63803zz
63800 Series Thin Section Bearings
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63803zz Bearing Product Overview & Core Advantages
The 63803zz is a metric single row deep groove ball bearing designed for reliable performance in compact applications. Engineered with shielded construction on both sides, this bearing offers effective protection against contaminant ingress while retaining lubrication. Manufactured to ABEC-1 precision tolerances, it provides smooth operation and consistent performance, making it an ideal choice for applications demanding high rotational speeds and radial load capacity within a constrained design envelope.
63803zz Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Interpretation | Technical Significance |
|---|---|---|
| 63803 | Basic Bearing Number | Denotes a metric, single row deep groove ball bearing with a 17 mm bore, 26 mm OD, and 7 mm width. |
| zz (or 2Z) | Shielded on Both Sides | Indicates the bearing is equipped with non-contact, metallic shields on both sides. This provides superior contamination protection compared to open bearings and is suitable for high-speed operation. |
63803zz Bearing Structural Features & Performance Benefits
- Optimized for Radial Loads: The deep groove raceway and single row design are engineered to efficiently support significant radial dynamic load ratings (502 lbf / 2.23 kN), providing reliable support in high-speed rotating assemblies.
- High-Speed Capability: The combination of a low-friction stainless steel cage, precision-ground chrome steel components, and shielded design allows for a high limiting speed of 29,000 rpm, making it a high-speed bearing solution.
- Enhanced Service Life & Reliability: The shielded (ZZ) construction protects the internal components from dust and debris, extending bearing service life. The standard C0 radial internal clearance ensures predictable performance under normal operating conditions and temperatures.
- Precision Engineering: Manufactured to ABEC-1 tolerance class, this bearing offers tight dimensional control for reduced vibration and smooth running, which is critical for precision applications.
63803zz Bearing Typical Application Areas
- Small Electric Motors: Ideal for spindle and rotor support in miniature DC motors, fans, and blowers.
- Precision Instruments: Used in optical encoders, medical devices, and laboratory equipment where compact size and reliable operation are paramount.
- Office Automation Equipment: Commonly found in printers, scanners, and copiers for paper feed rollers and drum assemblies.
- Power Tools: Suitable for high-speed spindles in small grinders, drills, and other handheld tools.