61805
618 & 619 Series Thin Section Bearings
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61805 Bearing Product Overview & Core Advantages
The 61805 is a metric single row deep groove ball bearing engineered for high-precision applications requiring reliable performance in compact spaces. Its primary advantage lies in its ability to efficiently handle radial loads while offering a high limiting speed. Manufactured with a P6 tolerance class, this bearing ensures exceptional running accuracy and dimensional stability, making it a superior choice for applications demanding high rotational precision and rigidity.
61805 Bearing Model Code Explained, Specifications & Naming Convention
- 6: Indicates the series, typically representing a very thin section, deep groove design.
- 1: Denotes a specific seal/closure type; in this case, Open (no seals or shields).
- 805: Specifies the bore diameter. For metric bearings, this is calculated as 805 / 5 = 25 mm.
- Seal Type: Open - Allows for high-speed operation and is suitable for environments where external sealing is provided.
- Tolerance Class: P6 - A high-precision grade offering tighter dimensional and running accuracy tolerances.
- Radial Internal Clearance: CN - Standard normal clearance, suitable for a wide range of operating conditions.
61805 Bearing Structural Features & Performance Benefits
The design of the 61805 bearing incorporates several features that contribute directly to its performance:
- High Precision & Rigidity: The P6 tolerance class and tight dimensional tolerances on the bore diameter and outside diameter ensure minimal runout and stable operation, providing high system rigidity.
- Optimized for High Speeds: The open design, combined with a lightweight stainless steel cage, minimizes friction and allows for a high limiting speed of 24,000 rpm.
- Robust Load Capacity: With a dynamic load rating of 980 lbf and a static load rating of 585 lbf, it provides reliable performance under significant radial loads.
- Durable Construction: Both rings and balls are made from chrome steel, offering excellent wear resistance and durability, while the stainless steel cage provides corrosion resistance and strength.
- Compact and Lightweight: With a cross-section of just 7 mm in width and a weight of only 0.021 kg, it is ideal for space-constrained and weight-sensitive designs.
61805 Bearing Typical Application Areas
The 61805 single row deep groove ball bearing is ideally suited for high-speed and high-precision applications across various industries, including:
- Precision Electric Motors: Spindle motors for hard disk drives, small fans, and servo motors.
- Office Automation Equipment: High-speed scanners, printers, and copiers.
- Medical Devices: Dental handpieces, small pumps, and laboratory instrumentation.
- Instrumentation and Control Systems: Guidance systems, encoders, and precision measuring devices.
