Material
The bearing is crafted from premium chromium steel (52100), a material renowned for its exceptional hardness, wear resistance, and fatigue strength. This ensures reliable performance even under continuous high-speed operation and helps maintain dimensional stability across varying temperature ranges.
Characteristics
1. Metal shield protection: The double zinc-plated metal shields (ZZ) provide effective defense against large dust particles and debris without restricting rotational speed, making it suitable for dry, low-moisture environments.
2. High-speed capability: Compared to rubber-sealed bearings, the low-friction metal shields minimize drag, enabling smoother operation at elevated rotational speeds.
3. Temperature tolerance: The metal shields withstand higher temperatures than rubber seals, allowing use in applications where ambient heat is a factor.
4. Compact and robust: Its thin-section design ensures easy integration into space-limited assemblies, while the sturdy steel construction supports consistent load-bearing.
Applications
1. Small electric motors: Such as those in hobby drones, RC cars, and miniature fans, where high 转速 and minimal friction are crucial.
2. Precision machinery: Including small lathes, 3D printer extruders, and optical equipment stages, benefiting from its stability at speed.
3. Office automation: Components like printer rollers and scanner motors, where dust protection and reliable rotation are needed.
4. Automotive micro-components: For example, dashboard motors and small pumps, leveraging its temperature tolerance and durability.
| Part Number | 682XZZ |
| Characteristics |
| System of Measurement | Metric |
| Bearing Type | Ball |
| Seal Type | Shielded |
| Inner Ring Type | Standard |
| For Load Direction | Radial |
| Construction | Single Row |
| Ball Qty | 8 |
| Tolerance Class | ABEC1 |
| Dimensions |
| Bore Dia | 2.5 mm |
| Bore Dia Tolerance | -0.008mm to 0 |
| Outer Dia | 6 mm |
| Outer Dia Tolerance | -0.008mm to 0 |
| Width | 2.6 mm |
| Width Tolerance | -0.12mm to 0 |
| Ball Dia | 0.8 mm |
| Radial Clearance | 0.005mm to 0.01 mm |
| Radial Clearance Trade No | MC3 |
| Material |
| Ring Material | Chrome Steel |
| Ball Material | Chrome Steel |
| Cage Material | Carbon Steel |
| Shield Material | Carbon Steel |
| Performance |
| Dynamic Radial Load | 40 lbf |
| Static Radial Load | 13 lbf |
| Max Speed (X1000 rpm) | 71 |
| Temperature Range | -30° to 110 °C |
| Properties |
| Lubrication | Required |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 0.35 g |
