
NSK NAFW 173026 needle roller bearing
- Brand
- NSK
- Category
- Bearings
- Subcategory
- Needle roller bearing
We respond promptly.
Since 1945 · Martínez, Buenos Aires, Argentina
Request your quote via WhatsApp or email, with the quantity you need.
Can't find the exact model? Write to us with the part number or model you're looking for: we'll find it and quote it, even if it's not listed in the catalog.
Description
NSK NAFW 173026 is a reference of needle roller bearing, within Bearings. Request a quote for NAFW 173026 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.
NSK NAFW needle roller bearings combine thin, long cylindrical rollers in a reduced radial section. This type includes part numbers such as NAFW 102220, NAFW 254026 or NAFW 7010060, all from the same series but in different sizes. Each part number has its own dimensions, so it must be indicated in full when ordering.
Needle roller bearings use cylindrical rollers of small diameter and great length. This achieves a high radial load capacity in a very small space, which is useful when the housing has little height. They are used in gearboxes, transmissions, pumps, machine tools and compact mechanisms in general.
In this type, the numbers that follow NAFW are generally read in three groups of two digits. For example, NAFW 102220 corresponds to 10, 22 and 20; NAFW 254026, to 25, 40 and 26. These groups are, in that order, the bore diameter, the outside diameter and the width, expressed in millimeters. In the larger part numbers, such as NAFW 7010060, one group becomes three digits.
Since the dimensions change with each part number, this type does not share bores or widths: some are small and others are considerably large. Before replacing, compare the three dimensions with those of your bearing and with the housing. An incorrect fit reduces service life, because the needle roller bearing has little tolerance for misalignment.
The surface of the shaft or of the raceway on which the needles run must meet the hardness and finish specified by the manufacturer; otherwise it wears quickly. Mount carefully, without striking the cage or the needles, keep everything clean and lubricate according to speed and temperature.
To request a quote, write to us by WhatsApp or email with the full part number and the quantity. We reply promptly, from Buenos Aires, Argentina.
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
- How are the dimensions read in an NAFW part number?
- The digits that follow NAFW are read in three groups: bore diameter, outside diameter and width, in millimeters. For example, NAFW 102220 corresponds to 10, 22 and 20.
- What advantage does a needle roller bearing have?
- It offers high radial load capacity with a very reduced radial section, so it works where height space is limited.
- What do I check on the shaft?
- The surface on which the needles run must have the hardness and finish specified by the manufacturer. If it is worn, the new bearing is damaged quickly.

