Description

SKF – 6211-2Z – Single Row Deep Groove Ball Bearing

The SKF 6211-2Z is a premium-quality, single row deep groove ball bearing designed for high performance, durability, and versatility. Engineered by SKF, a global leader in bearing technology, this bearing is ideal for applications requiring high-speed operation, low friction, and reliable load handling. With its dual metal shields and robust construction, the 6211-2Z is a trusted choice across a wide range of industrial and mechanical systems.

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Design and Construction

The SKF 6211-2Z features a single row deep groove design, which allows it to accommodate radial loads and moderate axial loads in both directions. The deep raceway grooves and close conformity between the balls and raceways enable smooth operation and high load-carrying capacity.

This bearing is equipped with two metal shields (2Z)—one on each side—which protect the internal components from dust, dirt, and other contaminants while retaining the lubricant inside. This non-contact shielding ensures minimal friction and heat generation, making it suitable for high-speed applications.

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Key Specifications

• Bore Diameter: 55 mm
• Outer Diameter: 100 mm
• Width: 21 mm
• Basic Dynamic Load Rating: 46.2 kN
• Basic Static Load Rating: 29 kN
• Reference Speed: 14,000 rpm
• Limiting Speed: 7,000 rpm
• Weight: Approximately 0.634 kg
• Sealing: 2Z (Metal shields on both sides)
• Cage Material: Pressed steel
• Internal Clearance: CN (Normal)
• SKF Performance Class: SKF Explorer
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Performance and Benefits

1. High-Speed Capability
   With a reference speed of 14,000 rpm and a limiting speed of 7,000 rpm, the 6211-2Z is optimized for high-speed rotation. The low-friction shield design ensures efficient operation in demanding environments.
2. Low Maintenance
   The metal shields help retain grease and keep contaminants out, reducing the need for frequent relubrication. This makes the bearing ideal for applications where maintenance access is limited.
3. Durability and Reliability
   Manufactured from high-grade bearing steel, the 6211-2Z offers excellent resistance to wear, fatigue, and corrosion. It is part of the SKF Explorer performance class, which means it has been optimized for longer service life and improved performance under challenging conditions.
4. Versatile Load Handling
   The bearing can handle both radial and axial loads, making it suitable for a wide range of applications, from electric motors to industrial gearboxes.
5. Quiet and Smooth Operation
   SKF’s precision engineering ensures low vibration and noise levels, which is essential for applications in HVAC systems, home appliances, and other noise-sensitive environments.

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Applications

The SKF 6211-2Z is widely used in:

• Electric Motors and Generators: Ensures smooth, quiet, and efficient operation.
• Pumps and Compressors: Withstands high-speed rotation and pressure variations.
• Industrial Gearboxes: Handles combined loads and ensures long-term reliability.
• Fans and Blowers: Reduces noise and vibration in HVAC systems.
• Agricultural and Construction Equipment: Offers durability in harsh environments.
• Home Appliances: Provides quiet, maintenance-free performance in washing machines and dryers.

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Installation and Compatibility

The bearing features a cylindrical bore for easy mounting on standard shafts. It is compatible with a wide range of housings and can be used in both horizontal and vertical orientations. The standard CN internal clearance ensures optimal performance in most general-purpose applications.

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Environmental and Safety Compliance

SKF manufactures the 6211-2Z in compliance with RoHS and REACH regulations, ensuring it meets global environmental and safety standards. The production facilities are certified to ISO 9001 and ISO 14001, reflecting SKF’s commitment to quality and sustainability.

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Key Features at a Glance:

• Design: Single row deep groove ball bearing
• Sealing: 2Z – Metal shields on both sides
• Load Handling: Radial and axial loads in both directions
• Speed: High-speed capability up to 14,000 rpm
• Material: High-grade bearing steel with pressed steel cage
• Maintenance: Low-maintenance, grease-retaining design
• Applications: Motors, pumps, gearboxes, fans, and more
• Compliance: Meets international safety and environmental standards

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Conclusion

The SKF 6211-2Z Single Row Deep Groove Ball Bearing is a high-performance, low-maintenance solution for a wide range of mechanical and industrial applications. With its dual metal shields, high-speed capability, and SKF Explorer-class reliability, it offers exceptional value, durability, and performance. Whether you’re designing new equipment or maintaining existing systems, the 6211-2Z is a dependable choice backed by SKF’s legacy of engineering excellence.
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