China OEM CZPT Single-Row Cylindrical Roller Bearing Nu/Nj/Nup/N/NF Series ball bearing

Product Description

Product Introduction

The rolling body of single- row cylindrical roller bearing  is a cylindrical roller, it belongs to separable bearing, easy for installation and disassembly.It can be divided into N, NU, NJ, NF, NUP… single-row series and NNU, NN double row series according to if the ring has a rim or not. In addition, there are multiple-row cylindrical roller bearings.Cylindrical roller bearings generally use copper alloy solid cage or engineering plastic cage, when the speed is low and the load is large, it can be designed into a full roller structure without cage.

Cylindrical roller bearing roller is in line contact with racyway, it has large load capacity and mainly bear radial load.
Friction between rolling body and the rim of ring is small, which is suitable for high-speed rotation and requires higher coaxiality in use.Cylindrical roller bearing without rim of inner or outer rings, whose inner and outer rings can move relative to each other in axial direction, so it can be used as free-end bearings.There are double guard rim on one side of inner and outer ring, cylindrical roller bearing with a single rim on the other side of the ring can withstand a certain degree of unidirectional axial load.

HRB cylindrical roller bearings are famous for its long life. The professional design makes bearings have a certain axial load capacity while maximizing the radial load capacity.HRB provides cylindrical roller bearings for railway vehicles using internal control thermal process method, which enables the bearing surface to have stable compressive stress and overall excellent impact resistance.


Product Feature

·The inner or outer ring can be separated,  easy for installation and disassembly;
·Large radial bearing capacity, suitable for bearing heavy load and impact load;
·Small friction coefficient, suitable for high speed, limit speed close to deep groove ball bearings;
·N type and NU type can move axially and can be used as free end support;
·The processing requirements of shaft or seat hole are higher to prevent relative deflection, so as not to cause contact stress concentration;



Large and medium-sized electric motors, rolling stock, machine tool spindles, internal combustion engines, generators, gas turbines, reduction boxes, rolling mills, vibrating screens and lifting and transportation machinery, etc.


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Why choose us?

What can we do for you?
·100% Original Brand Bearings; 
·Universal or OEM Bearings ;
·Optional bearing’s material, type and quality;
·Help you to buy the most suitable bearing with factory price;

Why choose our bearings?

Our bearings come with multiple times grinding, better material, high precision steel rollers and balls, outer and inner chamfer, suitable slot angle. So, our bearings are of higher precision, and runs more smoothly. The service life is also longer.

Why choose our company?
·We have professional technicians with more than 20 years of technical experience;
·We are reliable bearing supplier and have been verified by Made in China;
·Various safe payment terms including T/T, Trade Assurance, Credit Card, PayPal, Western Union, MoneyGram, etc;
·And our team will reply your questions timely and efficiently;

Welcome to visit our showroom website, please contact us for more details.

Material: Bearing Steel
Load Direction: Radial Bearing
Transport Package: Fumigation Wooden Case
Trademark: HRB
Origin: China
US$ 1/Piece
1 Piece(Min.Order)

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What is a bushing?

What is a bushing? Basically, bushings are spherical or spherical bearings for machines with sliding or rotating shaft assemblies. Due to their excellent load-carrying capacity and anti-friction properties, these bushings are used in almost all industrial applications. This makes them useful in industries such as construction, mining, agriculture, transportation, hydropower, food processing and material handling.

Shell information

The demand for bushings is closely related to the global transformer market. Growing renewable energy sources and high replacement rates of aging grid infrastructure are driving the global demand for transformer bushings. Increased urbanization is another factor driving the demand for transformer bushings. Among global regions, Asia Pacific is the largest market for medium voltage transformer bushings. The following section provides a detailed analysis of the market.
Bulk-type bushings are used for lower voltage ratings and consist of a center conductor stud or tube and an insulator housing. They are available in dry or oil filled versions, and their oil content is shared with the transformer main tank. However, the trend is slowly turning towards RIP bushings. Regardless of how different types of bushings are used, it is important to understand the difference between them.
A recent CZPT survey indicated that bushings account for 17% of all transformer failures. Among them, 30% caused fire accidents and 10% caused explosions. This is not a small risk, especially for such important electrical components as transformers. Because casing is so important, utilities are increasingly looking to preventative maintenance. However, this requires continuous monitoring of the bushing and its insulation. There are many benefits to using online condition monitoring.
One of the main benefits of locating and replacing faulty bushings is improved operability and safety. If you notice that your car is unstable in the corners, your bushings are worn. Anti-roll bar bushings can also be a sign of bushing damage. Do not ignore these warning signs as they can have dangerous consequences. To avoid these potential problems, make sure to get your vehicle serviced as soon as you notice any of these symptoms.
Be sure to park your vehicle on a level surface before you start changing your car bushings. You may need to unlock the hood latch and apply the brakes before continuing. Then, open the valve cover. This will allow you to see the engine area and bushings. You should also check that the wheels are not moving and avoid placing sharp objects in the engine bay. If you have time, open the hood and if you can see the bushings, turn on the headlights.


