Have you ever think how massive automobile transmission systems, industrial machines, and high-end conveyor belts operate so smoothly? The reason behind their success is cylindrical roller bearings. But what are they? They are basically small bearings that are designed to handle radial loads and reduce friction to a considerably low level.
Here, we will explain the pros and cons of cylindrical roller bearings, their applications, and how they differ from spherical roller bearings. You will also learn how they work and where to use them appropriately.
What is a Cylindrical Roller Bearing?
A cylindrical roller bearing is a small mechanical component that helps two adjacent moving parts to rotate without hindrance. But how does it do that? By tolerating heavy radial loads. It is not a single-unit component but is composed of certain tiny elements. Their rolling elements are cylinder shaped rotate inside an inner and outer ring. This typical movement reduces friction between the two mechanical parts. This design not only enables the cylindrical roller bearings to handle radial loads but also increases efficiency at higher speeds.
There are different types of cylindrical roller bearings based on configuration. These types are single row and double row cylindrical roller bearings. Some of these bearings have additional features based on a specific need, such as the presence of ribs and cages to boost performance further.
Cylindrical roller bearings are highly versatile and can be used in multiple applications, including electric motors, machine tools, transmission systems, gearboxes, and electronics.
What are the Types of Cylindrical Roller Bearing?
As mentioned, there are two main types of cylindrical roller bearings, which are single-row and double-row cylindrical roller bearings. Besides these, there is a third type also, known as full complement cylindrical roller bearing.
The following are the details of these types:
1. Single-Row Cylindrical Roller Bearing
These are the most frequently used cylindrical roller bearings. These bearings are manufactured to handle higher radial loads and can perform quite well at higher speeds. These cylindrical bearings enable axial disposition in both directions. This makes them highly suitable for applications where the shaft is expanded and contracted very frequently.
Some easily available single-row cylindrical roller bearings are:
NU type
The outer rings of these bearings have fixed ribs and the inner ring is smooth. This configuration allows axial disposition to take place relative to housing.
NJ type
Their outer rings have two fixed ribs, whereas, one is fixed on the inner one. This unique design allow these bearings to handle radial loads only in one direction.
N-type
It is the opposite of NU-type cylindrical roller bearings since they have two fixed ribs on the inner rings instead of the outer one.
NUP type
This cylindrical roller bearing type has two ribs on the inner and outer rings. The difference lies in the fact that the inner ring has one fixed and one loose rib, whereas, outer ring has both fixed ribs.
NF type
It is somehow similar to N type with an inner ring having two fixed ribs but its outer ring also has one fixed rib.
2. Double-Row Cylindrical Roller Bearing
As the name indicates, these bearings have two sets of cylindrical rollers. It enables them to tolerate higher radial load capacity and offer higher rigidity value compared to single-row cylindrical roller bearings. They have applications in gearboxes and machine tool spindles as they need greater radial stiffness.
The following are some configurations of these bearings:
NN type
This type has two rollers’ rows and three fixed ribs on the bearing’s inner ring, whereas, the outer ring is smooth. It allows greater rigidity and load carrying capacity.
NNU type
It is entirely opposite to the NN type. Instead of three fixed ribs and two rows of rollers on the inner ring, this one has them on the outer ring. Their inner ring is smooth.
3. Full-Complement Cylindrical Roller Bearings
They are not similar to the standard two types of cylindrical roller bearings. They do not have a cage. This leads to a maximum number of rollers. This specification offers greater load capacity. However, they function at low speeds instead of high. They do so because the number of rollers are more, which means the friction between them is also increased.
The two subtypes of this bearing type are:
Single-row bearings
They have a higher number of rollers, allowing for greater radial load-carrying capacity, but work at considerably low speed.
Double-row bearings
Similar to the single-row type, they have maximum rollers but are arranged in two rows instead of one. Their attributes are the same as single-row ones, but they offer more load-carrying capacity than them.
What are the Pros and Cons of Cylindrical Roller Bearings?
So, as mentioned before, cylindrical roller bearings are vital components of different mechanical systems and have versatile uses. While they offer dozens of pros, there are some cons or limitations of cylindrical roller bearings. Some of the pros and cons of these roller bearings are:
Pros of Cylindrical Roller Bearings
| Pros | Description |
| Carry a high radial load | These bearings handle high radial loads, which makes them perfect for heavy-duty applications. |
| Suitable for higher speeds | Without compromising the stability, these bearings perform optimally under higher speed applications. |
| Higher stiffness | Since they have a unique design, it enables the bearings to offer high durability. It is particularly good for precision shaft positioning. |
| Prolonged service life | If well-managed and maintained, cylindrical roller bearings provide prolonged service life. It reduces downtime and replacement costs. |
| Design versatility | There are different configurations like single and double row bearings. You can use them for your specific application needs. |
Cons of Cylindrical Roller Bearings
| Cons | Description |
| Limited for axial loads | They are primarily designed for radial load capacity, which limits their usage for axial loads. You need to use an additional bearing to support axial loads. |
| Sensitive to misalignments | These bearings are sensitive to minor misalignments between the housing and shaft. It causes wear and tear, reducing service life. |
| Housing structure complexity | The unique structure can be made more complex for some applications, which is a bit costly to manufacture and design. |
| Loud noise | As compared to other bearing types, cylindrical roller bearings produce loud noise, which can be a bit annoying. |
| Cost consideration | Their design and material are more expensive than the rest of the bearing types. |
What is the Difference Between Spherical Roller Bearings and Cylindrical Roller Bearings?
