Deep Groove Ball Bearings
Linqing Tuocheng Bearing Co., Ltd： You Professional Deep Groove Ball Bearings Manufacturer!
Linqing Tuocheng Bearing Co., Ltd. was established in June 2002 and is located in Panzhuang Town, Linqing City, Liaocheng City, Shandong Province. It has been committed to the research and development, production, sales and service of high-quality bearings. Each bearing produced by the company is developed from the requirements of safety, high temperature resistance and wear resistance. The company's products are exported to more than a dozen countries such as Russia, Lithuania, Iran, and Dubai.
Rich Product Variety
Our company can produce self-aligning ball bearings, Spherical Roller Bearing CA Series, Spherical Roller Bearing MA Series, Spherical Roller CC Series and Spherical Roller Bearing MB Series
Wide Range of Product Uses
Our tapered roller bearings are often used in applications where there is a requirement for heavy-duty operation. These include earth moving equipment, mining machines, industrial machinery, construction vehicles, marine vessels, wind turbines, and so on.
Quality Guaranteed
Our tapered roller bearings are rigorously tested to ensure durability and long-lasting performance.With our advanced technology and manufacturing equipment,They are developed from several safety, high temperature resistance, wear resistance and other requirements.
Leading Service
We have many years of industry experience and a comprehensive production management, quality supervision, sales service operation system. Whether you want to purchase spontaneous tiles or reflective paint, simply send your requirements via email and we can customize the product for you.
Related Product Introduction
Product Features In order to obtain low friction torque, high rigidity, and good rotation accuracy of the bearing, steel balls with small outer diameters are used. The use of hollow shafts ensures light weight and space for wiring.
Product Features In order to obtain low friction torque, high rigidity, and good rotation accuracy of the bearing, steel balls with small outer diameters are used. The use of hollow shafts ensures light weight and space for wiring.
In the past 40 years, new mechanical parts have gradually emerged around the world. It consists of inner and outer rings, rolling elements, etc. The slewing bearings produced in my country are mainly introduced by the Tianjin Construction Machinery Research Institute designated by the Ministry of Machinery Industry in the early 1980s.
The outer ring of the roller bearing adopts a full complement cylindrical roller bearing with a thick outer ring wall. The outer diameter surface of the roller has a cylindrical shape and an arc shape, which can be designed to match the raceway surface according to the application. With this outer ring, the rollers can roll directly on the raceway and can withstand heavier loads and shock loads.
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 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.
When the outer ring is particularly thick, it is installed in groups on the stationary shaft to become the bearing of the support roller.
According to the force, it is divided into one-way thrust ball bearings and two-way thrust ball bearings. One-way thrust ball bearing can bear one-way axial load. Two-way thrust ball bearing can bear two-way axial load, in which the shaft ring is matched with the shaft.
What is Deep Groove Ball Bearings
Deep groove ball bearings are the most widely used bearing type and are particularly versatile. They have low friction and are optimized for low noise and low vibration which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than other bearing types.
Enhanced and better radial load capacity
Conventional bearings do not have the heightened radial support that deep groove ball bearings do. Boasting superior radial-load carrying capabilities makes them a better choice.
Support bi-directional forces
The straightforward construction of deep groove ball bearings contributes to their ability to handle axial and radial loads in both directions.
High speeds
Deep groove ball bearings have a higher speed as compared to roller bearings because of the reduced contact between the rolling elements and the presence of raceways.
Improve load capacity
Because of the bearings' designs, less stress is imposed due to the equal transfer of the weight between races. This makes it suitable for heavy machinery equipment.
Versatile
Aside from heavy machinery, the deep groove can also be found in domestic applications such as refrigerators, motors, fans and pumps as it can reduce friction with minimal noise.
Easy maintenance
Several design characteristics make their maintenance relatively easy such as shields and sealed which protects them against contamination. It is also built with multiple lubrication options which requires very minimal maintenance over time.
Type of Groove Ball Bearings
Single row bearings
Single row bearings are particularly suitable where high and very high speeds are required
the bearing arrangement must be operated with very low friction, very low running noise is required, without reducing the speed, load carrying capacity and operating life of the bearing (Generation C), high demands are made on the sealing of the bearing, without increasing heat generation or limiting the speed (Generation C) and the bearing position is to be designed particularly economically. It is suitable for predominantly radial loads.
The balls are in contact with the raceways at one point only. Under purely radial load, the contact points between the rolling elements and raceways lie at the centre of the raceway. As a result, the connection between the contact points passes through the radial plane, i.e. the optimum load direction is a pure radial load
The load carrying capacity is dependent on the bearing series. As a result, deep groove ball bearings of series 618 and 619, with their smaller bearing cross-sections, cannot support loads as high as series 60, 62 and 63 – with identical dimensions relative to bore diameter d – with their larger cross-sections .
Double row bearings
Double row bearings can be considered for bearing arrangements where the load carrying capacity of single row deep groove ball bearings is no longer sufficient, axial loads in both directions and/or tilting moments must be supported in addition to radial loads a high load carrying capacity is required and the design envelope available in a radial and axial direction is relatively small. This is capable of supporting axial loads in both directions.Due to the deep raceway grooves in the bearing rings and the narrow osculation between the raceway grooves and balls, single row deep groove ball bearings can support axial loads in both directions. The axial load carrying capacity is dependent, for example, on the bearing size, the internal construction and the operating clearance. If the axial load is too high, however, this can increase the running noise and considerably reduce the operating life of the bearings.
