Product Parameters
High precision cylindrical roller bearings for sports equipment parts/machine tools /
Rolling mill/Industrial machinery bearings
The role of cylindrical roller bearings
Cylindrical roller bearing is a kind of rolling bearing, which is characterized by linear contact between the rolling element and the raceway, and has a large radial bearing capacity. This kind of bearing mainly bears radial load, and the friction between the rolling body and the rim of the ring is small, so it is suitable for high-speed rotation. Cylindrical roller bearings can be divided into two types according to whether the ring has a rib or not, and the inner ring and the outer ring can be separated, which makes the installation and disassembly more convenient.
The internal structure of cylindrical roller bearings adopts rollers arranged in parallel, and there is a spacer or isolation block between the rollers to prevent the tilt of the rollers or friction with each other, so as to effectively prevent the increase of rotating torque. The radial carrying capacity of this bearing is 1.5 to 3 times higher than that of ball bearings of the same size, with good rigidity and impact resistance, especially suitable for short shafts with rigid supports, shafts with axial displacement caused by thermal elongation and machine accessories requiring separate 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.
Bearing type
Product Description
A cylindrical roller bearing with an inner or outer ring without a fender, in which the inner and outer rings can move relative to each other on the axis, can be used as a free-end bearing. Cylindrical roller bearings with double rings on one side of the inner and outer rings and single rings on the other side of the rings can bear a certain degree of axial load in one direction. Generally, steel plate stamping cage or copper alloy car solid cage is used. But some are made of nylon. Cylindrical rollers and raceways for line contact bearings. Large bearing capacity, mainly bear radial load. The friction between the rolling element and the ring edge is small, suitable for high-speed rotation. According to whether the ring has a ring, it can be divided into NU, NJ, NUP, N, NF and other single-row cylindrical roller bearings and NNU, NN and other double-row cylindrical roller bearings. The bearing is a removable structure with an inner ring and an outer ring.
Installation Instructions
There are two common ways for the correct installation of cylindrical roller bearings: one is cold installation, and the other is hot installation.
1, cold installation:
When installing small bearings that are not too tight, the bearings can be installed into the appropriate position by tapping the sleeve gently through a sleeve and hammering method. When knocking, the effect should be as uniform as possible on the cylindrical roller bearing ring to prevent the bearing from tilting or skewing. Most cylindrical roller bearings are mounted by pressing method. If the inner and outer rings of the cylindrical roller bearing are installed on the shaft and the bearing seat at the same time, it must be ensured that the same pressure is applied to the inner and outer rings at the same time, and the contact surface of the installation tool must be on the same plane.
2, hot installation:
Under normal circumstances, for the installation of larger bearings, it is not possible to heat the bearing or bearing seat, because the greater the force required for installation as the size increases. The temperature difference between the cylindrical roller bearing ring and the shaft or bearing seat required for hot installation mainly depends on the interference amount and the diameter of the bearing fit. Open bearing heating temperature shall not exceed 120°C. It is not recommended to heat cylindrical roller bearings with seals and dust caps above 80°C (ensure that the temperature does not exceed the temperature allowed by the seals and grease). When heating cylindrical roller bearings, it is necessary to heat evenly, and there must be no local overheating.
Our Advantages
Hongbang Bearing Company has rich experience and expertise in the field of bearing manufacturing, and has always maintained a competitive advantage in the market through continuous innovation and technological upgrading. The company has a high-quality research and development team, and constantly introduce advanced production technology and processes to ensure that the quality and performance of products meet international standards. Our company's products cover a variety of fields, including mechanical equipment, automobiles, motorcycles, power tools and so on. Whether in industrial production or daily life, Hongbang bearings play a vital role. The main types of bearings produced by the company include deep groove ball bearings, cylindrical roller bearings, tapered roller bearings, aligning roller bearings, imported high-end products, P0, P6, P5 precision bearings, to meet the needs of different customers, the company has the right to import and export, products are not only sold throughout the country, but also in dozens of other countries and regions are sold. Hongbang bearing company pays attention to product quality and customer satisfaction, through strict quality control and after-sales service, to provide customers with reliable product protection. The company has advanced production equipment and strict quality management system to ensure that each batch of products meet high standards of quality requirements. In the process of the development of the company, Hongbang bearing has always been adhering to the "quality first, integrity-based, continuous improvement, common development" business philosophy, we adhere to the "quality first, service first, continuous improvement and innovation to meet customers" management principles and "zero defects, zero complaints" quality objectives. Through close cooperation with customers and continuous innovation, the company has not only made remarkable achievements in the domestic market, but also gradually expanded the international market, and won the trust and praise of customers.
In the future, Hongbang Bearing Company will continue to be committed to technological innovation and product optimization, and constantly improve its competitiveness and market position. The company will continue to adhere to the "quality first, customer first" principle, to provide customers with more quality products and services.
Packaging & Shipping
FAQ
Why choose us?
1. Quality Control In order to ensure the quality of our vehicles and other products, our QC personnel carry out strict supplier evaluation, incoming inspection, process inspection, final inspection and pre-delivery inspection. Most importantly, we listen to our customers and are always looking for ways to improve the quality of our products through continuous improvement.
2. We have established long-term and stable cooperative relations with major supermarkets, and can also provide ODM, OEM and agency services for customers all over the world.
3. We have spare bearings that can be delivered immediately to any place in the world. Our bearings are widely used in motor, fan, injection molding machine, mining, mechanical equipment, metallurgy, rolling, automobile, railway, steel, electric power, textile, packaging, petroleum, paper and other fields
4. We put customer satisfaction and product quality in the first place. We provide reliable guarantee and good after-sales service.
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