SKF NKIS 40 needle roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Needle roller bearing
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Description
SKF NKIS 40 belongs to needle 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 NKIS 40 and any equivalents.
The SKF NKIS series is a line of needle roller bearings that includes an inner ring and a steel cage, built for radial duties where mounting space is tight and radial loads are significant. You will find them in machine tools, transmission assemblies and other industrial mechanisms. MR Industrial Accessories LLC supplies this series to customers across the United States and in several Latin American countries.
Reading the NKIS code helps you confirm you are ordering the right item. NK stands for a needle roller bearing that comes with an inner ring; the I points to that inner ring being integrated; the S refers to the steel cage. The digits that follow give the bore diameter. The series is made up of standardized sizes for each bore. Before you buy, check that the part number lines up with your shaft and housing dimensions.
These bearings show up in metalworking, food processing, textile and plastics operations. They are common in gearboxes, pumps, compressors, machine tools and power transmission equipment. Their compact cross section lets them fit where other bearing types will not, while still handling considerable radial load.
Selection comes down to radial load, rotational speed and the surrounding environment. If dust or moisture is present, plan on extra sealing. The lubricant has to suit the speed and temperature of the application. When mounting, keep the shaft and housing properly aligned so you do not introduce unnecessary axial loads. The steel cage contributes robustness and helps with heat dissipation.
Needle roller bearings with an inner ring from other manufacturers can serve as equivalents when the dimensions and load capacity line up. Check tolerances and internal clearance before you commit. The SKF NKIS series is a well-known reference, but other options are available. If you need help identifying a replacement, we can assist.
To request a quote for the SKF NKIS series bearing you need, send the part number by WhatsApp or email. The team at MR Industrial Accessories LLC will get back to you promptly and can suggest equivalents or help you choose the right option for your application.
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 NKIS mean in a needle roller bearing part number?
- NKIS identifies a needle roller bearing that has an inner ring and a steel cage. The N and K indicate needle roller bearing, the I means the inner ring is integrated, and the S stands for the steel cage. The number that follows gives the bore diameter, as in NKIS 20 or NKIS 30.
- How do I select the correct NKIS bearing for my machine?
- Look at the radial load, the speed and the space available. Make sure the bore diameter matches your shaft. If contaminants are a concern, add seals. The lubricant must be compatible with the speed and temperature. If you are unsure, send us the dimensions on WhatsApp and we will advise you.
- Can SKF NKIS bearings be interchanged with other brands?
- Yes, provided the main dimensions and load capacity match. International standards allow interchangeability between manufacturers. Still, verify tolerances and internal clearance. If you need help finding the equivalent, consult us with the original part number.