
China Standard High Quality Original Double Row Self-Aligning Ball Bearing 1222 1222K 110*200*38
A self-aligning ball bearing is a type of bearing equipped with spherical balls between the inner ring and outer ring raceways. The outer ring raceway’s surface curvature is consistent with the bearing center, allowing for self-alignment and automatic adjustment when the shaft and housing are bent. This feature allows the bearing to handle both radial and axial loads in two directions, making it suitable for heavy loads and impact loads.
Product Features:
- Bearing Number: 1203K+H203
- d mm: 17
- D mm: 47
- B mm: 20
- Bearing Number: 1204K+H204
- d mm: 20
- D mm: 47
- B mm: 20
- Bearing Number: 1205K+H205
- d mm: 25
- D mm: 52
- B mm: 20
- Bearing Number: 1206K+H206
- d mm: 30
- D mm: 62
- B mm: 20
- Bearing Number: 1207K+H207
- d mm: 35
- D mm: 72
- B mm: 20
Packaging & Shipping
Our company, ZheJiang Link Bearing Co., Ltd, is a manufacturer and trader specializing in the research, development, and production of bearings. We offer a wide range of high-quality bearings, including deep groove ball bearings, tapered roller bearings, and self-aligning ball bearings. Our products are widely used in various industries and are appreciated for their precision, speed, and low noise.
We pride ourselves on providing excellent customer service and technical assistance. Our streamlined supply chain ensures quick delivery, and we offer both OEM and non-standard bearings to meet our customers’ specific requirements. We also provide after-sales service and technical support, ensuring customer satisfaction.
FAQ
- What is the minimum order quantity for this product?
The minimum order quantity can be negotiated. We strive to meet our customers’ needs, and most orders are in bulk. - What is your latest delivery time?
Most orders will be shipped within 7-15 days of receiving payment. - Does your company offer quality assurance?
Yes, we offer a 1-year quality assurance on our products. - What sets your company’s products apart from others?
Our products are known for their high precision, high speed, and low noise. - What are the advantages of your company’s services compared to others?
We provide 24/7 online support, timely response, and all the necessary documentation for customs clearance and sales. We also offer 100% after-sales service.

Our company also supplies various other industrial products, such as agricultural gearboxes, power output shafts, sprockets, hydraulic couplings, worm gear reducers, racks, roller chains, pulleys, planetary gearboxes, timing pulleys, and bushings. We take pride in offering high-quality products at competitive prices, backed by excellent customer service. We welcome custom orders based on drawings and samples.
Performance Characteristics of Self-Aligning Bearings
Self-aligning bearings are designed to accommodate misalignment between the shaft and housing, which can occur due to shaft deflection, mounting errors or temperature gradients. The main performance characteristics of self-aligning bearings are as follows:
1. Radial Load Capacity
Self-aligning bearings can support both radial and axial loads. Due to their two rows of balls or rollers, they have a higher radial load capacity than single-row bearings.
2. Misalignment Tolerance
Self-aligning bearings can compensate for misalignment up to a certain degree, typically 3 to 4 degrees. This feature makes them suitable for applications with shaft deflection or mounting errors.
3. High Speed Capability
Self-aligning bearings can operate at higher speeds than other types of bearings due to their lower friction and reduced heat generation.
4. Low Friction
Self-aligning bearings have a lower friction than other types of bearings, resulting in reduced wear and longer service life.
Types and Characteristics of Self-Aligning Bearings
Self-aligning bearings are available in several types, including ball bearings, spherical roller bearings, and barrel roller bearings. Each type has its own unique characteristics and advantages.
1. Ball Bearings
Self-aligning ball bearings have two rows of balls and a common sphered raceway in the outer ring. They can accommodate misalignment and axial loads in both directions.
2. Spherical Roller Bearings
Self-aligning spherical roller bearings have two rows of rollers and a common sphered raceway in the outer ring. They can accommodate misalignment and high radial loads.
3. Barrel Roller Bearings
Self-aligning barrel roller bearings have a barrel-shaped rolling element and a raceway in the outer ring. They can accommodate misalignment and high radial loads.
Advantages of Self-Aligning Bearings Made of Different Materials
Self-aligning bearings can be made of different materials, including stainless steel, ceramic, and plastic. Each material has its own advantages.
1. Stainless Steel Bearings
Stainless steel self-aligning bearings are corrosion-resistant and suitable for applications in harsh environments.
2. Ceramic Bearings
Ceramic self-aligning bearings have high wear resistance, low friction, and are suitable for high-speed applications.
3. Plastic Bearings
Plastic self-aligning bearings are lightweight, corrosion-resistant, and suitable for applications in wet or corrosive environments.

Application of Self-Aligning Bearings
Self-aligning bearings are widely used in various fields, including Agricultural Machinery, Conveyor Systems, Electric Motors, Pumps and Compressors, and Textile Machinery. Their ability to accommodate misalignment and high radial loads makes them suitable for these applications.
Future Development Trends and Opportunities of Self-Aligning Bearings
The demand for self-aligning bearings is expected to grow in the coming years due to their advantages and increasing application in various industries. The development of new materials and technologies is also expected to drive the growth of the self-aligning bearing market.
How to Choose a Suitable Self-Aligning Bearing
Choosing a suitable self-aligning bearing requires considering several factors, including:
1. Load Type and Capacity
The type and magnitude of the load determine the size and type of bearing required.
2. Speed Requirements
The operating speed of the bearing affects the selection of bearing type and lubrication.
3. Misalignment Tolerance
The degree of misalignment between the shaft and housing affects the selection of bearing type and size.
4. Operating Conditions
The operating environment, including temperature, humidity, and contamination, affects the selection of bearing material and lubrication.
5. Bearing Material and Cost
The selection of bearing material depends on the application requirements and the cost of the bearing.
Summary
Self-aligning bearings are designed to accommodate misalignment between the shaft and housing, making them suitable for applications with shaft deflection or mounting errors. They are available in several types and materials and are widely used in various fields. Choosing a suitable self-aligning bearing requires considering several factors, including load, speed, misalignment tolerance, operating conditions, bearing material, and cost.
Author: Dream
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