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7001A DB-Angular contact ball bearings for precision machinery

  • 7001A DB-Angular contact ball bearings for precision machinery
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Product description Technical parameter
Precision angular contact ball bearing, belongs to the deep groove ball bearing deformation structure, suitable for all kinds of precision machinery selection, this series of bearings can bear radial load and axial load at the same time, can work at a higher speed. The larger the contact angle, the higher the axial load carrying capacity. According to the axial load size, contact angle is mainly divided into C-15 degrees, AC-25 degrees, A-30 degrees, B-40 degrees type structure, small friction coefficient, high limit speed, high manufacturing accuracy, can provide high-speed ceramic ball series bearings and sealed series bearings, cage mainly organic processing window brass cage, steel plate stamping cage, glass fiber reinforced nylon cage (nylon), and phenolic Laminated cloth tube cage (rubber wood), also can provide universal pair and any pair combination bearings. Mainly used in: machine tool spindles, high frequency motors, gas turbines, centrifugal separators, small car front wheels, differential pinion shafts, booster pumps, drilling platforms, food machinery, indexing heads, welding machines, low-noise cooling towers, electromechanical equipment, coating equipment, machine tool groove plates, arc welding machines, water pumps, modules, and support seats.

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Ningbo WTOO Machinery Technology Co., Ltd.is China 7001A DB Chrome Angular Contact Ball Bearing suppliers and Wholesale 7001A DB Chrome Angular Contact Ball Bearing factory. Founded in May 2000, is a wholly-owned enterprise, covering an area of 31682 square meters, with a plant area of 61000 square meters, and has 950 employees, including 110 research and development personnel. The production and sales volume of miniature deep groove ball bearings with inner diameter ranging from 3mm to 60mm ranks the first in China and the second in the world.

WTOO has successively won the national manufacturing single champion, the national high-tech enterprise, the post-doctoral workstation of Zhejiang Province, the enterprise technology center of Zhejiang Province, and the brand strategy demonstration enterprise of Zhejiang Province. WTOO pays attention to scientific and technological innovation, constantly introduces scientific and technological talents, cooperates with domestic bearing industry experts and scientific research institutions, and vigorously implements the technical innovation project. In October 2010, it acquired and held two bearing companies in Shanghai, established talent centers, technology research and development centers, and sales centers, and formed a group business model.

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1.Are there specific temperature ranges where Chrome Angular Contact Ball Bearings perform optimally?
Chrome angular contact ball bearings are commonly used in various applications, and their performance can be influenced by temperature conditions. In general, most chrome steel bearings, including angular contact ball bearings, have a broad operating temperature range, but there are optimal ranges for their performance.
Chrome steel bearings typically perform well within a temperature range of approximately -30°C to 120°C (-22°F to 248°F). However, it's essential to consider factors such as lubrication and sealing materials, as they can affect the temperature limits.
Beyond these general temperature ranges, it's advisable to consult the specific manufacturer's guidelines and technical specifications for the angular contact ball bearings you are using. Different manufacturers may have slightly different recommendations based on the specific design, materials, and manufacturing processes used in their bearings.
Extreme temperatures, whether very high or very low, can impact the lubrication properties, material integrity, and overall performance of bearings. Therefore, it's crucial to choose bearings that are suitable for the intended temperature conditions of your application and to follow the manufacturer's recommendations for proper maintenance and lubrication.

2.How does the chrome composition influence the hardness and wear resistance of the bearings?
The composition of chrome steel, commonly used in the manufacture of bearings, significantly influences the hardness and wear resistance of the bearings. Chrome steel is an alloy primarily composed of iron, chromium, and carbon, with small amounts of other elements. The most common type of chrome steel used for bearings is AISI 52100.
Chromium Content: Chromium is a key element that enhances the hardness and wear resistance of the steel. It forms hard carbides within the steel matrix, contributing to its overall toughness. A higher chromium content generally results in increased hardness and wear resistance.
Carbon Content: Carbon is another essential element in chrome steel. It forms carbides with chromium, further contributing to hardness. The carbon content needs to be carefully controlled to achieve the desired balance of hardness and toughness. Too much carbon can make the steel brittle, while too little may reduce hardness.
Heat Treatment: The heat treatment process, including processes like quenching and tempering, plays a crucial role in achieving the desired hardness and wear resistance. Proper heat treatment helps in the formation of the right microstructure, such as a martensitic structure, which contributes to the hardness of the material.
Microstructure: The microstructure of chrome steel is influenced by the alloying elements and the heat treatment process. A fine and uniform microstructure, with well-dispersed carbides, contributes to improved hardness and wear resistance. This microstructure also affects other mechanical properties like strength and fatigue resistance.
the chrome composition of the steel, along with careful heat treatment, influences the formation of carbides and the overall microstructure, which in turn determines the hardness and wear resistance of the bearings. Engineers and manufacturers often tailor the composition and heat treatment processes to meet specific performance requirements for bearings used in various applications.