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Four row cylindrical roller bearings
<p>Four row cylindrical roller bearings can carry much heavier radial load and shock load. They have higher precision and can be applied in the equipment which runs with high rotational speed. Grinding the surface of raceway and roller at same time after the inner ring is pressed on roller neck, it favors the improvement of rolling precision and the free adjustment of mounting clearance of bearings. These bearings are mostly applied to the working roller and backup roller of rolling mills and some other cases.</p> <p>FC: double outer rings, single inner ring, and inner without flange.</p> <p>FCD: double outer rings, double inner rings, and inner ring without flange.</p> <p>FCDP: double outer rings, only have center flange, but with loose rib, double inner ring, inner without flange.</p>
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JINAN SHENGBANG BEARING CO.,LTD.

Main Products:Ball Bearing,Roller Bearing,Thrust bearing,Pillow block Bearing,Spherical Plain Bearing,Special Bearing

Jinan Economic Development Zone, Shandong Province, China

+86 13863522839

[email protected]

Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the rib of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs or not, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a structure in which the inner ring and the outer ring can be separated.

Cylindrical roller bearings without ribs on the inner or outer ring, the inner and outer rings can move relative to the axial direction, so they can be used as free end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. Generally, a steel stamping cage is used, or a copper alloy turning solid cage is used. However, there are also part of the use of polyamide forming cage.

Four row cylindrical roller bearings

Four row cylindrical roller bearings

N type:

The inner ring has two integral flanges and the outer ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself. The bearings are therefore used as non-locating bearings.

NU type:

The outer ring of bearings of the NU design has two integral flanges and the inner ring is without flanges. Axial displacement of the shaft with respect to the housing can be accommodated in both directions within the bearing itself.

NJ type:

The outer ring has two integral flanges and the inner ring one integral flange. The bearings are therefore suitable for the axial location of a shaft in one direction.

NF type:

The outer ring has one integral flange and the inner ring two integral flanges.

NUP type:

The outer ring has two integral flanges and the inner ring one integral flange and one non-integral flange in the form of a loose flange ring. The bearings can be used as locating bearings, i.e. they can provide axial location for a shaft in both directions.

RN type:

No outer ring and the inner ring two integral flanges.

NN type:

NN type bearing without ribs on outer ring,there is a wall in the midel of between both sides of inner ring. It can make shaft relative bearing between the axial displacement generated in both directions.

Four row cylindrical roller bearings

1.The friction between the rolling element of four row cylindrical roller bearing and the retaining edge of the ring is small, which is suitable for high-speed rotation.

2.According to whether the ferrule has retaining edge or not, it can be divided into single row bearings such as Nu, NJ, NUP, N and NF, and double row bearings such as NNU and NN.

3.The bearing is a separable structure of inner ring and outer ring. Cylindrical roller bearing with no flange on the inner ring or outer ring, whose inner ring and outer ring can move relative to each other in the axial direction, can be used as a free end bearing.

4.A cylindrical roller bearing with double retaining edges on one side of the inner ring and the outer ring and a single retaining edge on the other side can bear a certain degree of axial load in one direction.

5.Generally, steel plate stamping cage or copper alloy car cage are used.

 

Cylindrical roller bearing features

1. Roller And Raceway For Line Contact Or Repair Line Contact, Radial Bearing Capacity Is Large, Suitable For Bearing Heavy Loads And Impact Loads.

2. Small Friction Coefficient, Suitable For High Speed, Limit Speed Close To Deep Groove Ball Bearings.

3. N Type And Nu Type Can Move Axially, Can Adapt To The Change Of The Relative Position Of The Shaft And The Housing Caused By Thermal Expansion Or Installation Error, And Can Be Used As A Free End Support.

4. The Processing Requirements For The Shaft Or Seat Hole Are Higher, And The Relative Deviation Of The Outer Ring Axis After The Bearing Installation Should Be Strictly Controlled To Avoid Contact Stress Concentration.

5. The Inner Ring Or Outer Ring Can Be Separated For Easy Installation And Disassembly

Four row cylindrical roller bearings

Jinan Shengbang Bearing Co., Ltd. is a modern precision bearing manufacturer integrating R&D(research and development), production and sales. Our company has advanced production equipment, fully adopting advanced production technology and modern testing equipment to improve the precision performance of our products. The company promotes the"WGHB" brand, specializing in the production of deep groove ball bearings, taper roller bearings, spherical roller bearings, cylindrical roller bearings, pillow block bearings and other special bearings and non-standard bearings. 

Our products with high precision and low noise, are widely used in metallurgy, mining,petroleum,chemical,coal, cement, paper,wind power, heavy machinery, port machinery and other industries. The company has independent import and export management rights. The products are sold all over the world, exported to more than fifty countries and regions such as South America,Western Europe, Southeast Asia, Central Asia, Africa and Australia. 

The company always takes "solution, creation, value" as business philosophy, providing excellent bearing solutions for domestic and foreign customers. WGHB Bearings has passed ISO9001:2008 and ISO14001:2004. Through the implementation of strict quality standards, taking rigorous quality control measures to improve product quality and service quality, WGHB Bearings provides high quality products and services to consumers around the world.

Jinan Shengbang Bearing Co., Ltd. is a modern precision bearing manufacturer integrating R&D(research and development), production and sales. Our company has advanced production equipment, fully adopting advanced production technology and modern testing equipment to improve the precision performance of our products. The company promotes the"WGHB" brand, specializing in the production of deep groove ball bearings, taper roller bearings, spherical roller bearings, cylindrical roller bearings, pillow block bearings and other special bearings and non-standard bearings. 

 

Our products with high precision and low noise, are widely used in metallurgy, mining,petroleum,chemical,coal, cement, paper,wind power, heavy machinery, port machinery and other industries. The company has independent import and export management rights. The products are sold all over the world, exported to more than fifty countries and regions such as South America,Western Europe, Southeast Asia, Central Asia, Africa and Australia. 

 

The company always takes "solution, creation, value" as business philosophy, providing excellent bearing solutions for domestic and foreign customers. WGHB Bearings has passed ISO9001:2008 and ISO14001:2004. Through the implementation of strict quality standards, taking rigorous quality control measures to improve product quality and service quality, WGHB Bearings provides high quality products and services to consumers around the world.

 

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