There are multiple types of roller bearings. The two important are cylindrical and spherical roller bearings. Both of them handle loads but have differences in their design, functions, load-carrying abilities, and applications.
Below is a comparison table between spherical and cylindrical roller bearings:
| Feature | Spherical Roller Bearings | Cylindrical Roller Bearings |
| Shape of roller | Barrel shape | Cylindrical shape |
| Load capacity | Handles both axial and radial loads | Mainly used for radial load capacity |
| Friction level | Higher friction level | Lower level |
| Misalignemnt tolerance | Self-aligning with higher tolerance | Sensitive to misalignments |
| Axial load handling | Yes, can handle axial load | No, very limited usage for axial load handling |
| Speed performance | Moderate because of high friction | Higher because of a lower friction level |
| Applications | Gearboxes and heavy machinery | Tools of machines and electric motors |
Cylindrical Roller Bearing Application
Cylindrical roller bearings have a wide range of applications and are used in industries with a high demand for radial load-carrying capacity, higher efficiency, and greater durability. They can handle heavy radial loads even at higher speeds. It makes them preferable for different mechanical systems. Some important applications of cylindrical roller bearings are:
Automotive Industry
The first is automotive industry. They are commonly used in transmission systems, wheel hubs, and differentials to cater to heavy radial loads to maintain smooth movement of moving parts.
Electric Motors and Generators
These bearings enhance the longevity and efficiency of electric motors and generators by reducing friction and the generation of heat.
Industrial Gearbox
Cylindrical roller bearings are quite important to decrease friction and handle high-speed applications in different gear-driven machinery and systems.
Steel and Paper Mills
Such bearings also have applications in this industry as they can tolerate extreme loads and harsh conditions to make sure they continuously operate without hindrance.
Machine Tools
They are also used in machine tools where they offer precision and higher load carrying capabilities for rotary mechanisms and spindles.
Railway and Aerospace
You can see these bearings used in aircraft engines and train axles to provide higher speed performance and reliability in high-stress conditions.
Cylindrical Roller Bearing Size Chart
| Bearing | Boundary dimensions | Basic load Rationgs | Limiting speeds | Mass | ||||||
| No. | mm | KN | RPM | |||||||
| d | D | B | rmin | r1min | Dynamic Cr | Static Cor | Grease | Oil | KG | |
| NUP2203ETN1 | 17 | 40 | 16 | 0.6 | 0.3 | 21.5 | 13.6 | 14000 | 18000 | 0.097 |
