China Professional Long Life Self-Aligning Ball Bearing bearing air

Product Description


Mainly bear radial load, and can bear small axial load at the same time.
It has self-aligning performance, can work normally when the inclination angle is not large.

Product Description


Self-aligning ball bearings are bearings with steel balls and cage assemblies between the 2 raceways inner ring and spherical raceways outer ring.

Self-aligning ball bearing has 2 structures of cylindrical hole and conical hole. The material of the cage is steel plate, synthetic resin, engineering plastic and so on.

The self-aligning ball bearing can have sealing structure similar to the deep groove ball bearing, but it will affect the self-alignment of the bearings.

Self-aligning ball bearings mainly bear radial load, and can bear small axial load at the same time. It can’t bear pure axial load. Due to the structure, the limit speed of self-aligning ball bearings is relatively low.

The characteristic of self-aligning ball bearing is that the outer ring raceway is spherical.Since the curvature center of the outer ring raceway surface is consistent with the bearing center, it has the self-aligning function, allowing the axis of the inner ring, balls and cage to deflect around the bearing center, which can compensate for the errors caused by the misalignment and the deflection of the shaft and the outer casing, but the relative inclination of the inner and outer rings should not exceed 3 degrees. This type of bearing is mostly used on double support shafts that are prone to bending under load, and in components where the housing seat hole cannot be strictly coaxial.

Main applications:

Metallurgy, rolling mill, mining, petroleum, paper, cement, textile, sugar extraction and other industries and general machinery.

Product Parameters

Bearing No. Dimensions(mm) Weight
  d D B kg
1203 17 40 12 0.076
1204 20 47 14 0.12
1205 25 52 15 0.14
1206 30 62 16 0.23
1207 35 72 17 0.32
1208 40 80 18 0.42
1209 45 85 19 0.47
1210 50 90 20 0.525
1211 55 100 21 0.705
1212 60 110 22 0.9
1213 65 120 23 1.15
1214 70 125 24 1.26
1215 75 130 25 1.36
1216 80 140 26 1.67
1217 85 150 28 2.07
1303 17 47 14 0.13
1304 20 52 15 0.163
1305 25 62 17 0.257
1306 30 72 19 0.387
1307 35 80 21 0.51
1308 40 90 23 0.715
1309 45 100 25 0.957
1310 50 110 27 1.21
1311 55 120 29 1.58
1312 60 130 31 1.96
1313 65 140 33 2.45
1314 70 150 35 2.99
1315 75 160 37 3.56
1316 80 170 39 4.18
1317 85 180 41 4.98
2203 17 40 16 0.09
2204 20 47 18 0.14
2205 25 52 18 0.163
2203 17 40 16 0.09
2204 20 47 18 0.14
2205 25 52 18 0.163
2206 30 62 20 0.26
2207 35 72 23 0.403
2208 40 80 23 0.51
2209 45 85 23 0.55
2210 50 90 23 0.6
2211 55 100 25 0.81
2212 60 110 28 1.09
2213 65 120 31 1.46
2214 70 125 31 1.62
2215 75 130 31 1.62
2216 80 140 33 2.01
2217 85 150 36 2.52
2303 17 47 19 0.158
2304 20 52 21 0.209
2305 25 62 24 0.335
2306 30 72 27 0.5
2307 35 80 31 0.675
2308 40 90 33 0.925
2309 45 100 36 1.23
2310 50 110 40 1.64
2311 55 120 43 2.1
2312 60 130 46 2.6
2313 65 140 48 3.23
2314 70 150 51 4.23
2315 75 160 55 5.13
2316 80 170 58 6.1
2317 85 180 60 7.05

This parameter table is not complete, please contact us for details.

Company Profile

ZheJiang CZPT Machinery Co., Ltd, Xihu (West Lake) Dis. High-precision Bearings Co., Ltd belongs to CZPT group. It is located in Industrial Development Zone of Liao-cheng city, which is bearings manufacturing base in China. We have been specialized in the production of auto parts, bearings and retainers since year 1986.

Our factory covers an area of 120,000 sq.m, with a construction area of 66,000 sq.m. There are more than 600 employees, 50 management personnel, 80 technical engineers and 60 quality inspectors. We are famous manufacturer group for our strict quality control system and hard-working team.

There are more than 40 sets of high-precision mold processing equipment, 150 sets of various CNC lathes, 200 sets of white dynamic grinding machines, 120 sets of stamping equipment, 16 sets of special demagnetization machines, 10 sets of high-pressure spray cleaning machines, 6 sets ultrasonic cleaning machines and 6 automatic bearing grinding lines. They are also equipped with advanced hardness tester, length measuring instrument, sine instrument, spectrometer, infrared carbon and sulfur analyzer, CZPT hardness tester, roughness profiler, electronic tensile testing machine, metallographic microscope, projection coordinate instrument, roundness instrument, ABLT-2 life testing machine, three-coordinate testing machine and so on. We are ready to provide customers with high-quality precision bearing products.

