Description

SKF – 6204-Z – Single Row Deep Groove Ball Bearing

 

The SKF 6204-Z is a premium-quality, single row deep groove ball bearing engineered for high performance, durability, and versatility. Designed and manufactured by SKF, a global leader in bearing technology, this bearing is ideal for a wide range of industrial and mechanical applications where reliability and efficiency are paramount.

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Design and Construction

The 6204-Z features a single row deep groove design, which is the most widely used bearing configuration due to its simplicity and effectiveness. It consists of:

• Inner and outer rings made from high-grade bearing steel
• Steel balls precisely spaced by a sheet metal cage
• A non-contact metal shield (Z) on one side

This shield helps protect the bearing from contaminants while retaining the lubricant, ensuring smooth and efficient operation over extended periods.

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Key Specifications

• Bore Diameter: 20 mm
• Outer Diameter: 47 mm
• Width: 14 mm
• Dynamic Load Rating: 13,500 N
• Static Load Rating: 6,550 N
• Limiting Speed: 17,000 rpm
• Reference Speed: 32,000 rpm
• Weight: Approximately 0.103 kg
• Shield Type: Z (single metal shield on one side)
• Cage Material: Sheet steel
• Clearance: CN (normal) or C3 (optional for higher thermal expansion)

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Performance Features

1. High-Speed Capability
   The 6204-Z is optimized for high-speed applications, with a limiting speed of up to 17,000 rpm. Its low-friction design ensures minimal heat generation and energy loss.
2. Single Shield Protection
   The Z-type shield on one side provides effective protection against dust and debris while allowing for open-side lubrication or inspection. This makes it suitable for applications where one side is exposed and the other is enclosed.
3. Versatile Load Handling
   This bearing can accommodate both radial loads and moderate axial loads in both directions, making it suitable for a wide variety of mechanical systems.
4. Durability and Longevity
   Constructed from high-quality bearing steel, the 6204-Z offers excellent resistance to wear, fatigue, and corrosion, ensuring a long service life even under demanding conditions.
5. Low Maintenance
   With its shielded design and pre-lubricated interior, the bearing requires minimal maintenance, reducing downtime and operational costs.

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Applications

The SKF 6204-Z is widely used across multiple industries due to its adaptability and robust performance. Common applications include:

• Electric Motors and Generators
• Automotive Components (e.g., alternators, wheels)
• Pumps and Compressors
• Industrial Fans and Blowers
• Conveyor Systems
• Agricultural Machinery
• Household Appliances
• Machine Tools

Its ability to perform reliably in both high-speed and moderate-load environments makes it a go-to solution for engineers and maintenance professionals.

Environmental and Operational Considerations

The bearing operates effectively in a wide temperature range, typically from -30°C to +150°C, making it suitable for both indoor and outdoor applications. The shielded side helps prevent ingress of moisture and contaminants, which is particularly beneficial in dusty or humid environments.

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Advantages of SKF Bearings

SKF is known for its innovation, precision, and commitment to quality. The 6204-Z is part of the SKF Explorer performance class, which means it has been optimized for:

• Longer service life
• Reduced friction
• Improved performance under high loads and speeds

SKF’s advanced manufacturing processes and stringent quality control ensure that each bearing meets or exceeds global standards.

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Environmental and Operational Considerations

The bearing operates effectively in a wide temperature range, typically from -30°C to +150°C, making it suitable for both indoor and outdoor applications. The shielded side helps prevent ingress of moisture and contaminants, which is particularly beneficial in dusty or humid environments.

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Conclusion

The SKF 6204-Z Single Row Deep Groove Ball Bearing is a high-performance, reliable, and cost-effective solution for a wide range of mechanical and industrial applications. Its robust construction, high-speed capability, and low-maintenance design make it an excellent choice for engineers and technicians seeking dependable performance and long service life.

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