| N204E | 20 | 47 | 14 | 1 | 0.6 | 25.1 | 22 | 13000 | 16000 | 0.114 |
| NF204E | 20 | 47 | 14 | 1 | 0.6 | 25.1 | 22 | 13000 | 16000 | – |
| NU204E | 20 | 47 | 14 | 1 | 0.6 | 25.1 | 22 | 13000 | 16000 | – |
| NJ204E | 20 | 47 | 14 | 1 | 0.6 | 25.1 | 22 | 13000 | 16000 | – |
| NUP204E | 20 | 47 | 14 | 1 | 0.6 | 25.1 | 22 | 13000 | 16000 | – |
| N2204E | 20 | 47 | 18 | 1 | 0.6 | 29.7 | 27.5 | 13000 | 16000 | 0.145 |
| NF2204E | 20 | 47 | 18 | 1 | 0.6 | 29.7 | 27.5 | 13000 | 16000 | – |
| NU2204E | 20 | 47 | 18 | 1 | 0.6 | 29.7 | 27.5 | 13000 | 16000 | – |
| NJ2204E | 20 | 47 | 18 | 1 | 0.6 | 29.7 | 27.5 | 13000 | 16000 | – |
| NUP2204E | 20 | 47 | 18 | 1 | 0.6 | 29.7 | 27.5 | 13000 | 16000 | – |
| N304E | 20 | 52 | 15 | 1.1 | 0.6 | 30.8 | 26 | 12000 | 15000 | 0.152 |
| NF304E | 20 | 52 | 15 | 1.1 | 0.6 | 30.8 | 26 | 12000 | 15000 | – |
| NU304E | 20 | 52 | 15 | 1.1 | 0.6 | 30.8 | 26 | 12000 | 15000 | – |
| NJ304E | 20 | 52 | 15 | 1.1 | 0.6 | 30.8 | 26 | 12000 | 15000 | – |
| NUp304E | 20 | 52 | 15 | 1.1 | 0.6 | 30.8 | 26 | 12000 | 15000 | – |
| N2304E | 20 | 52 | 21 | 1.1 | 0.6 | 41.3 | 38 | 11000 | 14000 | 0.212 |
| NF2304E | 20 | 52 | 21 | 1.1 | 0.6 | 41.3 | 38 | 11000 | 14000 | – |
| NU2304E | 20 | 52 | 21 | 1.1 | 0.6 | 41.3 | 38 | 11000 | 14000 | – |
| NJ2304E | 20 | 52 | 21 | 1.1 | 0.6 | 41.3 | 38 | 11000 | 14000 | – |
| NUP2304E | 20 | 52 | 21 | 1.1 | 0.6 | 41.3 | 38 | 11000 | 14000 | – |
| N205ETN1 | 25 | 52 | 15 | 1 | 0.6 | 28.6 | 27 | 11000 | 14000 | 0.136 |
| NF205ETN1 | 25 | 52 | 15 | 1 | 0.6 | 28.6 | 27 | 11000 | 14000 | – |
| NU205ETN1 | 25 | 52 | 15 | 1 | 0.6 | 28.6 | 27 | 11000 | 14000 | – |
| NJ205ETN1 | 25 | 52 | 15 | 1 | 0.6 | 28.6 | 27 | 11000 | 14000 | – |
| NUP205ETN1 | 25 | 52 | 15 | 1 | 0.6 | 28.6 | 27 | 11000 | 14000 | – |
| NJ205 | 25 | 52 | 15 | 1 | 0.6 | 27.1 | 25 | 11000 | 14000 | 0.137 |
| N2205E | 25 | 52 | 18 | 1 | 0.6 | 34.1 | 34 | 11000 | 14000 | 0.163 |
| NF2205E | 25 | 52 | 18 | 1 | 0.6 | 34.1 | 34 | 11000 | 14000 | – |
| NU2205E | 25 | 52 | 18 | 1 | 0.6 | 34.1 | 34 | 11000 | 14000 | – |
| NJ2205E | 25 | 52 | 18 | 1 | 0.6 | 34.1 | 34 | 11000 | 14000 | – |
| NUP2205E | 25 | 52 | 18 | 1 | 0.6 | 34.1 | 34 | 11000 | 14000 | – |
| N305ETN1 | 25 | 62 | 17 | 1.1 | 1.1 | 40.2 | 36.5 | 9500 | 12000 | 0.246 |
| NF305ETN1 | 25 | 62 | 17 | 1.1 | 1.1 | 40.2 | 36.5 | 9500 | 12000 | – |
| NU305 | 25 | 62 | 17 | 1.1 | 1.1 | 26.6 | 23.5 | 9500 | 12000 | 0.25 |
| NU305ETN1 | 25 | 62 | 17 | 1.1 | 1.1 | 40.2 | 36.5 | 9500 | 12000 | – |
| NJ305ETN1 | 25 | 62 | 17 | 1.1 | 1.1 | 40.2 | 36.56 | 9500 | 12000 | – |
| NJ305 | 25 | 62 | 17 | 1.1 | 1.1 | 26.6 | 23.5 | 9500 | 12000 | – |
| NUP305ETN1 | 25 | 62 | 17 | 1.1 | 1.1 | 40.2 | 36.5 | 9500 | 12000 | – |
| N305 | 25 | 62 | 17 | 1.1 | 1.1 | 26.6 | 23.5 | 9500 | 12000 | 0.24 |