Our company passed ISO9001, ISO/TS16949 and IATF16949 quality management system. Our products are CE / SGS certified. Through introducing world-leading technology and bring together domestic high-tech talents, it ensures our rapid growth and competitive advantages.

Sincerely wish you visit our factory!


Q1: Do you provide samples? Is it free or extra?

Yes, we can provide a small amount of free samples. Do you mind paying the freight?

Q2: Can you accept OEM or non-standard Bearings ?

Any requirement for non-standard roller bearings is easily fulfilled by us due to our engineers’ rich experience.

Q3: What is your latest delivery time?

Most orders will be shipped within 7-15 days of payment  received.

Q4:Does your company have quality assurance?

Yes, for 2 years.

Q5:Which payment method does your company support?

T/T is best, but we can also accept L/C.

Q6:How to contact us quickly?

Please send us an inquiry or message and leave your other contact information, such as phone number,   or account, we will contact you as soon as possible and provide the detailed information.


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Product Name: Self-Aligning Ball Bearing
Cage: Strip Steel Retainer, Polyamide Cage or Brass Cage
Brand: NSK NTN Koyo NACHI Timken THK IKO Asahi Jtekt
Bore: Cylindrical or Tapered
Quality: High Quality; Good Quality
Lubrication: Grease
US$ 2/Piece
1 Piece(Min.Order)

Request Sample



Customized Request

self aligning bearing

What are the eco-friendly or sustainable aspects of self-aligning bearing materials?

Self-aligning bearings can incorporate eco-friendly or sustainable aspects in their material composition. Here’s a detailed explanation:

  • Recyclable Materials:

Many self-aligning bearings are made from materials that are recyclable. Steel, which is commonly used for bearing rings and rolling elements, is highly recyclable and can be processed and reused multiple times without significant loss of properties. By choosing self-aligning bearings made from recyclable materials, the environmental impact associated with the disposal and production of bearings can be reduced.

  • Low Environmental Footprint:

The production of self-aligning bearings involves various manufacturing processes. Manufacturers often strive to optimize these processes to minimize energy consumption, reduce waste generation, and lower greenhouse gas emissions. By improving energy efficiency and reducing environmental footprint during production, self-aligning bearing manufacturers contribute to sustainable practices.

  • Reduced Material Consumption:

The design and development of self-aligning bearings focus on optimizing their performance while minimizing material consumption. Through advanced engineering techniques, including material selection, design optimization, and improved manufacturing processes, manufacturers can reduce the amount of material required to produce self-aligning bearings. This not only helps to conserve natural resources but also reduces the overall weight of the bearing, leading to lower energy consumption during operation.

  • Alternative Materials:

In recent years, there have been advancements in the development of alternative bearing materials that offer improved sustainability characteristics. For example:

  • Ceramic Bearings: Ceramic materials, such as silicon nitride or zirconia, are increasingly used in self-aligning bearings due to their excellent wear resistance, corrosion resistance, and high-temperature capabilities. Ceramic bearings can contribute to sustainability by reducing the need for lubrication, extending maintenance intervals, and minimizing the use of lubricants that may have environmental impacts.
  • Polymer Bearings: Self-aligning bearings made from polymer materials, such as reinforced plastics or engineered polymers, offer advantages such as self-lubrication, resistance to corrosion and chemicals, and reduced weight. Polymer bearings can provide sustainability benefits by eliminating the need for external lubrication, reducing friction and energy consumption, and offering potential for longer service life.
  • Extended Service Life:

Self-aligning bearings with extended service life contribute to sustainability by reducing the frequency of bearing replacements and associated waste generation. Advancements in bearing materials, surface treatments, and lubrication technologies have led to improved durability and longer operating life, resulting in reduced environmental impact and lower maintenance requirements.

It’s important to note that while self-aligning bearing materials can have eco-friendly or sustainable aspects, the overall sustainability of an application or system also depends on other factors, such as energy efficiency, proper maintenance practices, and end-of-life disposal considerations. Therefore, a holistic approach considering the entire lifecycle of the equipment and its components is essential for achieving sustainable practices.

self aligning bearing

Are there specific industries or applications where self-aligning bearings are frequently used?

Self-aligning bearings find widespread use in various industries and applications where misalignment compensation, high load-carrying capacity, and reliability are crucial. Here’s a detailed description of some specific industries and applications where self-aligning bearings are frequently employed:

  • Heavy Machinery and Equipment:

Self-aligning bearings are extensively used in heavy machinery and equipment, such as mining equipment, construction machinery, and material handling systems. These applications often involve high loads, dynamic forces, and operating conditions that can lead to misalignment. Self-aligning bearings help accommodate misalignment caused by factors like vibration, thermal expansion, and shaft deflection, ensuring smooth operation and prolonged service life of the machinery.

