NTN NK9/12T2 needle roller bearing
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Needle roller bearing
- Series
- NK
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Description
NTN NK9/12T2 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 NK9/12T2 and any equivalents.
For tight radial spaces where you still need high load capacity, the NTN NK series needle roller bearing is a single-row radial unit that runs directly on a hardened shaft. Without an inner ring, it keeps the section low and the assembly rigid. Common in transmissions, pumps, compressors and textile machinery, it is quoted by size or part number.
Reading the NK code helps you match a replacement quickly. The letters NK mean a needle roller bearing with no inner ring. After the slash, the first number is the bore in millimeters and the second is the total width. So NK5/10T2 has a 5 mm bore and 10 mm width, while NK8/12T2 has an 8 mm bore and 12 mm width. The T2 suffix identifies a polyamide cage of specific design.
These bearings show up in automotive, metallurgical, textile and food processing equipment. They are often found in gearboxes, water pumps, compressors, machine tools and transmission assemblies. Their low profile lets you shrink the housing without giving up radial capacity. MR Industrial Accessories supplies them for replacement and new projects across the United States and in several Latin American countries.
Selection starts with shaft diameter and length, radial load and lubrication conditions. Because there is no inner ring, the raceway is ground directly on the shaft, so proper hardness and roughness matter. Mounting must be aligned to avoid side forces. Grease or oil works, depending on speed and operating temperature.
NTN NK series bearings interchange with other brands that use the same dimensional nomenclature. For a replacement, confirm bore, outer diameter, width and cage type. If you are unsure, our team can help you find the equivalent. It is always wise to consult a specialist before substituting a bearing.
To get a quote, send the part number or your measurements by WhatsApp or email. We reply promptly and can also advise on lubrication and mounting so your equipment runs reliably.
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 T2 suffix mean in an NK bearing?
- T2 indicates a polyamide cage of specific design. This cage guides the rollers and allows high speeds with low friction. When replacing, verify the cage type matches to maintain performance.
- How do I choose the right NK bearing for my application?
- You need the shaft diameter, available width and radial loads. Also consider speed and lubrication. With that data we can quote the exact reference. If you are not sure, ask us and we will advise you.
- Are NTN NK bearings interchangeable with other brands?
- Yes, as long as the main dimensions and cage type match. The NK series follows international dimensional standards, which makes interchangeability easier. If you have another brand's code, we can indicate the NTN equivalent.