Application and Maintenance of Miniature Deep Groove Ball Bearings (Taking 608ZZ as an Example)
From: XingMao DATE: 2025/8/7 Hits: 1175
Application and Maintenance of Miniature Deep Groove Ball Bearings (Taking 608ZZ as an Example)
The 608ZZ bearing is a type of deep groove ball bearing. The ‘ZZ’ in its model number indicates that it has dust covers on both sides, which are primarily used to reduce friction, lower noise levels, and extend service life. This bearing is suitable for low- to medium-speed rotation applications and can withstand radial loads and bidirectional axial loads. I...
The 608ZZ bearing is a type of deep groove ball bearing. The ‘ZZ’ in its model number indicates that it has dust covers on both sides, which are primarily used to reduce friction, lower noise levels, and extend service life. This bearing is suitable for low- to medium-speed rotation applications and can withstand radial loads and bidirectional axial loads. It is commonly found in lightweight equipment such as roller skates and camping trailers.
Application Scenarios
1. Sports Equipment: Commonly used in bearing modifications for roller skates and drift boards to enhance smoothness during gliding.
2. Outdoor Gear: Used in rear wheel modifications for campers to reduce operational resistance and extend service life.
3. Small Machinery: Suitable for low-speed rotating components such as fans and small motors.
Maintenance Tips
1. Lubrication Management
When using grease lubrication, the initial grease filling should occupy 1/3 to 1/2 of the housing volume. Subsequent top-ups should be checked regularly and use the same type of grease.
In high-speed scenarios or high-temperature environments, oil bath lubrication or drip lubrication is recommended.
2. Cleaning and Inspection
After disassembly, clean with gasoline or kerosene to avoid direct contact with contaminants on the container bottom that could damage the rolling surfaces.
During inspection, pay attention to wear on the cage, surface scratches on the rolling elements, and changes in clearance. Replace if abnormalities are found.
3. Installation Guidelines
Avoid forcing the bearing onto the shaft shoulder. It is recommended to use the hot mounting method (heating the bearing ring) or special tools for installation.