  • Paper and Pulp Industry:

In the paper and pulp industry, self-aligning bearings are commonly employed in critical equipment like paper machines, pulp digesters, and drying cylinders. These applications involve high-speed rotating components and heavy loads. Self-aligning bearings can handle misalignment caused by temperature variations, mechanical stresses, and process fluctuations, maintaining the reliability and productivity of the machinery in this demanding industry.

  • Steel and Metal Processing:

Self-aligning bearings are vital in steel and metal processing applications, including rolling mills, continuous casting machines, and metal shredders. These applications involve extreme loads, high temperatures, and harsh operating conditions. Self-aligning bearings help compensate for misalignment caused by thermal expansion, deflection, and heavy loads, ensuring the durability and performance of the equipment in this industry.

  • Conveyor Systems:

Conveyor systems in industries such as mining, manufacturing, and logistics often rely on self-aligning bearings. These bearings accommodate misalignment caused by belt tension, shaft deflection, and uneven loading. Self-aligning bearings help ensure smooth and reliable operation of the conveyor systems, minimizing downtime and optimizing productivity.

  • Printing and Packaging:

In printing and packaging applications, self-aligning bearings are commonly used in printing presses, packaging machines, and label applicators. These applications involve high-speed rotations, varying loads, and precise alignment requirements. Self-aligning bearings help compensate for misalignment caused by machine vibrations and thermal effects, ensuring accurate and efficient operation of the printing and packaging equipment.

  • Automotive Industry:

The automotive industry extensively utilizes self-aligning bearings in various components and systems, including wheel hubs, transmission systems, and suspension systems. These applications encounter dynamic forces, varying loads, and misalignment due to road conditions and vehicle movements. Self-aligning bearings help absorb misalignment and maintain proper alignment between components, contributing to the safety, performance, and longevity of automotive vehicles.

These are just a few examples of industries and applications where self-aligning bearings are frequently used. Other sectors, such as agriculture, energy, marine, and aerospace, also rely on self-aligning bearings to ensure reliable and efficient operation of their equipment and machinery.

self aligning bearing

Can you describe the load-carrying capacity and load ratings of self-aligning bearings?

Self-aligning bearings are designed to carry both radial and axial loads, and their load-carrying capacity is an essential consideration for their proper selection and application. Here’s a detailed description of the load-carrying capacity and load ratings of self-aligning bearings:

  • Radial Load Capacity:

The radial load capacity of a self-aligning bearing refers to its ability to carry loads that act perpendicular to the axis of rotation. It is influenced by factors such as bearing geometry, material properties, and internal design. Self-aligning bearings, particularly spherical roller bearings, are known for their high radial load-carrying capacity. This is due to their construction that includes multiple rows of robust rolling elements and optimized raceway profiles. The larger contact area between the rolling elements and raceways allows for efficient load distribution, enabling the bearing to handle substantial radial loads.

  • Axial Load Capacity:

The axial load capacity of a self-aligning bearing refers to its ability to carry loads that act parallel to the axis of rotation. The axial load-carrying capacity depends on the bearing type and design, as well as the arrangement of rolling elements. Self-aligning thrust roller bearings, for example, are specifically designed to handle significant axial loads. They utilize cylindrical or tapered rolling elements arranged in a specific orientation to withstand axial forces. Self-aligning ball bearings can also carry moderate axial loads in addition to their primary radial load-carrying capacity.

  • Dynamic Load Rating:

The dynamic load rating of a self-aligning bearing is a standardized value that indicates the maximum load that the bearing can sustain for a specified number of rotations or operating hours without experiencing premature fatigue failure. It is expressed in terms of the calculated dynamic equivalent radial or axial load, which takes into account the actual load distribution within the bearing. The dynamic load rating is typically provided by the manufacturer and allows engineers to compare and select bearings based on their expected performance under dynamic operating conditions.

  • Static Load Rating:

The static load rating of a self-aligning bearing represents the maximum load that the bearing can sustain without permanent deformation or excessive stress when the bearing is stationary or subjected to very slow rotations. It is typically higher than the dynamic load rating. The static load rating is an important consideration for applications where the bearing may be subjected to prolonged static or slow-speed conditions, such as in machinery that operates with intermittent or intermittent rotational motion.

It is important to note that the load-carrying capacity and load ratings provided by manufacturers are based on standardized testing methods and assumptions about operating conditions. Actual load capacity can be influenced by factors such as temperature, lubrication, misalignment, and operating speed. Therefore, it is crucial to consider the specific application requirements and consult the manufacturer’s technical data and guidelines when selecting a self-aligning bearing to ensure its suitability and optimal performance.

China Professional Long Life Self-Aligning Ball Bearing   bearing airChina Professional Long Life Self-Aligning Ball Bearing   bearing air
editor by CX 2024-05-10