Self-Aligning Ball Bearings
Self-aligning ball bearings feature two rows of balls, a sphered raceway in the outer ring, and two deep raceway grooves in the inner ring. Available open or sealed, they are insensitive to angular misalignment from shaft deflection.
- Accommodate static and dynamic misalignment
The bearings are self-aligning like spherical roller bearings or CARB bearings. - Excellent high-speed performance
Self-aligning ball bearings generate less friction than any other type of rolling bearing, which enables them to run cooler even at high speeds. - Minimum maintenance
Because of low heat generation, the bearing temperature is lower, leading to extended bearing life and maintenance intervals. - Low friction
Very loose conformity between balls and outer ring keeps friction and frictional heat at low levels. - Excellent light load performance
Self-aligning ball bearings have low minimum load requirements. - Low noise
Self-aligning ball bearings can reduce noise and vibration levels, for example, in fans.
Self-aligning ball bearings are widely used in various industries. Their availability matches their versatility across numerous applications in a wide range of designs, variants, and sizes. Examples of applications include:
- Industrial fans
- Agriculture
- Material handling
- Pulp and paper
Self-Aligning Ball Bearings - Designs and Variants
Sealed Bearings
Sealed bearings are designed to protect the inner components from contaminants such as dust, water, or chemicals. The seals provide additional protection to the rolling elements, ensuring longer service life and reliability. AMIGO sealed bearings are ideal for harsh environments and maintenance-free applications.
Large Self-Aligning Ball Bearings
AMIGO large self-aligning ball bearings are engineered to accommodate misalignment in applications where shaft deflection or mounting inaccuracies occur. These bearings feature two rows of balls and a common concave outer raceway, making them suitable for heavy radial loads in demanding environments.
Bearings with an Extended Inner Ring
AMIGO bearings with an extended inner ring are designed for applications requiring a stronger shaft connection. The extended inner ring provides better support and reduces wear, enhancing performance under radial loads. These bearings are ideal for agricultural, industrial, and conveyor applications.
Self-Aligning Ball Bearings Size Chart
| Designation | d [mm] | D [mm] | B [mm] |
|---|---|---|---|
| 2213 EKTN9 | 65 | 120 | 31 |
| 2213 ETN9 | 65 | 120 | 31 |
| 2313 | 65 | 140 | 46 |
| 2313 K | 65 | 140 | 46 |
| 2313 M | 65 | 140 | 46 |
| 1214 ETN9 | 70 | 125 | 24 |
| 1314 | 70 | 150 | 31 |
| 2214 | 70 | 125 | 31 |
| 2214 E-2RS1TN9 | 70 | 125 | 31 |
| 2314 | 70 | 150 | 51 |
| 2314 M | 70 | 150 | 51 |
| 1215 | 75 | 130 | 25 |
| 1215 K | 75 | 130 | 25 |
| 1315 | 75 | 160 | 37 |
| 1315 K | 75 | 160 | 37 |
| 2215 EKTN9 | 75 | 130 | 31 |
| 2215 ETN9 | 75 | 130 | 31 |
| 2315 | 75 | 160 | 55 |
| 2315 K | 75 | 160 | 55 |
| 2315 KM | 75 | 160 | 55 |
| 2315 M | 75 | 160 | 55 |
| 1216 | 80 | 140 | 26 |
| 1216 K | 80 | 140 | 26 |
| 1316 | 80 | 170 | 39 |
| 1316 K | 80 | 170 | 39 |
| 2216 EKTN9 | 80 | 140 | 33 |
| 2216 ETN9 | 80 | 140 | 33 |
| 2316 | 80 | 170 | 58 |
| 2316 K | 80 | 170 | 58 |
Recommended Reading
Frequently Asked Questions (FAQs)
Q: What applications are self-aligning ball bearings suitable for?
A: These bearings are ideal for applications where shaft misalignment is common, such as in agricultural machinery, conveyor systems, and textile manufacturing. They are widely used in situations requiring durability and reliable performance under variable load conditions.
Q: What are the key features of self-aligning ball bearings?
A: Self-aligning ball bearings have two rows of balls, a common outer raceway, and are capable of adjusting to misalignment. Their design provides low friction, making them suitable for high-speed applications, and they offer long operational life.
Q: How does the self-aligning feature benefit operations?
A: The self-aligning feature compensates for shaft deflections and mounting errors, reducing the need for precision alignment during installation. This ensures smoother operation and less maintenance in the long run.
Q: Can self-aligning ball bearings handle axial and radial loads?
A: Yes, self-aligning ball bearings can handle both radial loads and limited axial loads. Their design ensures smooth rotation while accommodating misalignment without compromising performance.
Q: What materials are used in self-aligning ball bearings?
A: Self-aligning ball bearings are typically made from high-grade steel for durability. Stainless steel versions are available for environments where corrosion resistance is needed, such as in food processing and marine applications.
Q: What are the advantages of using self-aligning ball bearings?
A: The main advantages include their ability to handle misalignment, low friction for high-speed operation, long service life, and reduced maintenance requirements. They also offer smooth performance under varying load conditions.
Q: Are there different types of self-aligning ball bearings?
A: Yes, self-aligning ball bearings come in sealed and open designs. Sealed bearings provide additional protection against contaminants, while open designs allow for easy lubrication and higher-speed capabilities.
Q: What is the performance of self-aligning ball bearings in harsh environments?
A: Self-aligning ball bearings, especially those made from stainless steel or with seals, perform well in harsh environments. They are resistant to contamination and can operate in settings where moisture, dust, and chemicals are present.
Q: How do I get a quote for self-aligning ball bearings?
A: You can request a quote from bearing suppliers or manufacturers by providing the necessary details such as bearing size, load capacity, and material requirements. Many suppliers offer online quotation services for quick and easy inquiries.