| NF305 | 25 | 62 | 17 | 1.1 | 1.1 | 26.6 | 23.5 | 9500 | 12000 | – |
| N2305E | 25 | 62 | 24 | 1.1 | 1.1 | 56.1 | 55 | 9000 | 11000 | 0.347 |
| NF2305E | 25 | 62 | 24 | 1.1 | 1.1 | 56.1 | 55 | 9000 | 11000 | – |
| NU2305E | 25 | 62 | 24 | 1.1 | 1.1 | 56.1 | 55 | 9000 | 11000 | – |
| NJ2305E | 25 | 62 | 24 | 1.1 | 1.1 | 56.1 | 55 | 9000 | 11000 | – |
| NUP2305E | 25 | 62 | 24 | 1.1 | 1.1 | 56.1 | 55 | 9000 | 11000 | – |
| N206ETN1 | 30 | 62 | 16 | 1 | 0.6 | 38 | 36.5 | 9500 | 12000 | 0.208 |
| NF206ETN1 | 30 | 62 | 16 | 1 | 0.6 | 38 | 36.5 | 9500 | 12000 | – |
| NU206ETN1 | 30 | 62 | 16 | 1 | 0.6 | 38 | 36.5 | 9500 | 12000 | – |
| NJ206ETN1 | 30 | 62 | 16 | 1 | 0.6 | 38 | 36.5 | 9500 | 12000 | – |
| NUP206ETN1 | 30 | 62 | 16 | 1 | 0.6 | 38 | 36.5 | 9500 | 12000 | – |
| N206 | 30 | 62 | 16 | 1 | 0.6 | 20.4 | 19.1 | 9500 | 12000 | 0.219 |
| NU206 | 30 | 62 | 16 | 1 | 0.6 | 20.4 | 19.1 | 9500 | 12000 | – |
| NJ206 | 30 | 62 | 16 | 1 | 0.6 | 20.4 | 19.1 | 9500 | 12000 | – |
| NUP206 | 30 | 62 | 16 | 1 | 0.6 | 20.4 | 19.1 | 9500 | 12000 | – |
| N2206E | 30 | 62 | 20 | 1 | 0.6 | 48.4 | 49 | 9500 | 12000 | 0.262 |
| NF2206E | 30 | 62 | 20 | 1 | 0.6 | 48.4 | 49 | 9500 | 12000 | – |
| NU2206E | 30 | 62 | 20 | 1 | 0.6 | 48.4 | 49 | 9500 | 12000 | – |
| NJ2206E | 30 | 62 | 20 | 1 | 0.6 | 48.4 | 49 | 9500 | 12000 | – |
| NUP2206E | 30 | 62 | 20 | 1 | 0.6 | 48.4 | 49 | 9500 | 12000 | – |
| N306ETN1 | 30 | 72 | 19 | 1.1 | 1.1 | 51.2 | 48 | 9000 | 11000 | 0.368 |
| N306EM/SO | 30 | 72 | 19 | 1.1 | 1.1 | 51.2 | 48 | 9000 | 11000 | 0.41 |
| NF306E | 30 | 72 | 19 | 1.1 | 1.1 | 51.2 | 48 | 9000 | 11000 | 0.368 |
| NU306E | 30 | 72 | 19 | 1.1 | 1.1 | 51.2 | 48 | 9000 | 11000 | – |
| NJ306E | 30 | 72 | 19 | 1.1 | 1.1 | 51.2 | 48 | 9000 | 11000 | – |
| NUP306E | 30 | 72 | 19 | 1.1 | 1.1 | 51.2 | 48 | 9000 | 11000 | – |
| N306 | 30 | 72 | 19 | 1.1 | 1.1 | 35.2 | 33.2 | 9000 | 11000 | 0.355 |
| NU306 | 30 | 72 | 19 | 1.1 | 1.1 | 35.2 | 33.2 | 9000 | 11000 | – |
| NJ306 | 30 | 72 | 19 | 1.1 | 1.1 | 35.2 | 33.2 | 9000 | 11000 | – |
| N2306E | 30 | 72 | 27 | 1.1 | 1.1 | 73.7 | 75 | 8000 | 9500 | 0.526 |
| NF2306E | 30 | 72 | 27 | 1.1 | 1.1 | 73.7 | 75 | 8000 | 9500 | – |
| NU2306E | 30 | 72 | 27 | 1.1 | 1.1 | 73.7 | 75 | 8000 | 9500 | – |
| NJ2306E | 30 | 72 | 27 | 1.1 | 1.1 | 73.7 | 75 | 8000 | 9500 | – |
| NUP2306E | 30 | 72 | 27 | 1.1 | 1.1 | 73.7 | 75 | 8000 | 9500 | – |
| N207ETN1 | 35 | 72 | 17 | 1.1 | 0.6 | 48.4 | 48 | 8500 | 10000 | 0.305 |
| NF207ETN1 | 35 | 72 | 17 | 1.1 | 0.6 | 48.4 | 48 | 8500 | 10000 | – |
| NU207ETN1 | 35 | 72 | 17 | 1.1 | 0.6 | 48.4 | 48 | 8500 | 10000 | – |
| NJ207ETN1 | 35 | 72 | 17 | 1.1 | 0.6 | 48.4 | 48 | 8500 | 10000 | – |
| NUP207ETN1 | 35 | 72 | 17 | 1.1 | 0.6 | 48.4 | 48 | 8500 | 10000 | – |
