61803-2Z
618 & 619 Series Thin Section Bearings
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Basic Information
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Performance
Materials
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61803-2Z Bearing Product Overview & Core Advantages
The 61803-2Z is a metric single row deep groove ball bearing designed for exceptional performance in compact spaces. This shielded bearing offers high reliability and is pre-lubricated with grease for long-term operation. Its key advantage lies in its ability to handle primarily radial loads efficiently while also accommodating moderate axial loads in both directions. Manufactured to P6 tolerance class, it ensures high running accuracy, making it an ideal choice for applications demanding precision, compact design, and low maintenance.
Model Code Breakdown
| Code Segment | Technical Meaning |
|---|---|
| 61803 | Standard series designation for a metric, single row deep groove ball bearing with a 17mm bore. |
| 2Z | Indicates the bearing is shielded on both sides. These non-contact steel shields protect the internal components from contamination while minimizing friction and allowing for high limiting speeds. |
61803-2Z Bearing Structural Features & Performance Benefits
- High Precision & Rigidity: Built to P6 tolerance class with a CN radial internal clearance, this bearing provides precise running accuracy and stable operation under load, contributing to overall system rigidity.
- Optimized Load Capacity: The deep groove raceway and high-quality chrome steel construction enable efficient handling of radial dynamic loads up to 456 lbf and static loads up to 286 lbf.
- High-Speed Capability: The combination of a low-friction stainless steel cage and non-contact 2Z shields allows for a high limiting speed of 28,000 rpm.
- Maintenance-Free Operation: The integral shields effectively retain the factory-applied grease lubrication and exclude contaminants, enabling long service life without re-lubrication within its specified temperature range of -30°C to 120°C.
61803-2Z Bearing Typical Application Areas
- Small Electric Motors and Gearboxes
- Precision Instruments and Medical Devices
- Office Automation Equipment (e.g., Printers, Scanners)
- Computer Cooling Fans and Spindles
- Various Low-Torque, High-Speed Drives