Installation of Groove Ball Bearings
Press Fit
When the inner ring of the bearing and the shaft are tightly fitted, and the outer ring and the bearing seat hole are loosely fitted, the bearing can be press-fitted on the shaft first, and then the shaft together with the bearing. Put them into the hole of the bearing seat together. When press-fitting, on the end face of the inner ring of the bearing, pad an assembly sleeve (copper or mild steel) made of soft metal material. The outer ring of the bearing is tightly fitted with the hole of the bearing seat, and the inner ring and the shaft are When the fit is loose, the bearing can be pressed into the bearing seat hole first. At this time, the outer diameter of the assembly sleeve should be slightly smaller than the diameter of the seat hole. If the bearing ring is tightly fitted with the shaft and the seat hole, install the inner ring and the seat hole. The outer ring should be pressed into the shaft and the seat hole at the same time, and the structure of the assembly sleeve should be able to press the end faces of the inner ring and the outer ring of the bearing at the same time.
Heating Fit
By heating the bearing or bearing seat, the tight fit is transformed into a loose fit by thermal expansion. It is a common and labor-saving installation method. This method is suitable for large interference. For the installation of the bearing, put the bearing or separable bearing ring into the oil tank and heat it evenly at 80-100 ℃ before hot-loading, and then take it out of the oil and install it on the shaft as soon as possible. In order to prevent the end face of the inner ring and the shaft shoulder after cooling If the fit is not tight, the bearing can be axially tightened again after cooling. When the outer ring of the bearing is tightly fitted with the light metal bearing seat, the hot-fitting method of heating the bearing seat can be used to avoid the mating surface from being scratched. When heating the bearing with the oil tank, there should be a mesh grid at a certain distance from the bottom of the box, or hang the bearing with a hook. The bearing should not be placed on the bottom of the box to prevent heavy impurities from entering the bearing or uneven heating. There must be a thermometer in the oil tank. Strictly control the oil temperature not to exceed 100 ℃ to prevent the tempering effect and reduce the hardness of the ferrule.
Clearance of Groove Ball Bearings
The radial clearance of the bearing is divided into original clearance, installation clearance and working clearance. Usually, the original radial clearance of the bearing is larger than the clearance of the bearing during operation. Clearance is an important technical parameter of the bearing, which directly affects the technical performance of the bearing, such as load distribution, vibration, noise, friction, service life and mechanical motion accuracy. Strictly speaking, the dynamic load rating of the bearing varies with the size of the clearance. The load ratings (C and C0) listed in the catalog are the load values with zero operating clearance. If the clearance is too large, the internal bearing area of the bearing will be reduced, the stress of the rolling contact surface will increase, the motion accuracy of the bearing will decrease, the vibration and noise will increase, and the service life of the bearing will be shortened: if the clearance is too small, it will cause heat generation. It will even cause the bearing to "seize" during operation. Therefore, it is very important to select different grades of bearing clearance according to the type of bearing and working conditions.
Standard deep groove ball bearings have C2, standard (CN), C3, C4 and C5 internal clearances, all of which are in line with GB4604. ·The radial clearance of deep groove ball bearings is shown in the table below.long the axial direction. The maximum swing of the dial is the axial clearance value.
Maintenance of Groove Ball Bearings
Greased Bearings are Maintenance-free
Deep groove ball bearings sealed on both sides are lubricated with a high quality lithium soap grease with a mineral oil base, which has good anti‑corrosion characteristics. The grease filling is measured so that it is sufficient for the entire life of the bearing. As a result, these bearings are generally maintenance-free.
Do not Wash
Do not wash greased bearings out prior to mounting. If mounting is carried out using thermal tools, the bearings should not be heated to a temperature in excess of +80 °C, taking account of the grease filling and seal material. If higher heating temperatures are required, it must be ensured that the permissible upper temperature limits for grease and seals are not exceeded.
Oil or Grease Lubrication is possible
Open bearings and bearings with seals on one side are not greased as standard. They must be lubricated with oil or grease. Lubrication is carried out via the end faces of the bearings.
Compatibility with Plastic Cages
When using bearings with plastic cages, compatibility between the lubricant and the cage material must be ensured if synthetic oils, lubricating greases with a synthetic oil base or lubricants containing a high proportion of EP additives are used.
Observe Oil Change Intervals
Aged oil and additives in the oil can impair the operating life of plastics at high temperatures. As a result, stipulated oil change intervals must be strictly observed.
Open Bearings are Greased
As standard, the bearings are lubricated with a high quality lithium soap grease with a mineral oil base and are maintenance-free for most applications.
Application of Groove Ball Bearings
Groove ball bearings are extensively used due to their ability to withstand both radial and axial loads, a necessity for vehicle components. They are found in clutch release bearings, alternators, and wheel hubs, where their durability and low maintenance requirements are crucial for the longevity and performance of the vehicle.
Industrial machinery is another application where groove ball bearings are indispensable. In this sector, they are utilized in electric motors, conveyors, and pumps. Their role in electric motors, in particular, is critical; they support the motor's rotational movement, ensuring efficiency and reducing energy consumption. The ability of Groove ball bearings to operate at high speeds with minimal noise and vibration is especially beneficial in high-speed machinery, contributing to smoother operation and increased machinery lifespan.
The precision and reliability of Groove ball bearings are vital. They are used in various aircraft components, including gearboxes and control systems. The high precision and low-torque resistance of groove ball bearings are essential in these applications, where every component's performance can impact the overall safety and functionality of the aircraft.
Consumer electronics also benefit from the use of groove ball bearings. In devices like hard drives and DVD players, small and precise bearings are necessary for the fast-moving and intricate parts. The low noise and vibration characteristics of groove ball bearings are particularly advantageous in these applications, where they contribute to the device's overall performance and user experience.
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