| N2207E | 35 | 72 | 23 | 1.1 | 0.6 | 59.4 | 63 | 8500 | 10000 | 0.403 |
| NF2207E | 35 | 72 | 23 | 1.1 | 0.6 | 59.4 | 63 | 8500 | 10000 | – |
| NU2207E | 35 | 72 | 23 | 1.1 | 0.6 | 59.4 | 63 | 8500 | 10000 | – |
| NJ2207E | 35 | 72 | 23 | 1.1 | 0.6 | 59.4 | 63 | 8500 | 10000 | – |
| NJ2207EM | 35 | 72 | 23 | 1.1 | 0.6 | 59.4 | 63 | 8500 | 10000 | 0.461 |
| NUP2207E | 35 | 72 | 23 | 1.1 | 0.6 | 59.4 | 63 | 8500 | 10000 | 0.403 |
| NUP2207EM | 35 | 72 | 23 | 1.1 | 0.6 | 59.4 | 63 | 8500 | 10000 | 0.474 |
| N307E | 35 | 80 | 21 | 1.5 | 1.1 | 64.4 | 63 | 8000 | 9500 | 0.492 |
| N307ETN1 | 35 | 80 | 21 | 1.5 | 1.1 | 64.4 | 63 | 8000 | 9500 | – |
| NF307E | 35 | 80 | 21 | 1.5 | 1.1 | 64.4 | 63 | 8000 | 9500 | – |
| NF307ETN1 | 35 | 80 | 21 | 1.5 | 1.1 | 64.4 | 63 | 8000 | 9500 | – |
| NU307E | 35 | 80 | 21 | 1.5 | 1.1 | 64.4 | 63 | 8000 | 9500 | – |
| NJ307E | 35 | 80 | 21 | 1.5 | 1.1 | 64.4 | 63 | 8000 | 9500 | – |
| NUp307E | 35 | 80 | 21 | 1.5 | 1.1 | 64.4 | 63 | 8000 | 9500 | – |
| N307 | 35 | 80 | 21 | 1.5 | 1.1 | 42.9 | 41.5 | 8000 | 9500 | 0.479 |
| NF307 | 35 | 80 | 21 | 1.5 | 1.1 | 42.9 | 41.5 | 8000 | 9500 | – |
| NU307 | 35 | 80 | 21 | 1.5 | 1.1 | 42.9 | 41.5 | 8000 | 9500 | – |
| NJ307 | 35 | 80 | 21 | 1.5 | 1.1 | 42.9 | 41.5 | 8000 | 9500 | – |
| N2307E | 35 | 80 | 31 | 1.5 | 1.1 | 91.3 | 98 | 7000 | 8500 | 0.723 |
| NF2307E | 35 | 80 | 31 | 1.5 | 1.1 | 91.3 | 98 | 7000 | 8500 | – |
| NU2307E | 35 | 80 | 31 | 1.5 | 1.1 | 91.3 | 98 | 7000 | 8500 | 0.723 |
| NJ2307E | 35 | 80 | 31 | 1.5 | 1.1 | 91.3 | 98 | 7000 | 8500 | – |
| NUP2307E | 35 | 80 | 31 | 1.5 | 1.1 | 91.3 | 98 | 7000 | 8500 | – |
| N208ETN1 | 40 | 80 | 18 | 1.1 | 1.1 | 53.9 | 53 | 7500 | 9000 | 0.383 |
| NF208ETN1 | 40 | 80 | 18 | 1.1 | 1.1 | 53.9 | 53 | 7500 | 9000 | – |
| NU208ETN1 | 40 | 80 | 18 | 1.1 | 1.1 | 53.9 | 53 | 7500 | 9000 | – |
| NJ208ETN1 | 40 | 80 | 18 | 1.1 | 1.1 | 53.9 | 53 | 7500 | 9000 | – |
| NUP208ETN1 | 40 | 80 | 18 | 1.1 | 1.1 | 53.9 | 53 | 7500 | 9000 | – |
| N2208E | 40 | 80 | 23 | 1.1 | 1.1 | 70.4 | 75 | 7500 | 9000 | 0.494 |
| NF2208E | 40 | 80 | 23 | 1.1 | 1.1 | 70.4 | 75 | 7500 | 9000 | – |
| NU2208E | 40 | 80 | 23 | 1.1 | 1.1 | 70.4 | 75 | 7500 | 9000 | – |
| NJ2208E | 40 | 80 | 23 | 1.1 | 1.1 | 70.4 | 75 | 7500 | 9000 | – |
| NUP2208E | 40 | 80 | 23 | 1.1 | 1.1 | 70.4 | 75 | 7500 | 9000 | – |
| N308ETN1 | 40 | 90 | 23 | 1.5 | 1.5 | 80.9 | 78 | 6700 | 8000 | 0.631 |
| NF308ETN1 | 40 | 90 | 23 | 1.5 | 1.5 | 80.9 | 78 | 6700 | 8000 | – |
| NU308ETN1 | 40 | 90 | 23 | 1.5 | 1.5 | 80.9 | 78 | 6700 | 8000 | – |
| NJ308ETN1 | 40 | 90 | 23 | 1.5 | 1.5 | 80.9 | 78 | 6700 | 8000 | – |
| NUp308ETN1 | 40 | 90 | 23 | 1.5 | 1.5 | 80.9 | 78 | 6700 | 8000 | – |
| N308 | 40 | 90 | 23 | 1.5 | 1.5 | 51.2 | 55.2 | 6700 | 8000 | 0.66 |
| N2308E | 40 | 90 | 33 | 1.5 | 1.5 | 112 | 120 | 6300 | 7500 | 0.951 |
