61803-2RZ
618 & 619 Series Thin Section Bearings
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Basic Information
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Performance
Materials
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61803-2RZ Bearing Product Overview & Core Advantages
The 61803-2RZ is a metric single row deep groove ball bearing designed for high-performance applications requiring compact design and reliable operation. Its sealed construction (2RZ) and P6 tolerance class make it an excellent choice for applications demanding precision, moderate speeds, and protection from contamination. This bearing is engineered to handle primarily radial loads efficiently while offering robust performance within its specified temperature range. Its compact cross-section (5 mm width) and low weight make it ideal for space-constrained assemblies.
61803-2RZ Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| 61803 | Basic Bearing Series & Size | Denotes a metric, single row deep groove ball bearing with a 17 mm bore, 26 mm OD, and 5 mm width. |
| -2RZ | Sealing Type | Indicates the bearing is fitted with non-contact rubber seals (RZ) on both sides. This provides effective protection against dust and moisture while maintaining lower friction and a higher limiting speed compared to contact seals. |
61803-2RZ Bearing Structural Features & Performance Benefits
Optimized Load Capacity: The single row deep groove raceway geometry is precision-engineered to carry significant radial loads (456 lbf dynamic, 286 lbf static).
High-Precision Operation: Manufactured to P6 tolerance class, this bearing ensures minimal running vibration and precise rotational accuracy, which is critical for sensitive mechanical systems.
Effective Contamination Protection: The 2RZ non-contact seals shield the internal components from contaminants, significantly extending bearing service life and reliability in challenging environments.
Robust Material Construction: Components made from chrome steel (rings and balls) and a stainless steel cage provide high strength, durability, and good corrosion resistance.
Ready-to-Install & Low Maintenance: The bearing comes pre-lubricated with grease and is sealed for life, making it a maintenance-free solution that simplifies assembly and reduces long-term upkeep.
61803-2RZ Bearing Typical Application Areas
The 61803-2RZ is suited for a wide range of compact, precision-driven applications, including:
- Small Electric Motors (e.g., in fans, pumps, and power tools)
- Precision Instruments and Medical Devices
- Office Automation Equipment (printers, scanners)
- Light-duty Gearboxes and Drive Mechanisms
- Various Industrial Machinery requiring compact, sealed ball bearings
