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Double row angular contact ball bearing NSK 5203AZZ
- Manufacturer Part Number
- 5203AZZ
- Brand
- NSKBrand we market
- Category
- Bearings
- Subcategory
- Double row angular contact ball bearings
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Description
NSK 5203AZZ is a double row angular contact ball bearing reference, within Bearings. Request a quote for 5203AZZ via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
NSK AZZ series double row angular contact ball bearings are components designed to support combined radial and axial loads in both directions. Their two-row ball construction allows higher load capacity than a single row bearing in the same space. They are used in applications requiring rigidity and precision, such as machine tools, pumps and industrial equipment. MR Accesorios Industriales sells this line in Buenos Aires, Argentina.
The AZZ series designation is interpreted as follows: the initial number (for example, 5203, 5302) indicates the size and dimension series; the AZZ suffix indicates sealing or internal clearance characteristics. In the examples 5203AZZ, 5204AZZ, 5207AZZ, 5208AZZ, 5210AZZ, 5211AZZ, 5302AZZ and 5303AZZ, the digits 52 and 53 correspond to double row series with different section. The AZZ suffix usually indicates a specific seal; to confirm the exact meaning, we will send you the technical data sheet when you request a quote.
These bearings are used in industries such as food, chemical, petrochemical and manufacturing. In Argentina, they are commonly found in centrifugal pumps, compressors, industrial fans, machine tools and transmission equipment. Their ability to support axial loads in both directions makes them suitable for spindles and shafts where high rigidity is required. They are also used in applications with moderate speeds and high precision demands.
To select the right bearing, take into account the radial and axial load it must support, the rotation speed and the environmental conditions. The AZZ seal protects against contaminants and retains lubricant, but verify compatibility with the environment. Assembly requires precise alignment and proper lubrication; in a double row bearing, the internal clearance is already defined at the factory, so it is not adjusted. Follow the manufacturer's recommendations for tightening and cleanliness.
Regarding equivalents, double row angular contact bearings from other brands can be interchanged if dimensions and load capacity match. We do not invent part numbers: if you have another brand's part number, we will indicate the compatible alternative. MR Accesorios Industriales sells the NSK brand and can advise you on interchangeability. It is always advisable to verify tolerances and internal clearance before replacing.
To request a quote, send us the exact part number you need on WhatsApp, for example 5203AZZ or 5302AZZ. We will reply shortly with availability and conditions. If you are looking for a variant you do not see, write to us with the model and we will quote it. At MR Accesorios Industriales we have more than 80 years of experience in bearings and power transmission, and we are in Buenos Aires, Argentina, to advise you.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the AZZ suffix mean in these NSK bearings?
- The AZZ suffix indicates a specific sealing or protection characteristic of the series. To know the exact detail, we will send you the technical data sheet when you request a quote. Write to us on WhatsApp with the complete part number.
- How do I choose between the 52 series and the 53 series?
- The 52 and 53 series differ in section and load capacity. To select, consider the radial and axial loads, and the available space. If you send us the shaft dimensions and the application, we will advise you.
- Are they interchangeable with bearings from other brands?
- Yes, if dimensions, load capacity and configuration match. If you have another brand's part number, we will indicate the equivalent. We do not invent part numbers: ask us on WhatsApp and we will help you.