| NF2308E | 40 | 90 | 33 | 1.5 | 1.5 | 112 | 120 | 6300 | 7500 | – |
| NU2308E | 40 | 90 | 33 | 1.5 | 1.5 | 112 | 120 | 6300 | 7500 | – |
| NJ2308E | 40 | 90 | 33 | 1.5 | 1.5 | 112 | 120 | 6300 | 7500 | – |
| NUP2308E | 40 | 90 | 33 | 1.5 | 1.5 | 112 | 120 | 6300 | 7500 | – |
| N209ETN1 | 45 | 85 | 19 | 1.1 | 1.1 | 60.5 | 64 | 6700 | 8000 | 0.44 |
| NF209ETN1 | 45 | 85 | 19 | 1.1 | 1.1 | 60.5 | 64 | 6700 | 8000 | – |
| NU209ETN1 | 45 | 85 | 19 | 1.1 | 1.1 | 60.5 | 64 | 6700 | 8000 | – |
| NJ209ETN1 | 45 | 85 | 19 | 1.1 | 1.1 | 60.5 | 64 | 6700 | 8000 | – |
| NUP209ETN1 | 45 | 85 | 19 | 1.1 | 1.1 | 60.5 | 64 | 6700 | 8000 | – |
| N2209E | 45 | 85 | 23 | 1.1 | 1.1 | 73.7 | 81.5 | 6700 | 8000 | 0.534 |
| NF2209E | 45 | 85 | 23 | 1.1 | 1.1 | 73.7 | 81.5 | 6700 | 8000 | – |
| NU2209E | 45 | 85 | 23 | 1.1 | 1.1 | 73.7 | 81.5 | 6700 | 8000 | – |
| NJ2209E | 45 | 85 | 23 | 1.1 | 1.1 | 73.7 | 81.5 | 6700 | 8000 | – |
| NUP2209E | 45 | 85 | 23 | 1.1 | 1.1 | 73.7 | 81.5 | 6700 | 8000 | – |
| N309E | 45 | 100 | 25 | 1.5 | 1.5 | 99 | 100 | 6300 | 7500 | 0.909 |
| NF309E | 45 | 100 | 25 | 1.5 | 1.5 | 99 | 100 | 6300 | 7500 | – |
| NU309E | 45 | 100 | 25 | 1.5 | 1.5 | 99 | 100 | 6300 | 7500 | – |
| NJ309E | 45 | 100 | 25 | 1.5 | 1.5 | 99 | 100 | 6300 | 7500 | – |
| NUp309E | 45 | 100 | 25 | 1.5 | 1.5 | 99 | 100 | 6300 | 7500 | – |
| N309 | 45 | 100 | 25 | 1.5 | 1.5 | 78.1 | 47 | 6300 | 7500 | 0.867 |
| NU309 | 45 | 100 | 25 | 1.5 | 1.5 | 78.1 | 47 | 6300 | 7500 | – |
| NJ309 | 45 | 100 | 25 | 1.5 | 1.5 | 78.1 | 47 | 6300 | 7500 | – |
| N2309E | 45 | 100 | 36 | 1.5 | 1.5 | 138 | 153 | 5600 | 6700 | 1.31 |
| NF2309E | 45 | 100 | 36 | 1.5 | 1.5 | 138 | 153 | 5600 | 6700 | – |
| NU2309E | 45 | 100 | 36 | 1.5 | 1.5 | 138 | 153 | 5600 | 6700 | – |
| NJ2309E | 45 | 100 | 36 | 1.5 | 1.5 | 138 | 153 | 5600 | 6700 | – |
| NUP2309E | 45 | 100 | 36 | 1.5 | 1.5 | 138 | 153 | 5600 | 6700 | – |
| N210ETN1 | 50 | 90 | 20 | 1.1 | 1.1 | 64.4 | 69.5 | 6300 | 7500 | 0.49 |
| NF210ETN1 | 50 | 90 | 20 | 1.1 | 1.1 | 64.4 | 69.5 | 6300 | 7500 | – |
| NU210ETN1 | 50 | 90 | 20 | 1.1 | 1.1 | 64.4 | 69.5 | 6300 | 7500 | – |
| NJ210ETN1 | 50 | 90 | 20 | 1.1 | 1.1 | 64.4 | 69.5 | 6300 | 7500 | – |
| NUP210ETN1 | 50 | 90 | 20 | 1.1 | 1.1 | 64.4 | 69.5 | 6300 | 7500 | – |
| N210 | 50 | 90 | 20 | 1.1 | 1.1 | 51.7 | 57.5 | 6300 | 7500 | – |
| N2210E | 50 | 90 | 23 | 1.1 | 1.1 | 78.1 | 88 | 6300 | 7500 | 0.573 |
| NF2210E | 50 | 90 | 23 | 1.1 | 1.1 | 78.1 | 88 | 6300 | 7500 | – |
| NU2210E | 50 | 90 | 23 | 1.1 | 1.1 | 78.1 | 88 | 6300 | 7500 | – |
| NJ2210E | 50 | 90 | 23 | 1.1 | 1.1 | 78.1 | 88 | 6300 | 7500 | – |
| NUP2210E | 50 | 90 | 23 | 1.1 | 1.1 | 78.1 | 88 | 6300 | 7500 | – |
| N310E | 50 | 110 | 27 | 2 | 2 | 110 | 162 | 5000 | 6000 | 1.17 |
