SKF NNU 4952 BK/SPW33 cylindrical roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Since 1945 · Martínez, Buenos Aires, Argentina
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How to read SKF NNU 4952 BK/SPW33
- NNU 49Series
- Cylindrical roller bearings, NNU 49 series. For the same bore, each series has a different outside diameter and width.
- 52Bore
- 260 mm bore: 52 × 5.
- BK/SPW33Suffix
- SKF suffix: it defines the variant (sealing, cage, internal clearance or other features).
NNU 4952 is the standard (ISO) basic designation: it defines the type, the series and the bore.
Description
SKF NNU 4952 BK/SPW33 is a reference of cylindrical roller bearing, within Bearings. Request a quote for NNU 4952 BK/SPW33 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
SKF NNU series cylindrical roller bearings are components with high radial load capacity, designed to withstand heavy loads and considerable speeds. Their double-row construction and steel cage make them suitable for severe industrial applications, such as rolling mills, gearboxes and machine tools. At MR Accesorios Industriales we supply this line.
The NNU designation identifies double-row cylindrical roller bearings with two inner rings and an outer ring without flanges. The BK suffix indicates a stamped steel cage, while SPW33 refers to a special heat stabilization treatment and a groove for a retaining ring. For example, NNU 4920 BK/SPW33 combines these characteristics to deliver reliable performance under highly demanding conditions.
These bearings are used in industries such as steel, cement, mining and machine tools. In Argentina, they are common in rolling mills, presses, speed reducers and material handling equipment. Their ability to withstand heavy radial loads and their rigidity make them ideal for applications requiring precision and durability.
To select the right bearing, it is essential to consider the radial load, operating speed and environmental conditions. Mounting must ensure precise alignment and adequate lubrication, whether with grease or oil. The BK cage and the SPW33 treatment offer advantages in terms of strength and dimensional stability. It is advisable to verify internal clearance and sealing according to the application.
Regarding equivalences, SKF NNU bearings can be interchanged with products from other brands that follow the same dimensional designation, although tolerance and clearance must be verified. Interchangeability between brands is possible if the technical specifications are respected. Always consult a specialist to ensure compatibility.
To obtain a quote for SKF cylindrical roller bearings, contact MR Accesorios Industriales via WhatsApp. Send the exact product code and our team will reply promptly with the information needed for your application.
Dimensions
- Bore
- 260mm
Frequently Asked Questions
- What does the BK suffix mean on an NNU bearing?
- The BK suffix indicates that the bearing has a stamped steel cage, which provides strength and precise roller guidance. It is common in high-load applications.
- For what applications is the NNU series recommended?
- It is recommended for applications with high radial loads and moderate speeds, such as rolling mills, gearboxes, machine tools and heavy industrial equipment.
- How can I request a quote for these bearings?
- You can send the product code via WhatsApp to MR Accesorios Industriales. Our team will provide a personalized quote and technical advice.