM customers worldwide.

Frequently Asked Questions

What is CE-624-ZZPT used for?
Demanding applications needing corrosion resistance, lubrication-free operation, and high precision—semiconductor, medical, aerospace, and chemical industries.

Is it a full ceramic bearing?
Yes. ZrO₂ rings and balls with a PTFE cage.

Can it run without lubrication?
Yes, the PTFE cage enables dry-running, reducing dependence on external lubrication.

ZrO₂ vs. Si₃N₄?
ZrO₂ offers higher fracture toughness and corrosion resistance; Si₃N₄ is harder and better for high-speed, high-load applications. ZrO₂ is preferred for chemical and vacuum environments.

Suitable for vacuum?
Absolutely. Non-porous, non-outgassing, and can run without lubricants—ideal for high and ultra-high vacuum systems.

Can you supply custom bearings?
Yes. TOJO offers extensive customization in dimensions, materials, cages, seals, and tolerances.

Which industries use zirconia bearings?
Semiconductor, medical, food processing, chemical, aerospace, and precision instrumentation.

Replace stainless steel bearings?
Yes, especially in corrosive, electrically conductive, or lubrication-sensitive environments.

Lead time?
Prototypes: 2-3 weeks; mass production: 4-6 weeks after order confirmation.

MOQ?
Flexible. Contact us with your project needs for a tailored quote.

Request CE-624-ZZPT Engineering Evaluation

Provide your application details for a technical review:

• Application environment & operating conditions

• Temperature, speed & load requirements

• Preferred quantity & target lead time

• Customization needs (dimensions, cage, etc.)

Our engineering team will evaluate and recommend the optimal solution for your specific use case.

Contact:
tbc@tbcbearing.com
www.tojobearings.com

Click here to contact our bearing specialists for a quotation or technical consultation.

TOJO Bearing
Our bearings, Your solutions!
The finest high quality special bearing for you!

Make the switch to ZrO₂ ceramic bearings — and reduce your maintenance headaches for good.