NSK AN 28 lock nut
- Brand
- NSK
- Category
- Bushings and sleeves
- Subcategory
- Lock nut
- Series
- AN
We reply promptly.
Tell us the quantity you need and request a quote by WhatsApp or email.
Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
SKF and NSK: matching part numbers →NSK and TIMKEN: matching part numbers →
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
NSK AN 28 belongs to lock nut, part of our Bushings and sleeves range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for AN 28 and any equivalents.
The NSK AN series lock nut holds bearings and similar components in place on a shaft. It works with a lock washer that keeps the nut from backing off when the machine vibrates. In industrial bearing mounting, this is a critical detail: the assembly has to stay tight and precise. MR Industrial Accessories LLC supplies this NSK lock nut series to customers in the United States and several Latin American countries.
The code is easy to read once you know the pattern. The letters AN come first, then a two-digit number that sets the size: AN 02, AN 03, AN 04 and AN 05 are examples of different dimensions. That number is not the diameter itself; it is a reference linked to the shaft diameter and to the bearing being secured. The safe way to pick the right nut is to start from the bearing and check the equivalence table. If that is not clear, send us the bearing part number and we will point you to the correct reference.
You will find these nuts in many industrial settings: machine tools, transmission equipment, pumps, fans and conveyors. Maintenance teams in manufacturing plants, metalworking shops and agro-industrial facilities use them regularly, and they also appear in mining and food processing operations where equipment needs dependable assemblies.
Mounting calls for the right lock washer, which engages a groove on the shaft and locks the nut in position. Use a hook wrench or a socket wrench to tighten it. Before assembly, clean the threads and apply a suitable lubricant so adjustment is easier and seizing is less likely. The assembly must be aligned so the bearing does not carry extra stress. If you need guidance, contact us.
NSK AN series lock nuts can be interchanged with other brands that follow the same dimensional standard. For a replacement, check the thread diameter, pitch and external dimensions. If you have a part number from another brand, we can help you find the equivalent. MR quotes the nut you need, whether it is NSK or another brand we supply.
To request a quote for AN series lock nuts, send the exact part number on WhatsApp or by email. If you are unsure which one applies, share the bearing data or the shaft measurements and we will identify the matching reference. Our team replies promptly with the quote and possible alternatives.
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
- How is the AN series different from other lock nut series?
- The AN series has its own dimensions and thread, following a specific standard. Other series, such as KM or KML, differ in their characteristics. The bearing and shaft determine which one fits. Contact us with the part number and we will advise you.
- How do I find the right AN nut number for my bearing?
- The AN number relates to the shaft diameter and the bearing. You can check compatibility tables or ask us. Send the bearing part number and we will tell you the corresponding AN nut.
- Do NSK AN nuts work with bearings from other brands?
- Yes, provided the bearing and shaft have the matching standardized dimensions. AN nuts follow international standards, so they are usually interchangeable between brands. Always confirm thread and diameter measurements.