
RKB NNF 5012 cylindrical roller bearing
- Brand
- RKB
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Description
RKB NNF 5012 belongs to cylindrical roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for NNF 5012 and any equivalents.
The RKB NNF series is a double-row cylindrical roller bearing built to handle high radial loads at moderate speeds. Its design provides rigidity and load capacity for demanding industrial equipment. MR Industrial Accessories supplies this series to customers across the United States and Latin America. To request a quote, send the part number or dimensions by WhatsApp or email.
Reading the designation helps you match a bearing to the application. The letters NNF indicate a cylindrical roller bearing of this double-row configuration. The numbers that follow, such as NNF 5004, NNF 5005 or NNF 5006, correspond to the size and dimensions under international standards. Larger numbers mean larger dimensions and greater load capacity. The double-row arrangement lets the bearing take radial loads in both directions.
These bearings appear in machine tools, mining equipment, cranes, speed reducers, industrial pumps and food-processing machinery. Their radial load capacity suits environments that call for precision and durability. In metalworking they are found in rolling mills and rolling trains, and in the paper industry in cylinders and press rolls.
Selection depends on the radial load, the rotation speed and the operating conditions. Careful installation with precise alignment avoids additional stresses. Grease or oil lubrication supports service life, and it is worth checking whether the model includes seals for protection against contamination. Our team can assist if you are unsure which option fits.
For interchangeability, RKB NNF bearings follow the same dimensional standards as products from other manufacturers, but it is advisable to verify each maker's technical data. When replacing an existing bearing, provide the code or exact measurements so we can identify a suitable option for your application.
To request a quote, send the code or the measurements you need by WhatsApp or email. We reply promptly and can suggest equivalents or help you choose.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does the NNF designation mean?
- NNF identifies a double-row cylindrical roller bearing. The numbers that follow, such as NNF 5004, indicate size and dimensions according to international standards. The series is known for high radial load capacity and rigidity.
- Where are NNF bearings used?
- They are used in machine tools, mining equipment, cranes, speed reducers, pumps and food-industry machinery, as well as in rolling mills and press cylinders where precision and durability are required.
- How do I request a quote for NNF bearings?
- Send the part number or the measurements you need by WhatsApp or email. We reply promptly with the quote. If you do not have the code, we can help identify it from the dimensions or the application.

