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For procurement and engineering teams, every component choice affects uptime, maintenance budgets, and long-term reliability. The CE-6306-ZZ-V is engineered to reduce the risk of corrosion, wear and lubrication-related failure in demanding industrial environments.
Manufactured by TOJO Bearing, this full ceramic bearing features ZrO₂ rings and balls with a full ball complement design. Compared with conventional steel bearings, ZrO₂ ceramic construction offers excellent wear resistance and corrosion resistance, and can support dry-running in selected applications.
| Specification | Value |
| Bearing No. | CE-6306-ZZ-V |
| Bearing Type | Full Ceramic Ball Bearing (Full Ball Complement) |
| Standard Size | 30 × 72 × 19 mm (dimensionally interchangeable with standard 6306) |
| Ring Material | ZrO₂ (Zirconia) |
| Ball Material | ZrO₂ (Zirconia) |
| Cage Type | Full Ball Complement (Cageless) |
| Lubrication | Dry-running capable / Optional |
| Electrical Insulation | Yes (Non-conductive, >10¹² Ω·cm) |
| Corrosion Resistance | Excellent |
| Chemical Resistance | Excellent (except HF and hot concentrated H₂SO₄) |
| Temperature Capability | High-temperature capability, subject to application conditions |
| Speed Capability | Application-dependent; full ball complement design is generally intended for load-oriented applications |
| Customization | Available (size, seals, tolerance) |
Note: CE-6306-ZZ-V is dimensionally interchangeable with a standard 6306 bearing for applications where the ceramic bearing's load, speed, lubrication and operating conditions are suitable.
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ZrO₂ ceramic is selected for this bearing because it performs in environments where steel cannot: acidic and alkaline media, saltwater exposure, and applications requiring electrical insulation. It also offers higher fracture toughness than other ceramic materials, reducing the risk of brittle failure under shock loads.
The full ball complement design (cageless) allows a greater number of rolling elements than a comparable caged bearing, which can increase static load-carrying capability. This configuration is generally better suited for low-to-moderate speed applications, oscillating equipment, or where load capacity is prioritized over high-speed performance.
Speed capability, friction, lubrication and thermal behavior should be evaluated for the specific application.
| Feature | Steel 6306 Bearing | CE-6306-ZZ-V (ZrO₂) |
| Material | Bearing Steel | ZrO₂ Ceramic |
| Electrical Insulation | No | Excellent (>10¹² Ω·cm) |
| Corrosion Resistance | Limited | Excellent |
| Chemical Resistance | Low | High |
| Lubrication Requirement | Required | Dry-running capable / Optional |
| Wear Resistance | Moderate | Excellent |
| Load Capacity | Standard | High (full ball complement) |
| Non-Magnetic | No | Yes |
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-6306-ZZ-V is engineered for longevity. Fewer replacements mean less unplanned downtime and lower maintenance labor costs.
Eliminates Dependence on Conventional Lubrication
The low-friction properties of ZrO₂ enable dry-running capability in selected applications, reducing reliance on regular regreasing. For hard-to-reach bearings or clean environments (food processing, cleanrooms, vacuum systems), this reduces maintenance complexity and consumable costs.
Electrical Insulation & Non-Magnetic Properties
With resistivity >10¹² Ω·cm, this bearing prevents electrical arcing damage in motors and generators. Its non-magnetic characteristics make it suitable for MRI-related equipment and sensitive instrumentation.
Chemical equipment, washdown machinery, marine applications where steel bearings corrode rapidly.
Motors, generators, semiconductor equipment where electrical insulation is critical to prevent arcing damage.
MRI-related equipment, sensitive instrumentation and other applications where non-magnetic components are required.
Heavy-load equipment where full ball complement construction provides load capacity benefits.
TOJO Bearing provides comprehensive engineering and OEM services for ceramic bearing solutions:
Drawing review and application analysis
Material selection guidance (ZrO₂, Si₃N₄, hybrid)
Tolerance discussion for specific requirements
Prototype samples for validation testing
Batch production from small to high volumes
Private labeling and export packaging
Quality documentation with full traceability
ISO 9001 certified production facility
ZrO₂ ceramic material inspection and testing
Precision grinding and finishing processes
Bearing vibration and noise testing
Dimensional inspection with full traceability
Full ball complement assembly capability
Flexible batch production from prototypes to mass production
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Is CE-6306-ZZ-V interchangeable with standard steel 6306 bearings?
It is dimensionally interchangeable with a standard 6306 bearing (30 × 72 × 19 mm) for applications where the ceramic bearing's load, speed, lubrication and operating conditions are suitable.
What temperature can ZrO₂ ceramic bearings withstand?
ZrO₂ ceramic components offer high-temperature capability; the allowable bearing operating temperature depends on speed, load, lubrication, seals, internal clearance and other application conditions.
Does a full ceramic bearing require lubrication?
Lubrication requirements depend on speed, load, temperature, operating environment and service-life expectations. Dry-running capability may be possible in selected low-speed or specially engineered applications.
What is the advantage of full ball complement design?
The cageless design allows a greater number of rolling elements than a comparable caged configuration, which can increase load-carrying capability. Speed capability, friction, and thermal behavior should be evaluated for the specific application.
What is the difference between ZrO₂ and Si₃N₄ ceramic bearings?
ZrO₂ offers higher fracture toughness and superior corrosion resistance, ideal for chemical and harsh environments. Si₃N₄ provides higher hardness and is better for high-speed, high-load applications.
Can you supply customized ceramic bearings?
Yes. TOJO Bearing offers extensive customization in dimensions, materials, seals, and tolerances to meet specific application requirements.
Can I order samples before bulk production?
Yes. Prototype and sample quantities are available for application testing and validation before volume production.
What is the minimum order quantity?
MOQ is flexible. We can supply prototype quantities for testing and bulk production for OEM projects.
What information should I send for a quotation?
For a faster quotation, send us the bearing quantity, operating speed, load, temperature, lubrication condition and application environment.
Tell us your operating conditions and required quantity. Our engineering team will evaluate the application and provide a suitable bearing configuration and quotation.
For a faster quotation, send us:
Required quantity
Operating speed
Load
Temperature
Lubrication condition
Application environment
Required tolerance or customization
Contact:
tbc@tbcbearing.com
www.tojobearings.com
Our bearings, Your solutions!
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