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Needle roller bearing with inner ring, steel rollers and side washer · SKF NX 12 Z
Needle roller bearing SKF NX 12 Z

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Needle roller bearing SKF NX 12 Z

Manufacturer Part Number
NX 12 Z
Brand
SKFOfficial brand
Category
Bearings
Subcategory
Needle roller bearing

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Description

SKF NX 12 Z is a needle roller bearing reference, within Bearings. Request a quote for NX 12 Z via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.

The SKF NX Z series needle roller bearing is a combined bearing that integrates a needle roller cage with an inner ring and a lateral seal. It is designed to withstand high radial loads in tight spaces, with a minimal outer diameter. It is used in applications where axial and radial space is critical, such as gearboxes, pumps and machine tools. MR Accesorios Industriales carries this series as part of its SKF bearing line.

The NX Z series designation reads as follows: the letters NX identify a needle roller bearing with an inner ring and a reduced section height; the final Z indicates that it has a lateral seal on one side. The numbers appearing in the examples, such as NX 10 Z, NX 12 Z, NX 15 Z, NX 20 Z and NX 25 Z, correspond to the shaft diameter or bore size, depending on the standard. The higher that number, the larger the bore diameter and load capacity. This series is available with different seal and tolerance combinations, but always maintaining the compact geometry.

Typical applications for this type of bearing include power transmissions, gear reducers, hydraulic pumps, compressors, textile machinery and automation equipment. In Argentina, it is found in the automotive industry, assembly lines, the metalworking sector and food and beverage plants. Its ability to run at high speeds and withstand considerable radial loads makes it suitable for shafts where space is limited and rigidity is required. It is also used in machine tools and linear motion equipment.

To correctly select an NX Z series needle roller bearing, take into account the shaft diameter, radial load and lubrication conditions. The Z seal protects against the ingress of contaminants and retains lubricant, making it advisable in dusty or humid environments. Check shaft and housing alignment to avoid parasitic axial loads. Lubrication can be with grease or oil, following the manufacturer's recommendations. During assembly, avoid striking the needle roller cage and make sure the inner ring is properly seated.

Regarding equivalences and interchangeability, needle roller bearings with inner ring and seal from different brands may differ in tolerances and seal shape. Although the main dimensions usually follow international standards, it is not advisable to assume that a part number from another brand is a direct replacement without verifying the specifications. MR Accesorios Industriales carries SKF as an official brand, and can advise you on compatibility with other brands it also distributes. It is always advisable to consult a specialist before substituting one bearing for another from a different manufacturer.

If you need an SKF NX Z series needle roller bearing, at MR Accesorios Industriales we help you identify it. Send us the complete part number via WhatsApp, along with the quantity and working conditions, and we will provide a quote. We have more than 80 years of experience in the industry and a technical team to advise you on selection and assembly. Do not hesitate to contact us about other sizes or variants in the series.

This description provides guidance on the product type. Check the configuration and dimensions of this reference.

Dimensions

Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.

Frequently Asked Questions

What does the Z mean in the NX Z part number?
The letter Z indicates that the bearing has a lateral seal on one side. This seal protects against the ingress of contaminants and helps retain lubricant. It is important to note that it only covers one side, so the other remains open.
Does this bearing require maintenance?
Sealed needle roller bearings usually come lubricated from the factory. If the seal is in good condition, they do not require frequent maintenance. In demanding applications, it is recommended to inspect the seal condition and relubricate according to the working conditions.
Can I replace a bearing from another brand with this SKF one?
In general, if the dimensions and tolerances match, it may be possible. But not all needle roller bearings are directly interchangeable. We recommend verifying the specifications and consulting us with the original part number to confirm compatibility.
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