RKB NU 2840 cylindrical roller bearing
- Brand
- RKB
- Category
- Bearings
- Subcategory
- Cylindrical roller bearings
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Description
RKB NU 2840 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 NU 2840 and any equivalents.
The RKB NU series cylindrical roller bearing is built for high radial loads and considerable speeds. Its cylindrical rollers and steel cage support precise operation in demanding industrial settings. MR Industrial Accessories supplies this line to customers throughout the United States and Latin America. To get a quote for a specific size, send the part number to our team by WhatsApp or email.
The NU code tells you how the bearing is put together: two ribs on the outer ring, none on the inner ring. That arrangement permits axial displacement between shaft and housing. In designations such as NU 10/500 and NU 10/630, the figures after the slash give the outer diameter in millimeters; the rest of the code identifies the series. If you need the exact part number, our team can confirm it.
Typical uses include gearboxes, machine tools, pumps, fans and mining equipment. The ability to carry heavy radial loads suits gear drives and roller systems, while mills and crushers in the metallurgical and cement industries are also common applications. We can help you match the bearing to your equipment.
When selecting a bearing, review the radial load, rotation speed and operating environment. Check that the shaft and housing are aligned, and choose a fit that prevents deformation. Lubrication should match the temperature and speed, following the manufacturer's instructions. Sealing depends on the level of contamination; in dirty conditions, consider bearings with additional seals or shields.
Cylindrical roller bearings from other brands often carry similar designations. Dimensional interchangeability is generally standardized, but tolerances and internal clearance still need to be verified. If you have a part number from another brand, we can quote the RKB equivalent. Send it by WhatsApp or email and we will reply promptly.
MR Industrial Accessories supplies the RKB NU series. For a particular size, provide the complete part number and we will prepare a quote. We can also advise on lubrication and mounting. Contact us by WhatsApp or email and our team will assist you.
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 NU designation mean in a cylindrical roller bearing?
- NU means the outer ring has two ribs and the inner ring has none. This allows relative axial movement between shaft and housing, making the bearing suitable for pure radial loads where axial freedom is needed.
- How do I choose the right NU bearing for my application?
- Look at the radial load, speed, temperature and environment. Verify alignment and fit. For contaminated conditions, choose variants with seals. If you need help, contact us on WhatsApp with your equipment details and we will advise you.
- Do you have equivalents for other brands?
- Yes, we can quote the RKB equivalent of bearings from other brands. Send the original part number via WhatsApp and we will provide the corresponding reference. Dimensional interchangeability is usually standardized, but we confirm tolerances and clearance.