The 6305-ZZ deep groove ball bearing is a widely used basic component in mechanical transmission systems. With its mature structural design and excellent comprehensive performance, it provides strong support for the stable operation of various mechanical equipment. This bearing can handle both radial loads and certain axial loads, performing exceptionally well in applications requiring operational accuracy and stability.
Applications span multiple industries including motors, water pumps, machine tools, household appliances, and engineering machinery, making it an essential component for ensuring efficient operation of key equipment parts and precise power transmission.
The 6305-ZZ deep groove ball bearing utilizes high-precision steel balls as rolling elements. After precision grinding, these balls feature smooth surfaces and high dimensional accuracy, enabling smooth rolling in the deep groove raceways of the inner and outer rings.
The raceways are optimally designed with proper depth and curvature, creating a reasonable contact area between balls and raceways. This design effectively disperses loads while reducing friction loss, ensuring low noise and vibration levels during operation.
The "ZZ" designation indicates a double-sided metal dust cover sealing structure. These precision-stamped metal covers are tightly installed on both sides of the bearing, effectively blocking dust, impurities, and other foreign objects from entering the bearing interior.
This protection prevents wear and contamination of the balls and raceways, significantly extending bearing service life. The bearing comes pre-filled with high-performance grease that continuously lubricates the balls and raceways under dust cover protection, reducing maintenance costs and workload.
| Dimension Type | Dimension Value (mm) |
|---|---|
| Inner Diameter (d) | 25 |
| Outer Diameter (D) | 62 |
| Width (B) | 17 |
| Weight | Approximately 0.26kg (actual weight may vary slightly due to manufacturing processes and materials) |
While primarily designed for radial loads, the 6305-ZZ deep groove ball bearing also handles certain axial loads effectively. In motor rotor support applications, it stably bears radial electromagnetic forces and axial forces from rotor weight, ensuring stable high-speed rotation and reliable motor operation.
Deep groove ball bearings naturally feature low friction coefficients. The 6305-ZZ model further reduces friction through high-precision processing and special heat treatment of balls and raceways, resulting in less heat generation, lower energy consumption, and suitability for higher speed requirements.
Precision manufacturing ensures accurate fitting of all bearing components. The stable rolling trajectory of balls in raceways effectively reduces vibration and noise. The double-sided dust cover sealing structure not only blocks foreign objects but also enhances bearing structural rigidity, further improving operational stability.
Widely used in various motors including asynchronous and synchronous types. As a rotor support component, it ensures stability during high-speed rotation, reduces vibration and noise, improves operating efficiency and reliability, and extends motor service life.
Plays a key role in impeller shaft support, bearing radial forces from impeller rotation and axial forces from water flow pressure. Ensures stable impeller rotation for efficient pumping operations in both agricultural irrigation and industrial production pumps.
Suitable for auxiliary transmission components such as lead screw supports and worktable transmissions. Meets accuracy and stability requirements, reduces vibration and transmission deviation, ensures position accuracy between tool and workpiece, and improves part processing quality.
Extensively used in washing machine and fan motors. Offers advantages of low noise, long service life, and maintenance-free operation, ensuring quiet and stable appliance performance while improving user experience and reducing maintenance needs.