SKF NKXR 45 Z needle roller bearing
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Needle roller bearing
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
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Other brands in this category
Ask us about alternatives. Equivalence is verified for each reference and application.
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Description
SKF NKXR 45 Z is a reference of needle roller bearing, within Bearings. Request a quote for NKXR 45 Z via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
The SKF needle roller bearing of the NKXR Z series is a combined bearing that supports axial and radial loads in a single component. It is used in applications where space is limited and high load capacity is required, such as gearboxes, pumps and machine tools. MR Accesorios Industriales carries this SKF line, a brand that MR sells.
The NKXR Z designation reads as follows: NKXR indicates that it is a combined needle roller bearing, with capacity for axial and radial loads; the final Z indicates that it includes a protective washer. The numbers that appear in the examples, such as 15, 17, 20 or 25, correspond to the shaft diameter in millimeters. Thus, an NKXR 20 Z is mounted on a 20 mm shaft. This series is available in several sizes to suit different diameters.
This type of bearing is used in industries such as automotive, metallurgical, food and petrochemical. In Argentina, it is common to find it in gearboxes, oil pumps, compressors, machine tools and transmission equipment. Its compact design allows replacing combinations of radial and axial bearings, simplifying assembly and reducing the space occupied in the housing.
To select the correct bearing, take into account the shaft diameter, the axial and radial loads it must support, and the lubrication and speed conditions. The Z seal protects against particles, but not against liquids; if there is exposure to water or pressurized oil, evaluate other protections. Assembly requires precise alignment and a suitable support surface. Lubrication can be grease or oil, depending on the application, and it is important to follow the manufacturer's recommendations.
As for equivalents, SKF bearings of the NKXR Z series can be interchanged with products from other brands that follow the same designation and dimensions. Always verify tolerances and internal clearance before replacing one bearing with another of a different brand. MR Accesorios Industriales can advise you on interchangeability and source the exact part number you need.
If you are looking for this bearing, send the complete part number by WhatsApp to MR Accesorios Industriales. We will quote it and help you choose the right option for your equipment. We back every sale with technical knowledge and personalized service.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm the dimensions and version against the manufacturer's data sheet.
Frequently Asked Questions
- What does the Z mean in the NKXR Z part number?
- The Z indicates that the bearing includes a protective washer that prevents the entry of particles. It is not a hermetic seal, so it does not protect against liquids. If your application is exposed to water or oil, ask us about alternatives with better sealing.
- How do I choose the correct size of NKXR Z bearing?
- The number in the part number, such as 15, 20 or 25, corresponds to the shaft diameter in millimeters. Measure the shaft and verify the axial and radial loads it will support. If you have doubts, send us your equipment data and we will advise you.
- Is this bearing suitable for high speeds?
- Combined needle roller bearings support moderate speeds, but these depend on lubrication and load. For high revolutions, evaluate other options. Ask us with your application data so we can recommend the best solution.