Top Factory for single row cylindrical roller bearing NF215

Certified quality systems, controlled GCr15 bearing steel processing, P0 to P4 precision grades, and a delivery schedule that buyers can plan around are all things that a top factory for single row cylindrical roller bearing NF215 has. Linyang Auto Bearing Co., Ltd.'s ATLYC brand has been making bearings since 2010. We're certified by ISO 9001 and IATF 16949, and we have six workshops with 120 skilled workers. We have customers in South Korea, the US, Germany, Russia, Iran, and Turkey. We can deliver in 7 business days, and we offer OEM service and free samples. Before you place your order, this guide tells you what to look for.

Understanding the Single Row Cylindrical Roller Bearing NF215

What Is the NF215 Bearing?

With a 75 mm bore, a 130 mm outside diameter, and a 25 mm width, the single row cylindrical roller bearing NF215 is a radial roller bearing. According to ISO 15, these sizes are the right ones. The code shows that the diameter is 2 and the bore is 15. Taking 15 times 5 gives you 75 mm. There is one flange on the outer ring and two on the inner ring. This is shown by the letters NF. The layout of this part moves the shaft in a single axial direction while the bearing handles a lot of radial load. Because the rings can be taken apart, the inner ring and roller set can be mounted separately from the outer ring. This makes gearbox overhauls faster.

NF215 Specifications at a Glance

Our single row cylindrical roller bearing NF215 has core data shown in Table 1. Before you place your order, please check the final drawing with our engineers to make sure it meets your needs for clearance, lubrication, and tolerances.

Tell us right away if your drawing is different on any line so that we can look it over together.

Performance Data and How to Read It

You can't just look at dimensions to describe performance. Engineers should look at both the rotating load rating and the static load rating. The rotating load rating is about fatigue life, and the static load rating is about permanent deformation when the object stops moving, hits something, or moves slowly. It is set by ISO 76 how static ratings should be done. The cage, lubricant, temperature, load, and method of lubrication all affect how fast something can go. The shaft fit, the housing fit, and the thermal expansion must all match the internal clearance. For the rollers to roll instead of sliding, a cylindrical roller bearing also needs a minimum radial load. Request a datasheet with load, speed, clearance, and lubrication data for the single row cylindrical roller bearing NF215 in your duty cycle. Ratings vary by manufacturer.

Materials, Precision, and Quality Checks for NF215 Bearings

GCr15 Steel and Heat Treatment

GCr15 high-carbon chromium bearing steel, which is similar to AISI 52100, is used in our single row cylindrical roller bearing NF215. Vacuum degassing gets rid of dissolved gasses and helps get rid of the inclusions that cause fatigue cracks in steel. The parts are heated to 60–64 HRC after they have been formed. With this range of hardness, the size stays the same even when the load is changed over and over. Precision grinding is used to get the right surface finish on the raceways, and the rollers have a logarithmic shape that spreads out stress at the ends of the rollers. These steps help the tire last longer and make less noise while it's running.

P0 to P4 Precision Grades

The single row cylindrical roller bearing NF215 is available with accuracy levels of P0, P6, P5, and P4. These tolerance classes for radial bearings are set by ISO 492; as you move from P0 to P4, the allowed difference in size and running accuracy gets smaller. P0 is the standard class, and it works with most general machinery, such as many speed reducers and crushers. P6 and P5 are good for running equipment that needs to be smoother and keep the shafts in place. P4 is for applications that need the most accurate running. It costs more to make and check a higher class, so I suggest matching the grade to what is really needed. Let us know what you need, and we'll help you choose a practical grade.

Inspection Checks to Request From Any Supplier

No matter which supplier you pick, make sure that every single row cylindrical roller bearing NF215 lot has been checked and written down. Measurements of the outside diameter and bore, usually with air gages, show that the interference fit on the shaft is correct. The raceways meet the required HRC range, as shown by the hardness tests. Grinding burns and tiny cracks can be found with magnetic particle inspection. How well the bearing works and how much heat it makes can be seen by vibration tests and raceway roughness checks. ISO 9001 and IATF 16949 systems are used by ATLYC. IATF 16949 is the standard for quality management in the automotive industry. Ask us for inspection records that match the order you placed.

