61908
618 & 619 Series Thin Section Bearings
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Basic Information
Main Dimensions
Performance
Materials
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61908 Bearing Product Overview & Core Advantages
The 61908 is a metric single row deep groove ball bearing designed for exceptional performance in applications demanding high precision and reliability. Engineered to primarily accommodate radial loads, this bearing features an open design that facilitates high-speed operation. Manufactured with P6 tolerance class precision, it ensures minimal running noise and vibration, making it an ideal component for high-accuracy machinery. Its compact cross-section and robust construction provide a reliable, long-lasting solution for various industrial applications.
61908 Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 61908 | Basic designation for a metric single row deep groove ball bearing with a 40mm bore. |
| Open (No Seal/Shield suffix) | The bearing is unsealed, allowing for higher limiting speeds and optimal heat dissipation. Suitable for environments where external sealing is provided. |
| P6 Tolerance Class | Indicates a precision bearing with tighter dimensional and running accuracy tolerances than standard (P0) bearings. |
| CN Radial Internal Clearance | Specifies the standard (normal) radial internal clearance group for general application conditions. |
61908 Bearing Structural Features & Performance Benefits
- High-Speed Capability: The open design and stainless steel cage minimize friction and allow for a high limiting speed of 14,000 rpm, making it a true high-speed bearing.
- Radial Load Capacity: With a dynamic load rating of 3102 lbf and a static load rating of 2248 lbf, it is engineered to handle significant radial loads efficiently.
- Precision Engineering: The P6 tolerance class ensures superior running accuracy, reduced vibration, and consistent performance in precision applications.
- Robust Material Construction: Components made from chrome steel (rings and balls) and a stainless steel cage offer excellent durability, corrosion resistance, and a long operational lifespan.
- Wide Temperature Range: Operates reliably within a temperature range of -30°C to 120°C, accommodating various operational environments.
61908 Bearing Typical Application Areas
This 61908 deep groove ball bearing is widely used in applications requiring high rotational accuracy and speed. Key sectors include:
- Electric Motors and Generators: For supporting shafts and managing radial loads at high speeds.
- Precision Machine Tools: In spindles and auxiliary drives where P6 precision is critical.
- Pumps and Compressors: As a core component for smooth and efficient operation.
- Office Automation Equipment: Such as high-speed printers and scanners.
- Medical and Dental Equipment: Where reliability, low noise, and precision are paramount.
