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ZZ Deep Groove Ball Bearings Manufacturer
Metal shielded deep groove ball bearings for high-speed, low-friction and low-maintenance industrial applications.
Haron Bearing supplies ZZ / 2Z deep groove ball bearings with metal shields on both sides, designed for grease retention, basic dust protection, smooth rotation and stable performance in motors, fans, pumps, gearboxes, conveyors and general machinery.
What Are ZZ Deep Groove Ball Bearings?
ZZ deep groove ball bearings are single row deep groove ball bearings equipped with metal shields on both sides. The shields help retain grease inside the bearing and reduce the entry of larger dust particles, while maintaining lower friction than contact rubber seals. They are commonly selected for high-speed and low-maintenance rotating applications.
- ZZ / 2Z = metal shields on both sides
- Lower friction than contact sealed bearings
- Better grease retention than open bearings
- Suitable for high-speed general machinery
- Common in electric motors, fans, pumps and gearboxes
ZZ Deep Groove Ball Bearing Specifications
Standard and custom parameters available for OEM machinery and industrial replacement requirements.
| Bearing Type | Single Row Deep Groove Ball Bearing |
| Shield Type | ZZ / 2Z Double Metal Shields |
| Material | Chrome Steel GCr15 / 52100, Stainless Steel Optional |
| Cage | Pressed Steel Cage / Brass Cage / Nylon Cage Optional |
| Precision Grade | P0 / P6 / P5 / P4 / P2 Optional |
| Clearance | C2 / CN / C3 / C4 |
| Noise & Vibration | Z1-Z4 / V1-V4 |
| Lubrication | Standard / High-Speed / High-Temperature Grease |
| Bore Range | Custom according to model and drawing |
| Series | 6000, 6200, 6300, 6800, 6900, 16000 and custom series |
| Service | OEM / ODM / Private Label / Drawing Review |
* Exact dimensions, load ratings and speed limits should be confirmed by bearing model, working speed, load, temperature and application environment.
Popular ZZ Deep Groove Ball Bearing Series
We engineer and supply a comprehensive range of standard series, precision-crafted to match diverse shaft dimensions, speed ratings, and complex load requirements for global industries.
6000ZZ Series
An extra-light bearing series specifically engineered for compact motors, small gearboxes, and precision instruments. It delivers exceptional rotational accuracy in space-constrained environments.
- High-Speed Optimization: Advanced internal geometry minimizes friction, allowing for sustained high-speed operations without excessive heat generation.
- Space Efficiency: Reduced cross-sectional area makes it the ideal choice for miniaturized mechanical assemblies.
- Dual Shielding (ZZ): Premium metal shields effectively prevent particulate ingress while retaining factory-filled lubrication.
6200ZZ Series
Our most versatile light-duty series, featuring a perfectly balanced structure. It is the industry standard for electric motors, industrial pumps, HVAC fans, and automated conveyors.
- Balanced Performance: Offers an optimal ratio between radial load capacity and maximum operational speed.
- Robust Durability: Forged from high-grade bearing steel to ensure extended fatigue life under continuous operation.
- Universal Compatibility: Standardized dimensions guarantee seamless integration across global manufacturing platforms.
6300ZZ Series
A robust medium-duty series designed with a larger ball complement and thicker rings. It provides significantly higher load capacity than the 6200 series for demanding industrial environments.
- Heavy Load Handling: Engineered to withstand substantial radial loads and moderate axial loads in both directions.
- Vibration Resistance: Structural rigidity minimizes vibration and noise in heavy machinery and agricultural equipment.
- Strong Shaft Support: Ideal for applications requiring rigid shaft positioning under fluctuating dynamic loads.
6800ZZ Series
A specialized thin-section series developed for ultra-compact spaces. It offers exceptionally low torque and enables lightweight equipment design without compromising precision.
- Ultra-Low Profile: Minimizes weight and footprint, crucial for modern electronics and precision mechanisms.
- Low Starting Torque: Ensures smooth, immediate rotation, making it perfect for sensitive instrumentation.
- High Rotational Accuracy: Manufactured to stringent tolerances to prevent runout in delicate assemblies.
6900ZZ Series
A specialized thin and light series that bridges the gap between standard and ultra-thin bearings. It delivers high-speed capabilities while significantly optimizing equipment weight.
- Optimal Stiffness-to-Weight: Provides excellent structural rigidity without adding unnecessary mass to the system.
- High-Speed Dynamics: Engineered for rapid acceleration and deceleration in dynamic automated environments.
- Thermal Stability: Efficient heat dissipation characteristics, ideal for enclosed, high-RPM applications.
Stainless Steel ZZ Series
Premium stainless steel shielded bearings developed specifically for harsh, moisture-rich, or corrosive environments where standard chrome steel would degrade rapidly.
- Superior Corrosion Resistance: Manufactured from high-grade stainless steel (e.g., AISI 440C) to withstand water, steam, and mild chemicals.
- Food Grade Compliance: Suitable for use in food processing and pharmaceutical equipment requiring strict hygiene protocols.
- Extended Lifecycle: Significantly reduces maintenance costs and downtime in challenging operational environments.
ZZ vs 2RS vs Open Deep Groove Ball Bearings
Understanding the difference in sealing structures helps prevent premature failure in different environments.