There are various types of bushings, each serving a different purpose. Oil-filled types are the most common and are designed for vertical installations. On the other hand, the embedded ferrule can accommodate the connection to the wire leads in the lower end of the ferrule. This feature significantly reduces the length of the sump end of the casing, but also adds additional complexity and cost.
There are two basic types of bushings. The first is a solid pour and the second is a capacitive graded variety. Solid cast bushings are typically used for low voltage transformer windings, while gas insulated bushings are insulated with pressurized gas. Gas-insulated bushings are also used in SF6 circuit breakers. If you are in the market for a new bushing, be sure to consider its cantilever strength and design.
Electrical bushings are an important part of various electrical equipment. They help carry high-voltage current through the enclosure and act as an insulator between a live conductor and a metal body at ground potential. Bulk-type bushings consist of a central conductive rod (usually copper or aluminum) and an insulator (silicone rubber compound or composite resin) surrounding the rod.
Transformers require transformer bushings. The construction and materials used in the bushing play a key role in the durability and longevity of the transformer. Transformers with weak bushings can fail, causing extensive damage. Moisture or voids can cause insulation breakdown, resulting in extensive electrical damage. Appropriate materials and optimized construction can reduce electric field stress and extend the life of the bushing.
Capacitor grading bushings are more expensive and are used in almost all high voltage systems. They use a conductive layer within the insulating layer between the center conductor and the insulator. Different manufacturers use different materials to produce these bushings. Earlier, capacitor grading bushings were made of concentric ceramic cylinders with metallized surfaces. They are also made from laminated cardboard tubes with conductive layers.


A bushing is a support member that performs its function by acting as a washer and reducing noise and vibration. Bushings are used in valve covers and are made of corrosion-resistant materials to perform these functions. These products can be found in all types of machinery from cars to airplanes. Below are some common uses for bushings. Read on to discover more. Here are some of the most important features of the shell.
Electrical bushings transmit electricity. They can be used in circuit breakers, transformers, power capacitors and shunt reactors. The conductors of the bushing can be built directly into the bushing or through the bushing. Both current and voltage represent electricity. The bushing must have insulation capable of withstanding the voltage and its current-carrying conductors must be capable of carrying the rated current without overheating the adjacent insulation.
The bushing wraps around the stem, which is a relatively simple replacement part. It is a hardened part that prevents leaks and improves sealing. Plus, its low-cost replacement makes it a very easy-to-machine part. Bushings are also used in valves for guiding purposes. These two features make bushings an important part of many machines and applications. So, learn more about them.
Copper and brass are commonly used bushing materials. They have high compressive strength and high surface pressure. This material is suitable for bearings in low speed situations and heavy duty applications. Copper and brass are the most common types of casings, and they are both made in China. They are all relatively inexpensive and are available in a variety of materials and sizes. If you are considering purchasing a casing, keep in mind that it must meet national standards.


Whether you’re looking for a replacement bushing for your rear suspension or just need to replace the fork, you have a few different options. The two main types of bushings are coated and uncoated. If you want to save money on bushing replacements, you should consider getting a cheaper lower fork. Whether you’re replacing bushings to improve ride quality or prevent damage to your wheel loader, you’ll find a bushing replacement option that fits your budget.
While most cars are compatible with bushings, some iconic parts from premium brands like BMW and Mercedes require special tools to replace. If you are not confident in your mechanical abilities, consider hiring a mechanic to do it. Mechanical replacement bushings typically range from $200 to $500. If you’re comfortable with mechanics and have some mechanical knowledge, you can save money by trying the job yourself. For example, control arm bushings range in price from $20 to $80. It is important to check the alignment after replacing the bushing to avoid further damage.
Control arm bushing replacements are usually relatively inexpensive, but you may need to replace several at the same time. You should check the prices of several mechanics before making a decision. You can easily save between $50 and $100 by comparing quotes. Plus, you’ll save a lot of money by finding the right mechanic for the job. You can also use an online comparison tool to compare prices. You can find a mechanic that suits your needs at an affordable price.
Control arm bushings are also an inexpensive way to replace parts of a car’s front or rear suspension. Typically, control arm bushings are made of two metal cylinders covered with a thick layer of rubber. They wear out due to accidents, potholes and off-roading. They are mounted with a bolt that goes through the inner barrel. It is important to replace these bushings as often as needed to improve operation.

China OEM CZPT Single-Row Cylindrical Roller Bearing Nu/Nj/Nup/N/NF Series   ball bearingChina OEM CZPT Single-Row Cylindrical Roller Bearing Nu/Nj/Nup/N/NF Series   ball bearing
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