Selecting, Installing, and Maintaining the NF215

How to Choose the Right Specification

The full operating profile, including radial and axial loads, speed, temperature, duty cycle, shock, environment, and required life, is the first thing that is looked at. Check the static safety factor if the machine is hit or starts and stops a lot. Also, compare the calculated load to the bearing rating. Cage choice is also important. A machined brass cage works better in high-speed, vibration, shock, or hot conditions, while a pressed steel cage is better for general mechanical use. You should pick precision class, clearance, fits, and lubrication all at the same time, as they all have an effect on each other. In order to get a single row cylindrical roller bearing NF215, please send us your load and speed information. Our engineers will then check the match.

Installation Method

The bearing is protected before it even runs if the mounting is done right. First, look at the markings, size, type of cage, condition of the packaging, shaft, housing, shoulders, and how clean it is. The single row cylindrical roller bearing NF215 has rings that can be taken apart. Put the inner ring and roller set on the shaft and the outer ring inside the housing. Then slowly and in a straight line, bring the two together so that the raceways don't get scratched. Only put force on the ring you are trying to fit. A controlled heater or an induction heater should be used for interference fits, and the rollers, cage, or rings should never be hit. Pick the right amount and consistency of lubricant based on speed, load, and temperature, and slowly work grease-oiled parts into place.

Maintenance and Warning Signs

Issues are found during regular checks, when they are still easy and cheap to fix. Listen for noise, vibration, or temperature that is getting worse, and check the lubricant for contamination. Pitting, spalling, and flange wear are all signs of damage that is getting worse and should lead to an inspection or preventative maintenance. Clean the lubricant and change it at a time that works for your speed and temperature. Smearing on the raceway can happen with a light load, so make sure the bearing always has enough radial load. If a single row cylindrical roller bearing NF215 does break, keep the broken part and write down how it was used. That record helps both teams figure out what went wrong and how to fix it.

NF215 Compared With Other Bearings and Where It Works

NF215 vs. NU215, NJ215, and N215

The edges of these four bearings are about the same size, but the flanges on them change how they guide the shaft. Table 2 shows how they are different.

The NF layout guides the shaft in one direction and lets it move only a little in the other direction. This is helpful when the shafts get hot and expand. If you have a single row cylindrical roller bearing NF215, it shouldn't automatically replace NU215, NJ215, or N215. Before ordering a replacement, check the design of the flange and the way the bearings are set up.

NF215 vs. Deep Groove Ball Bearings

As for point contact, deep groove ball bearings use it. For light to medium loads, they work best because they can run faster and carry loads in both directions. Rolling bearing books, like "Rolling Bearing Analysis" by Harris and Kotzalas, talk about how line contact spreads the load over a bigger area. So, a single row cylindrical roller bearing NF215 has more stiffness and radial capacity for the same size. The downside is that it has limited axial capacity, so plan the axial arrangement with the bearing on the other side. Don't just look at price or brand; compare things like load ratings, speed, clearance, cage, precision, traceability, and warranty as well.

Applications in Industrial Equipment

Large speed reducers, mining equipment, and crushers are the main things that ATLYC says this bearing is used for. Heavy radial loads and shocks are combined in these machines, so radial stiffness and a strong cage are important. It can also be used in industrial gearboxes, centrifugal pumps, and medium-voltage electric motors. The NF215 is usually found at the end of a motor that isn't being driven. It supports the rotor and lets the shaft grow in one direction when it gets hot. To control axial displacement in gearboxes, line it up with the opposing bearing. Pumps need to be sealed and kept dry. A standard single row cylindrical roller bearing NF215 might not work with all machine tool spindles, so they need their own precision and thermal review.

Buying From a Qualified NF215 Factory

How to Buy Step by Step

First, find out if the supplier is a manufacturer, an authorized source, or a distributor. Then look at the ability to produce, the accuracy of the grinding, the control of assembly, the inspection systems, the certifications, and the ability to track each batch. A full quote includes information about the machine's size, clearance, cage, accuracy, load ratings, speed, lubrication, packaging, warranty, pricing by quantity, delivery terms, and more. Find out whether the items are in stock or made to order, and add up the total cost of buying them, which should include shipping and paperwork. For OEM orders, you need to include drawings, operating conditions, annual demand, and standards for quality. For replacements, look at the design of the flange as well as its size. Buyers in the US who want to bring in a single row cylindrical roller bearing NF215 should ask for export documents as soon as possible.

