Durable and Versatile 1211 ETN9 Self-Aligning Ball Bearing

Self-aligning ball bearing
Self-aligning ball bearings have two rows of balls, a common sphered raceway in the outer ring and two deep uninterrupted raceway grooves in the inner ring. They are insensitive to angular misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection.

    Accommodate static and dynamic misalignment
    Excellent high-speed performance
    Excellent light load performance
    Low friction

Knowledge and introduction of bearings

The 1211 ETN9 Self-Aligning Ball Bearing is an advanced, high-performance bearing designed to provide exceptional reliability and durability in a wide range of demanding industrial applications. Engineered with a self-aligning feature, this bearing is capable of compensating for angular misalignment between the shaft and housing, ensuring smooth operation even when alignment issues occur. Its robust design makes it an excellent solution for applications that experience radial and axial loads, offering high load capacity and improved resistance to wear. Ideal for use in machinery that operates under varying loads, this bearing guarantees long service life, reduced maintenance, and improved overall efficiency.

Key Features:

• Self-Aligning Design: The 1211 ETN9 Self-Aligning Ball Bearing features a spherical outer race and two rows of balls that allow it to self-align with the shaft, even when misalignment occurs. This self-aligning feature compensates for shaft deflection or installation errors, reducing the risk of premature bearing failure due to misalignment. It is especially beneficial in applications where precise alignment is difficult to achieve or where misalignment is common due to thermal expansion or mechanical distortion.

• High Load Capacity: The 1211 ETN9 is designed to handle both radial and axial loads in both directions. Its ability to support heavy radial loads, along with moderate axial loads, makes it highly versatile and ideal for a wide range of applications. The bearing performs exceptionally well under fluctuating load conditions and is often used in high-speed machinery, electric motors, and industrial equipment.

• Durable Chrome Steel Construction: Constructed from high-quality chrome steel (GCr15), the 1211 ETN9 provides excellent wear resistance, strength, and toughness. Chrome steel is known for its superior load-carrying capacity, durability, and resistance to fatigue, making it ideal for heavy-duty and high-speed applications. The robust construction ensures that the bearing can withstand harsh operating conditions and extended service periods, reducing the frequency of replacements and minimizing downtime.

• Steel Cage for Optimal Performance: The bearing is equipped with a steel cage that ensures proper spacing between the balls, reducing friction and minimizing heat generation. This design helps the bearing maintain smooth operation, even at high speeds, while preventing ball-to-ball contact. The steel cage also enhances the bearing's overall performance, providing additional resistance to wear and ensuring long-lasting durability.

• Corrosion-Resistant Materials: The 1211 ETN9 is resistant to corrosion, which makes it suitable for use in environments where moisture or contaminants are present. This corrosion resistance extends the bearing’s service life and ensures reliable performance even in challenging conditions such as those encountered in food processing, marine, and outdoor equipment applications.

• Low Maintenance and High Efficiency: Thanks to its self-aligning feature and robust materials, the 1211 ETN9 requires less maintenance compared to conventional bearings. Its ability to compensate for misalignment reduces the need for frequent adjustments, which minimizes downtime and reduces maintenance costs. The long service life and reduced risk of failure further enhance the overall efficiency of the machinery in which the bearing is used.

Technical Specifications:

• Inner Diameter (d): 55 mm

• Outer Diameter (D): 100 mm

• Width (B): 21 mm

• Dynamic Load Rating (C): 24,500 N

• Static Load Rating (C0): 13,700 N

• Limiting Speed: 9,500 RPM (with oil lubrication)

• Material: Chrome Steel (GCr15)

• Cage Type: Steel cage

• Seals: Open (no seals)

Applications:

The 1211 ETN9 Self-Aligning Ball Bearing is widely used in industries where equipment is prone to misalignment or where the bearing is subjected to both radial and axial loads. Common applications include:

• Electric motors

• Pumps

• Agricultural machinery

• Conveyors

• Textile machinery

• Automotive components

• Machine tools

The self-aligning feature makes it especially effective in applications where shaft misalignment or deflection is unavoidable, such as in high-speed machinery, large rotating equipment, and heavy-duty industrial applications.

Why Choose the 1211 ETN9 Self-Aligning Ball Bearing?

The 1211 ETN9 Self-Aligning Ball Bearing is a reliable and cost-effective solution for applications that demand high performance and minimal maintenance. Its self-aligning design ensures smooth operation even in cases of shaft misalignment, reducing wear and preventing premature bearing failure. With its high load capacity, durable construction, and corrosion-resistant materials, this bearing is built to last and deliver consistent performance in harsh conditions. By choosing the 1211 ETN9, you ensure your machinery runs efficiently with minimal downtime, reducing maintenance costs and improving overall operational reliability.

Whether used for new installations or as a replacement, the 1211 ETN9 offers superior performance, ensuring that your equipment operates smoothly and efficiently over the long term.

For further details on this product please directly contact our sales department under timson@dmsw.com 

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