Open Type
- • No shields or seals
- • Lowest friction
- • Best for clean environments
- • Requires external lubrication or protected housing
- • Good for high speed when contamination is controlled
ZZ / 2Z Type
- • Metal shields on both sides
- • Lower friction than rubber seals
- • Better grease retention than open type
- • Basic dust protection
- • Best for motors, fans, pumps, gearboxes and general machinery
2RS Type
- • Rubber seals on both sides
- • Better protection against dust and moisture
- • Higher friction than ZZ type
- • Lower speed than open or ZZ in many cases
- • Best for dusty or slightly wet environments
Conclusion: Choose ZZ deep groove ball bearings when your application needs a balance of speed, low friction, grease retention and basic contamination protection.
Not sure which sealing type to choose?
Common Problems When Sourcing ZZ Deep Groove Ball Bearings
How Haron Bearing resolves typical procurement and application challenges.
Wrong Shield Type
Problem: Wrong shield type causes overheating or contamination in specific environments.
Solution: Haron helps confirm whether ZZ, 2RS or Open type is suitable based on speed, dust, temperature and lubrication conditions.
Unstable Noise Level
Problem: Unstable noise level affects electric motor quality and customer satisfaction.
Solution: We support Z1 / Z2 / Z3 / Z4 noise level options and apply noise and vibration inspection before delivery.
Clearance Mismatch
Problem: Clearance mismatch causes heat, vibration or short service life under operation.
Solution: C2 / CN / C3 / C4 clearance options are available according to working speed, fit and temperature rise.
Inconsistent Bulk Quality
Problem: Supplier cannot keep repeatable quality for bulk or long-term orders.
Solution: Haron controls incoming steel, heat treatment, grinding, superfinishing, assembly, greasing, shielding and final inspection.
Lack of Technical Support
Problem: Buyers only have old model numbers or drawings without clear specs.
Solution: Haron supports model interchange, drawing review, sample matching and OEM packaging.
Why Choose Haron Bearing for ZZ Deep Groove Ball Bearings?
Core manufacturing capabilities that ensure reliable performance in your machinery.
Precision Raceway Grinding
Stable raceway geometry helps reduce vibration, improve rotation smoothness and support long-term bearing performance.
Controlled Shield Assembly
Metal shields are assembled with controlled fit to help retain grease and protect against larger particles without creating unnecessary friction.
Noise & Vibration Control
Noise and vibration levels can be selected according to motor, fan, pump and precision equipment requirements.
Flexible OEM Supply
Support model interchange, custom clearance, grease, precision grade, packaging, laser marking and private label.
Factory-Direct B2B Supply
Founded in 2000, Haron Bearing supports global OEMs, distributors and industrial buyers with stable production capability and export-ready service.
Application-Based Selection
We do not only sell model numbers. We help match bearing structure, clearance, grease and precision according to load, speed and environment.
From Steel Inspection to Final Bearing Testing
Our comprehensive manufacturing and quality control process.
Steel Inspection
Ring Machining
Heat Treatment
Raceway Grinding
Superfinishing
Assembly
Greasing & Shielding
Noise Testing
Dimensional Insp.
Export Packing
Quality Audit
Global Logistics
Where Are ZZ Deep Groove Ball Bearings Used?
Ideal for applications requiring high speed, low friction, and grease retention.
Electric Motors
Low friction, low noise and stable rotation for motor shaft support.
Ask for Application Bearing
Fans & Blowers
Suitable for high-speed rotation and grease-retained operation.
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Pumps
Used in protected pump structures where low friction and basic dust protection are required.
Ask for Application Bearing
Gearboxes
Supports rotating shafts in compact power transmission assemblies.
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Conveyors
Reliable bearing solution for rollers, pulleys and material handling equipment.
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Power Tools
Compact ZZ bearings support high-speed rotation in small mechanical assemblies.
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Automation Equipment
Suitable for general rotating components with low torque and stable supply needs.
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Agricultural Machinery
Used in protected bearing positions where metal shields and grease retention are required.
Ask for Application BearingHow to Choose the Right ZZ Deep Groove Ball Bearing
Follow these steps to specify the correct bearing for your application, or submit your details and let our engineers assist you.
Confirm bearing model or dimensions
Need to confirm bore diameter d, outside diameter D, width B.
Confirm load and speed
Radial load, axial load, RPM and duty cycle affect bearing size, clearance and grease choice.
Confirm environment
ZZ is suitable for basic dust protection and lower friction. If moisture or fine dust is severe, 2RS may be better.
Confirm clearance and precision
Choose CN, C3 or other clearance based on fit, speed and temperature. Choose P0, P6, P5, P4 or P2 based on accuracy needs.
Confirm grease and temperature
Standard grease, high-speed grease or high-temperature grease can be selected according to working conditions.
Confirm packaging and supply plan
Bulk packing, individual box, private label, OEM packaging and export pallets are available.
Request a Quote
Custom ZZ Deep Groove Ball Bearing Options
Tailor the bearing specifications to perfectly match your equipment's operating conditions.
Built for Stable B2B Bearing Supply
Haron Bearing combines scale, precision, and reliable service to support global industrial buyers.
Factory Since 2000
Haron Bearing has long-term manufacturing experience for industrial bearing supply.
100 Production Lines
Stable production capacity for standard and OEM bearing orders.
Precision Control
Support P2 / P4 / P5 precision requirements according to different applications.
Quality Inspection
Inspection process covers material, dimensions, noise, vibration, appearance and packaging.
OEM / ODM Support
Support buyer drawings, samples, model interchange and private label packaging.
Export-Ready Service
Suitable for global distributors, OEMs, wholesalers and industrial project buyers.
FAQ About ZZ Deep Groove Ball Bearings
Common questions about technical specifications, selection, and OEM supply.
