The 6305 ZZ deep groove ball bearing is a reliable and widely used bearing designed for industrial applications that require smooth operation, low friction, and effective protection against solid contaminants. As a single-row deep groove ball bearing with double metal shields (ZZ), it is ideal for relatively clean environments where higher speed capability and long service life are essential.
The 6305 ZZ bearing is engineered to support high radial loads together with moderate axial loads in both directions, making it a versatile solution for a wide range of industrial and mechanical applications.
Precision Engineering and Shielded Bearing Design
The 6305 ZZ bearing is manufactured with precision-ground inner and outer rings combined with high-quality steel balls to ensure smooth rotation, reduced vibration, and quiet operation. Its deep groove raceway geometry enables uniform load distribution across the rolling elements, minimizing wear, internal stress, and heat generation during continuous operation.
Equipped with double metal shields on both sides, the bearing effectively prevents the entry of dust and solid particles while retaining lubricant inside the bearing. The non-contact shield design allows higher operating speeds compared to sealed bearings, ensuring efficient performance with reduced maintenance requirements.
Technical Specifications of 6305 ZZ Ball Bearing
The 6305 ZZ deep groove ball bearing has an inner diameter of 25 mm, an outer diameter of 62 mm, and a width of 17 mm. With an approximate weight of 0.23 kg, the bearing provides a compact yet robust construction suitable for light to medium-duty industrial applications.
In terms of load capacity, the bearing offers a dynamic load rating of 22.3 kN and a static load rating of 11.3 kN, enabling reliable operation under substantial radial loads while maintaining stable axial load support.
Regarding speed performance, the 6305 ZZ bearing can operate at speeds of up to 10,500 revolutions per minute when grease-lubricated and up to 13,000 revolutions per minute when oil-lubricated. These speed ratings make it suitable for applications requiring consistent performance at moderate to high rotational speeds.
Typical Applications
Thanks to its shielded design, compact dimensions, and reliable performance, the 6305 ZZ deep groove ball bearing is commonly used in a variety of industrial and mechanical applications, including:
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Electric motors and industrial generators
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Gearboxes and transmission systems
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Industrial fans and blowers
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Pumps and compressors
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Conveyor systems and material handling equipment
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General industrial machinery
Key Advantages of 6305 ZZ Bearing
The 6305 ZZ ball bearing offers several important advantages that make it a preferred choice in many industrial environments. These advantages include effective protection against dust and solid contaminants due to double metal shields, smooth and low-friction operation, suitability for higher rotational speeds, reduced maintenance requirements, reliable radial and axial load-carrying capability, and long service life under continuous operating conditions. Its standardized dimensions ensure easy installation and global interchangeability.
Conclusion
The 6305 ZZ deep groove ball bearing is a durable, efficient, and cost-effective solution for applications that demand smooth operation, higher speed capability, and dependable contamination protection. With its precise dimensions, balanced load ratings, and double shielded construction, it delivers consistent performance across a wide range of industrial environments. Whether used in new equipment or as a replacement component, the 6305 ZZ bearing ensures reliable operation and long-term value.