SKF NX 25 Z needle roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Needle roller bearing
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Description
SKF NX 25 Z 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 NX 25 Z and any equivalents.
The SKF NX Z is a needle roller bearing that combines a needle roller cage, an inner ring and a seal on one side. Its design keeps the outside diameter small, which suits shafts where radial room is tight and radial loads are significant. Typical equipment includes gearboxes, pumps and machine tools.
How to read the code: NX identifies a needle roller bearing with an inner ring and a reduced section height. The trailing Z tells you there is a lateral seal on one side. Examples such as NX 10 Z, NX 12 Z, NX 15 Z, NX 20 Z and NX 25 Z use that number for the shaft diameter or bore size, depending on the standard you are working to. A larger number means a larger bore and greater load capacity. The series comes in different seal and tolerance combinations while keeping the same compact envelope.
You will find this bearing in power transmissions, gear reducers, hydraulic pumps, compressors, textile machinery and automation equipment. It also appears in machine tools and linear motion systems. Where a shaft has limited space but needs rigidity, and where speeds are high with considerable radial load, this type of bearing is a common choice.
When selecting, check the shaft diameter, the radial load and the lubrication conditions. The Z seal keeps contaminants out and lubricant in, which helps in dusty or humid areas. Verify that shaft and housing are aligned so you do not introduce parasitic axial loads. Grease or oil can be used, following the manufacturer's recommendations. During fitting, do not strike the needle roller cage, and make sure the inner ring seats correctly.
Interchangeability needs care. Needle roller bearings with an inner ring and a seal can vary between brands in tolerances and in the shape of the seal. Main dimensions often follow international standards, but do not assume another brand's part number is a direct replacement without checking the specifications. MR supplies SKF and can advise on compatibility with the other brands it carries. Confirm with a specialist before substituting one manufacturer's bearing for another.
To identify an SKF NX Z series needle roller bearing, send the complete part number by WhatsApp along with the quantity and your working conditions, and we will quote it. Our technical team can help with selection and assembly. Ask us about other sizes or variants in the series.
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 Z mean in the NX Z part number?
- The Z means the bearing has a lateral seal on one side. That seal blocks contaminants and helps hold lubricant. Only one side is covered, so the other side stays open.
- Does this bearing require maintenance?
- Sealed needle roller bearings normally arrive lubricated from the factory. With the seal in good condition, frequent maintenance is not needed. In demanding applications, inspect the seal and relubricate according to the working conditions.
- Can I replace a bearing from another brand with this SKF one?
- If dimensions and tolerances match, it may be possible. Not all needle roller bearings interchange directly. Verify the specifications and contact us with the original part number to confirm compatibility.