63801zz
63800 Series Thin Section Bearings
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Basic Information
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Performance
Materials
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63801zz Bearing Product Overview & Core Advantages
The 63801zz is a metric single row deep groove ball bearing engineered for high reliability in compact applications. This shielded bearing is designed to primarily accommodate radial loads while also handling moderate axial loads in both directions. Its precision construction to ABEC-1 tolerance ensures smooth, quiet operation, making it an ideal component for applications demanding consistent performance and long service life. The combination of chrome steel rings and balls with a stainless steel cage provides excellent durability and corrosion resistance.
63801zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 63 | Bearing series: Miniature, extra-small cross-section |
| 8 | Bore diameter code: 8 x 5 = 40mm? (Note: This appears inconsistent with the provided 12mm bore. The "63801" designation typically follows a different sizing convention. Based on the provided 12mm bore, this is a miniature bearing.) |
| 01 | Bore diameter: 12 mm (Standardized code for this size class) |
| zz | Shielded on both sides. The "zz" suffix denotes non-contact metal shields that protect the bearing interior from contamination while minimizing friction, contributing to the high limiting speed. |
Note: The "63801" numbering system is specific to miniature bearings and does not follow the standard metric bore calculation. The bore diameter is 12mm as specified.
63801zz Bearing Structural Features & Performance Benefits
- Deep Groove Raceway & High-Capacity Design: The uninterrupted deep groove raceways enable the bearing to handle significant radial loads (432 lbf dynamic, 234 lbf static) and bidirectional axial loads, providing versatile load-carrying capability in a compact bearing size (12x21x7 mm).
- Shielded Protection: The double-shielded (zz) construction effectively seals the bearing against dust and other particulates, enhancing operational reliability and component longevity in challenging environments.
- Optimized for Speed: The lightweight stainless steel cage ensures stable ball guidance and reduces centrifugal forces, enabling a high limiting speed of 36,000 rpm. The C0 radial internal clearance is the standard group, suitable for most common operating conditions.
- Precision Engineering: Manufactured to ABEC-1 precision class tolerances, this bearing provides consistent running accuracy, low noise, and low vibration, which is critical for sensitive applications.
- Material Integrity: Components made from chrome steel (rings, balls) offer high load capacity and wear resistance, while the stainless steel cage provides superior corrosion resistance.
63801zz Bearing Typical Application Areas
The 63801zz is widely used in applications requiring compact size, high speed, and reliable performance. Key industries and equipment include:
- Small Electric Motors: Spindle motors in IT equipment, drones, and precision tools.
- Precision Instruments: Optical encoders, medical devices, and measuring equipment.
- Office Automation: Printers, scanners, and copiers.
- Robotics and Automation: Small robotic joints, guide rollers, and servo mechanisms.
- Consumer Electronics: Cooling fans, small gearboxes, and various miniature drives.
