6306 ZZ Metal Shielded Ball Bearing
The 6306 ZZ metal shielded ball bearing is engineered to deliver high-load capacity, smooth rotation, and long-term reliability in medium to heavy-duty industrial and mechanical applications. Its double metal shield (ZZ) design protects the internal bearing components from dust, debris, and solid contaminants while securely retaining factory-applied lubrication.
Manufactured with precision-ground steel balls and hardened raceways, this bearing ensures low friction, reduced vibration, and stable performance even during continuous operation. The deep groove structure allows the bearing to carry high radial loads and moderate axial loads in both directions, making it suitable for demanding machinery and equipment.
The maintenance-free design minimises servicing requirements, reduces downtime, and supports consistent performance across a wide range of operating conditions.
Key Features and Benefits
Double Metal Shield (ZZ)
Protects against dust and solid particles while preserving internal lubrication.
High Load Capacity Design
Suitable for medium to heavy-duty industrial applications.
Precision Steel Ball Construction
Provides smooth, low-friction rotation and reduced operational noise.
Factory Pre-Lubricated
Ready for immediate installation with no additional lubrication required.
Deep Groove Bearing Structure
Handles radial loads and moderate axial loads efficiently.
Durable Bearing Steel
Ensures high wear resistance and extended service life.
Technical Specifications
Bearing Type: Deep groove ball bearing
Model: 6306 ZZ
Shield Type: Double metal shield (ZZ)
Inner Diameter: 30 mm
Outer Diameter: 72 mm
Width: 19 mm
Material: High-grade bearing steel
Lubrication: Factory pre-lubricated
Maintenance: Maintenance-free under normal operating conditions
Operating Speed: Suitable for high-speed applications
Application: Electric motors, pumps, compressors, fans, conveyors, industrial machinery, mechanical systems
Advantages and Disadvantages
Advantages
High resistance to dust and solid contaminants
Smooth and stable rotational performance
High load-carrying capability
Long service life with minimal maintenance
Wide compatibility with industrial equipment
Disadvantages
Not suitable for applications exposed to liquids or moisture
Metal shields do not provide full fluid sealing
Improper installation can shorten bearing lifespan
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