61806
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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61806 Bearing Product Overview & Core Advantages
The 61806 is a single row deep groove ball bearing designed for high-precision applications requiring reliable radial load capacity. Its compact design, featuring a 7 mm width and 30 mm bore, makes it an ideal solution for space-constrained assemblies. Manufactured with Chrome Steel rings and balls, coupled with a Stainless Steel cage, this bearing offers excellent durability and consistent performance. Its P6 tolerance class ensures high running accuracy, making it suitable for applications demanding precise rotational movement and high rigidity.
61806 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 6 | Deep Groove Ball Bearing Series |
| 18 | Bore Diameter Code (30 mm) |
| 06 | Size Series (Extra Light, 1 Series) |
| Open (Seal Type) | No seals or shields, allowing for higher speeds and easy re-lubrication. |
| P6 (Tolerance Class) | Indicates higher dimensional and running accuracy than standard (P0) bearings. |
| CN (Radial Clearance) | Standard (Normal) radial internal clearance. |
61806 Bearing Structural Features & Performance Benefits
Optimized for Radial Loads: The deep groove raceway and single row construction are engineered to efficiently support significant radial dynamic load ratings of 922 lbf, making it a robust choice for primary radial force applications.
High-Speed Capability: The lightweight Stainless Steel cage and open design contribute to a high limiting speed of 20,000 rpm, minimizing friction and heat generation for smooth operation.
Precision Engineering: The P6 tolerance class and tight dimensional tolerances on the bore diameter and outside diameter ensure minimal runout and vibration, which is critical for high-precision machinery.
Versatile Material Compatibility: The all-steel construction (Chrome Steel rings/balls, Stainless Steel cage) provides a wide temperature range from -30°C to 120°C and excellent resistance to degradation.
61806 Bearing Typical Application Areas
The 61806 bearing is widely used in applications that demand compact size, high precision, and reliable performance under radial loads. Key industries and equipment include:
- Electric Motors and Generators: For supporting rotor shafts in small to medium-sized units.
- Precision Instruments and Optical Devices: Where low vibration and high running accuracy are paramount.
- Office Automation Equipment: Such as printers, scanners, and copiers.
- Medical Devices: Including small pumps and diagnostic equipment.
- General Machinery: For various gearboxes, spindles, and power transmission systems requiring a compact bearing size.