| NF310E | 50 | 110 | 27 | 2 | 2 | 110 | 162 | 5000 | 6000 | – |
| NU310E | 50 | 110 | 27 | 2 | 2 | 110 | 162 | 5000 | 6000 | – |
| NJ310E | 50 | 110 | 27 | 2 | 2 | 110 | 162 | 5000 | 6000 | – |
| NUp310 | 50 | 110 | 27 | 2 | 2 | 69.9 | 76.3 | 5000 | 6000 | 1.21 |
| NUp310E | 50 | 110 | 27 | 2 | 2 | 110 | 162 | 5000 | 6000 | 1.16 |
| N310 | 50 | 110 | 27 | 2 | 2 | 69.9 | 70.3 | 5000 | 6000 | 1.12 |
| NU310 | 50 | 110 | 27 | 2 | 2 | 69.9 | 70.3 | 5000 | 6000 | – |
| NJ310 | 50 | 110 | 27 | 2 | 2 | 69.9 | 70.3 | 5000 | 6000 | – |
| N2310E | 50 | 110 | 40 | 2 | 2 | 161 | 186 | 5000 | 6000 | 1.75 |
| NF2310E | 50 | 110 | 40 | 2 | 2 | 161 | 186 | 5000 | 6000 | – |
| NU2310E | 50 | 110 | 40 | 2 | 2 | 161 | 186 | 5000 | 6000 | – |
| NJ2310E | 50 | 110 | 40 | 2 | 2 | 161 | 186 | 5000 | 6000 | – |
| NUP2310E | 50 | 110 | 40 | 2 | 2 | 161 | 186 | 5000 | 6000 | – |
| N211E | 55 | 100 | 21 | 1.5 | 1.1 | 84.2 | 95 | 6000 | 7000 | 0.67 |
| NF211E | 55 | 100 | 21 | 1.5 | 1.1 | 84.2 | 95 | 6000 | 7000 | – |
| NU211E | 55 | 100 | 21 | 1.5 | 1.1 | 84.2 | 95 | 6000 | 7000 | – |
| NJ211E | 55 | 100 | 21 | 1.5 | 1.1 | 84.2 | 95 | 6000 | 7000 | – |
| NUP211E | 55 | 100 | 21 | 1.5 | 1.1 | 84.2 | 95 | 6000 | 7000 | – |
| N211 | 55 | 100 | 21 | 1.5 | 1.1 | 56.1 | 59.4 | 6000 | 7000 | 0.626 |
| N2211E | 55 | 100 | 25 | 1.5 | 1.1 | 99 | 118 | 6000 | 7000 | 0.798 |
| NF2211E | 55 | 100 | 25 | 1.5 | 1.1 | 99 | 118 | 6000 | 7000 | – |
| NU2211E | 55 | 100 | 25 | 1.5 | 1.1 | 99 | 118 | 6000 | 7000 | – |
| NJ2211E | 55 | 100 | 25 | 1.5 | 1.1 | 99 | 118 | 6000 | 7000 | – |
| NUP2211E | 55 | 100 | 25 | 1.5 | 1.1 | 99 | 118 | 6000 | 7000 | – |
| N311E | 55 | 120 | 29 | 2 | 2 | 138 | 143 | 4800 | 5600 | 1.5 |
| NF311E | 55 | 120 | 29 | 2 | 2 | 138 | 143 | 4800 | 5600 | – |
| NU311E | 55 | 120 | 29 | 2 | 2 | 138 | 143 | 4800 | 5600 | – |
| NJ311E | 55 | 120 | 29 | 2 | 2 | 138 | 143 | 4800 | 5600 | – |
| NUp311E | 55 | 120 | 29 | 2 | 2 | 138 | 143 | 4800 | 5600 | – |
| N311 | 55 | 120 | 29 | 2 | 2 | 103 | 107 | 4800 | 5600 | 1.46 |
| NF311 | 55 | 120 | 29 | 2 | 2 | 103 | 107 | 4800 | 5600 | – |
| NJ311 | 55 | 120 | 29 | 2 | 2 | 103 | 107 | 4800 | 5600 | – |
| NUp311 | 55 | 120 | 29 | 2 | 2 | 103 | 107 | 4800 | 5600 | – |
| N2311E | 55 | 120 | 43 | 2 | 2 | 201 | 232 | 4800 | 5600 | 2.24 |
| NF2311E | 55 | 120 | 43 | 2 | 2 | 201 | 232 | 4800 | 5600 | – |
| NU2311E | 55 | 120 | 43 | 2 | 2 | 201 | 232 | 4800 | 5600 | – |
| NJ2311E | 55 | 120 | 43 | 2 | 2 | 201 | 232 | 4800 | 5600 | 2.52 |
| N212E | 60 | 110 | 22 | 1.5 | 1.5 | 93.5 | 102 | 5300 | 6300 | 0.836 |
| NF212E | 60 | 110 | 22 | 1.5 | 1.5 | 93.5 | 102 | 5300 | 6300 | – |
| NU212E | 60 | 110 | 22 | 1.5 | 1.5 | 93.5 | 102 | 5300 | 6300 | – |
| NJ212E | 60 | 110 | 22 | 1.5 | 1.5 | 93.5 | 102 | 5300 | 6300 | – |
