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Deep groove ball bearing NSK DDU
- Manufacturer Part Number
- DDU
- Brand
- NSKBrand we market
- Category
- Bearings
- Subcategory
- Deep groove ball bearings
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Description
NSK DDU is a deep groove ball bearing reference, within Bearings. Request a quote for DDU via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The NSK deep groove ball bearing with DDU suffix is a single row bearing with contact seals on both sides. It is designed to withstand moderate radial and axial loads in both directions, and its sealing retains lubricant and blocks the entry of contaminants. It is used in electric motors, pumps, fans, transmission equipment and general machinery. MR Accesorios Industriales sells it in Buenos Aires, Argentina, and quotes it by WhatsApp.
The designation of the DDU series is read directly on the bearing code: the letters DDU indicate that the bearing has contact seals on both sides. In NSK bearings, the DDU suffix is added to the basic number, for example 6205DDU, and does not modify the main dimensions. These seals are made of rubber and rub against the inner ring, offering an effective barrier against dust, water and particles. If the code includes other letters, it is advisable to consult them to know additional configurations.
In Argentine industry, deep groove ball bearings with DDU sealing are found in electric motors, centrifugal pumps, fans, compressors, conveyor belts and machine tools. They are also used in agricultural, food and packaging equipment, where cleanliness and lubricant retention are critical. Being factory sealed, they are suitable for applications where frequent relubrication is not expected and maintenance is to be reduced.
To select a DDU bearing, take into account the radial and axial load, the rotation speed and the environmental conditions. Contact sealing provides greater protection but generates somewhat more friction than non-contact sealing or a shield. Check that the housing and shaft have the correct tolerances and that assembly is done with suitable tools, without hitting the seals. Lubrication comes from the factory; if you need to relubricate, consult the procedure.
NSK DDU bearings can be interchanged with bearings from other brands that have the same basic number and contact sealing on both sides, such as suffixes 2RS or similar. Interchangeability depends on dimensions and tolerances, not on the brand. If in doubt, send us the code of the original part and we will indicate the compatible equivalent. MR sells NSK and other brands, and can advise you so that the substitution is correct.
To request a quote for an NSK DDU deep groove ball bearing, send the complete code or the main measurements (inner, outer diameter and width) by WhatsApp. At MR Accesorios Industriales we respond shortly with the quote. If you need several units or a specific series, we can also help you. Write to us and we will advise you.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
- Eje o agujero
- 170 mm
Frequently Asked Questions
- What does the DDU suffix mean in an NSK bearing?
- DDU indicates that the bearing has rubber contact seals on both sides. These seals retain lubricant and protect against the entry of dust and moisture, although they generate somewhat more friction than other types of closure.
- How do I request a quote for an NSK DDU bearing?
- Write to us by WhatsApp with the complete bearing code or the main measurements: inner, outer diameter and width. At MR Accesorios Industriales we quote shortly.
- Can I replace a DDU bearing with one from another brand?
- Yes, if the basic number and seal type match. Interchangeability is based on dimensions and tolerances. If you send us the original code, we will indicate the compatible equivalent.