Why Work With ATLYC

In 2010, Luoyang Auto Bearing Co., Ltd. began with a single fully automated deep groove ball bearing workshop. Today, ATLYC has six workshops that make six main types of bearings. They have 120 skilled workers who do production, research and development, quality control, and assembly. Our clients come from South Korea, the US, Germany, Russia, Iran, and Turkey. We are certified by ISO 9001 and IATF 16949. We have an OEM service for this bearing, and we also offer a sample service so engineers can make sure the fit is right before placing large orders. Dimensions stay the same from batch to batch thanks to controlled material, heat treatment, grinding, assembly, and final inspection. This is important for OEM programs that use the same parts over and over and for wholesale distribution.

Purchasing Checklist for Managers and Engineers

A short checklist cuts down on specification mistakes. Make sure the 75 mm bore, 130 mm outside diameter, 25 mm width, NF flange arrangement, load, speed, temperature, lubrication, clearance, cage material, accuracy, and the way the shaft and housing fit together are all correct. Check the conditions for mounting access and maintenance as well. Ask the supplier for a technical datasheet, a dimensional drawing, quality certifications, inspection procedures, an inventory report, an estimate of how long it will take to ship, information on how the goods will be packed, a warranty, and paperwork for export. If your operating conditions are the same as those in published data, you can choose a standard bearing. If your needs for temperature, vibration, contamination, precision, or volume are not met by standard options, you can ask for customization. You can make sure you made the right choice by getting a sample of the single row cylindrical roller bearing NF215.

Conclusion

The single row cylindrical roller bearing NF215 is a radial bearing that measures 75 × 130 × 25 mm. It has two inner-ring flanges and an outer-ring flange that allow the shaft to move in one direction. It also has a strong radial capacity. Its service life depends on more than just its size. The load ratings, speed limits, clearance, cage type, quality of the GCr15 steel, heat treatment, and precision grade are all important. Protect that life with the right choice, careful mounting, clean lubrication, and quick notice of noise, heat, or wear. By comparing NU215, NJ215, N215 and deep groove ball bearings, we can see that the right choice depends on the layout of the flanges and the direction of the load. A good factory shows how valuable it is by having certified quality systems, inspections that are written down, consistent batches, clear quotes, and on-time deliveries.

FAQ

What are the dimensions of the NF215?

What's inside the NF215 is 75 mm wide, and the outside is 130 mm across. Before you place your order, please check the final drawing with our engineers.

Can the NF215 replace NU215, NJ215, or N215?

Not all the time. Because these bearings' flanges are laid out differently, their axial guidance is also different. Check how the bearings are arranged before you order a new one.

Which cage suits the single row cylindrical roller bearing NF215?

For general mechanical use, pressed steel works well. Brass that has been machined can handle high speed, vibration, shock, or high temperatures. Let us know your needs, and we'll suggest one.

What precision grades and delivery time do you offer?

You can get accurate P0, P6, P5, and P4 from us in 7 business days. You can get OEM service and samples.

What details do you need for a quotation?

Send the amount, the specifications, the use, the destination, the packaging, and the delivery instructions. Drawings and conditions of operation make the technical review go faster.

Request a Quote for Single Row Cylindrical Roller Bearing NF215 from ATLYC

OEMs, distributors, and purchasing teams can contact ATLYC if they need a single row cylindrical roller bearing NF215 manufacturer that is certified by ISO 9001 and IATF 16949 and offers an accuracy range of P0 to P4. They can also get samples and delivery in 7 working days. Auto@lyautobearing.com is where you should send your drawings, quantity, and operating conditions. Please go to https://aotezhoucheng.aixdb.cn/ for more information, and our team will put together a technical review and quote.

References

1. ISO 15, Rolling bearings — Radial bearings — Boundary dimensions, general plan, 2017

2. ISO 492, Rolling bearings — Radial bearings — Geometrical product specifications (GPS) and tolerance values, 2014

3. ISO 76, Rolling bearings — Static load ratings, 2006

4. ISO 9001, Quality management systems — Requirements, 2015

5. IATF 16949, Quality management system requirements for automotive production and relevant service parts organizations, 2016

6. Harris, T. A., and Kotzalas, M. N., Rolling Bearing Analysis: Essential Concepts of Bearing Technology, CRC Press, 2006