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Double row cylindrical roller bearing with inner ring · SKF NNU 4936 BK/SPW33
Cylindrical roller bearing SKF NNU 4936 BK/SPW33

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Cylindrical roller bearing SKF NNU 4936 BK/SPW33

Manufacturer Part Number
NNU 4936 BK/SPW33
Brand
SKFOfficial brand
Category
Bearings
Subcategory
Cylindrical roller bearings

Other brands in this family

  • FAG
  • NTN
  • TIMKEN

Ask us about alternatives. Equivalence is verified for each reference and application.

SKF

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Description

SKF NNU 4936 BK/SPW33 is a cylindrical roller bearing reference, within Bearings. Request a quote for NNU 4936 BK/SPW33 via WhatsApp or email with the quantity you need; we respond promptly with lead time 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 with the backing of more than 80 years in the industry.

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.

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 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.
Request a quote on WhatsApp