| NUP212E | 60 | 110 | 22 | 1.5 | 1.5 | 93.5 | 102 | 5300 | 6300 | – |
| N2212E | 60 | 110 | 28 | 1.5 | 1.5 | 128 | 153 | 5300 | 6300 | 1.09 |
| NF2212E | 60 | 110 | 28 | 1.5 | 1.5 | 128 | 153 | 5300 | 6300 | – |
| NU2212E | 60 | 110 | 28 | 1.5 | 1.5 | 128 | 153 | 4300 | 6300 | – |
| NJ2212E | 60 | 110 | 28 | 1.5 | 1.5 | 128 | 153 | 4300 | 6300 | – |
| NUP2212E | 60 | 110 | 28 | 1.5 | 1.5 | 128 | 153 | 4300 | 6300 | – |
| N312E | 60 | 130 | 31 | 2.1 | 2.1 | 151 | 160 | 4300 | 5000 | 1.83 |
| N312EM | 60 | 130 | 31 | 2.1 | 2.1 | 151 | 160 | 4300 | 5000 | 2.01 |
| NF312E | 60 | 130 | 31 | 2.1 | 2.1 | 151 | 160 | 4300 | 5000 | 1.83 |
| NU312E | 60 | 130 | 31 | 2.1 | 2.1 | 151 | 160 | 4300 | 5000 | – |
| NJ312E | 60 | 130 | 31 | 2.1 | 2.1 | 151 | 160 | 4300 | 5000 | – |
| NUP312E | 60 | 130 | 31 | 2.1 | 2.1 | 151 | 160 | 4300 | 5000 | – |
| N312 | 60 | 130 | 31 | 2.1 | 2.1 | 123 | 132 | 4300 | 5000 | 1.79 |
| NU312 | 60 | 130 | 31 | 2.1 | 2.1 | 123 | 132 | 4300 | 5000 | – |
| NJ312 | 60 | 130 | 31 | 2.1 | 2.1 | 123 | 132 | 4300 | 5000 | – |
| NUP312 | 60 | 130 | 31 | 2.1 | 2.1 | 123 | 132 | 4300 | 5000 | – |
| N2312E | 60 | 130 | 46 | 2.1 | 2.1 | 224 | 265 | 4300 | 5000 | 2.75 |
| NF2312E | 60 | 130 | 46 | 2.1 | 2.1 | 224 | 265 | 4300 | 5000 | – |
| NU2312E | 60 | 130 | 46 | 2.1 | 2.1 | 224 | 265 | 4300 | 5000 | – |
| NJ2312E | 60 | 130 | 46 | 2.1 | 2.1 | 224 | 265 | 4300 | 5000 | – |
| NUP2312E | 60 | 130 | 46 | 2.1 | 2.1 | 224 | 265 | 4300 | 5000 | – |
Conclusion
Cylindrical roller bearings are exceptional components of any mechanical system that handle radial load by reducing friction and improving efficiency. However, they have certain limitations as well. They cannot be used for axial load handling and are sensitive to slight misalignments. They have three types which are single-row, double-row, and full-complement cylindrical roller bearings.
Want more information? Contact BYWB Bearing for all your bearing-related queries. We are leading bearing manufacturers and suppliers in China, providing custom solutions for your specific bearing needs.
1人评论了“Cylindrical Roller Bearing Overview”
Really clear cylindrical roller bearing overview — the rib-configuration breakdown (NU vs. NJ vs. NUP vs. NF) finally made it obvious which one I needed for my gearbox rebuild: a floating NU setup to let the shaft expand axially, with a locating NUP on the far side. The comparison against spherical roller bearings was the most useful part for me; it’s exactly why I went cylindrical for the high-speed motor end instead of a self-aligning unit, even though it meant tightening up my housing alignment. The size chart with the dynamic Cr and limiting speed values saved me a cross-reference against the catalog. Great technical read!