Material
The bearing's main structure is forged from premium 52100 chromium steel, renowned for its exceptional hardness, wear resistance, and fatigue strength, ensuring long-term durability under continuous operation. The double shields are made of zinc-plated steel, offering robust protection against dust and debris while maintaining compatibility with high-temperature conditions.
Characteristics
1. Metal shield protection: The ZZ shields form a sturdy barrier against large particles and dust, suitable for dry industrial or mechanical settings without significant moisture exposure.
2. High-speed adaptability: Unlike rubber seals, the metal shields generate minimal friction, enabling smooth operation at higher rotational speeds, ideal for equipment requiring rapid motion.
3. Temperature resilience: The steel shields withstand elevated temperatures better than rubber, making it applicable in environments with moderate heat generation.
4. Compact and efficient: Its small size allows seamless integration into space-constrained assemblies, while the precision-machined raceways ensure consistent load distribution and reduced vibration.
Applications
1. Small electric motors: Such as those in model aircraft, miniature blowers, and high-speed spindles, where high rotational efficiency is critical.
2. Precision instruments: Including optical scanners, laser printers, and small-scale measuring devices, benefiting from dust protection and stable rotation.
3. Office machinery: Components like document feeders, plotter rollers, and toner cartridge drives, leveraging its compact design and durability.
4. Hobbyist equipment: Such as 3D printer hotend fans, CNC router spindles, and RC vehicle transmissions, where reliable performance at speed is essential.
| Part Number | 692XZZ |
| Characteristics |
| System of Measurement | Metric |
| Bearing Type | Ball |
| Seal Type | Shielded |
| Inner Ring Type | Standard |
| For Load Direction | Radial |
| Construction | Single Row |
| Ball Qty | 7 |
| Tolerance Class | ABEC1 |
| Dimensions |
| Bore Dia | 2.5 mm |
| Bore Dia Tolerance | -0.008mm to 0 |
| Outer Dia | 7 mm |
| Outer Dia Tolerance | -0.008mm to 0 |
| Width | 3.5 mm |
| Width Tolerance | -0.12mm to 0 |
| Ball Dia | 1.2 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 | 74 lbf |
| Static Radial Load | 23 lbf |
| Max Speed (X1000 rpm) | 63 |
| Temperature Range | -30° to 110 °C |
| Properties |
| Lubrication | Required |
| RoHS | Compliant |
| REACH | Compliant |
| Weight | 0.55 g |
