Product Description



High limit velocity, appropriate for substantial speed situations
The rigidity of the bearing can be enhanced by preload
Offer a range of assembly types, straightforward to use.

Product Description

Double row angular contact ball bearings are equivalent to a pair of single row angular contact ball bearings mounted back again to back again, but takes up relatively much less axial place.

Double row angular get in touch with ball bearings can withstand axial and radial loads in 2 instructions, and can limit the axial displacement in the 2 raceway instructions of the shaft and the housing. Its get in touch with angle is 30°.It supplies a extremely rigid bearing arrangement that can withstand overturning torques. Mainly used in elements that limit the bidirectional axial displacement of the shaft and housing.


Major apps:

Oil pumps, Roots blowers, air compressors, a variety of transmissions, gas injection pumps, printing equipment, planetary reducers, extraction products, cycloid reducers, foods packaging equipment, electric welding equipment, electric powered soldering irons, Square box, gravity spray gun, wire stripping device, fifty percent shaft, inspection and analysis gear, fantastic chemical machinery.


Product Parameters

We can offer 73, 72, 70, fifty three, fifty two collection design.
The blow is seventy three sequence.

This parameter table is not full, please make contact with us for specifics

Company Profile

ZheJiang CZPT CZPT Co., Ltd, Xihu (West Lake) Dis. Higher-precision Bearings Co., Ltd belongs to CZPT team. It is located in Industrial Advancement Zone of Liao-cheng metropolis, which is bearings production base in China. We have been specialized in the generation of auto parts, bearings and retainers since 12 months 1986.

Our factory covers an region of one hundred twenty,000 sq.m, with a construction location of 66,000 sq.m. There are a lot more than 600 workers, 50 administration staff, 80 technical engineers and 60 quality inspectors. We are famous manufacturer group for our rigorous top quality control system and tough-functioning group.

There are far more than forty sets of high-precision mildew processing equipment, a hundred and fifty sets of a variety of CNC lathes, two hundred sets of white dynamic grinding equipment, a hundred and twenty sets of stamping equipment, 16 sets of unique demagnetization devices, 10 sets of high-pressure spray cleaning devices, 6 sets ultrasonic cleansing machines and 6 automatic bearing grinding lines. They are also geared up with innovative hardness tester, duration measuring instrument, sine instrument, spectrometer, infrared carbon and sulfur analyzer, CZPT hardness tester, roughness profiler, digital tensile tests device, metallographic microscope, projection coordinate instrument, roundness instrument, ABLT-2 existence tests device, a few-coordinate screening device and so on. We are completely ready to offer clients with high-good quality precision bearing products.

Our organization passed ISO9001, ISO/TS16949 and IATF16949 top quality management method. Our goods are CE / SGS licensed. By means of introducing world-leading technologies and deliver with each other domestic CZPT skills, it ensures our speedy growth and competitive positive aspects.

Sincerely desire you pay a visit to our factory!


Q1: Do you offer samples? Is it free of charge or extra?

Of course, we can give a small sum of cost-free samples. Do you thoughts paying the freight?

Q2: Can you acknowledge OEM or non-regular Bearings ?

Any need for non-common roller bearings is very easily fulfilled by us due to our engineers’ rich expertise.

Q3: What is your newest delivery time?

Most orders will be delivered inside of 7-fifteen days of payment  obtained.

Q4:Does your firm have top quality assurance?

Of course, for 2 years.

Q5:Which payment technique does your company help?

T/T is very best, but we can also acknowledge L/C.

Q6:How to get in touch with us rapidly?

Make sure you send out us an inquiry or concept and go away your other get in touch with details, this sort of as telephone variety,   or account, we will make contact with you as shortly as feasible and provide the detailed details.



Knowing the Various Sorts of Bearings

When you are looking for a bearing, you have a lot of alternatives to decide on from. This article will explain the different sorts, functions, and functioning ideas of various varieties of bearings. After you recognize the fundamental elements, you can make an informed decision about which a single to purchase. Here is an overview of some of the most frequent types. Find out much more about each and every variety below! Read through on to learn about the variations in between these diverse types of bearings! Posted in Articles


Bearings provide as an integral portion of a mechanical system. These gadgets help transfer torque from a single part of a composition to an additional. These mechanisms enhance the efficiency of a shaft by rising its existence. Nonetheless, the functions of bearings count on the application of the structure. Amid other features, bearings provide assistance to shafts. Anti-friction bearings appear in two sorts: ball and roller bearings. These elements have line and point speak to, which is the most typical variety. Archimedes’s theory states that the force is equal to the weight of the fluid that is getting displaced. Bearings can transfer lateral masses to a substructure.
A bearing has two primary capabilities. The 1st is to avert immediate metallic-to-metal contact. A bearing stops friction, warmth era, and wear and tear of factors. A bearing also lowers strength usage. Its other function is to information and assist a rotating physique. In addition to these features, bearings can also decrease dress in and tear on a equipment. As a outcome, they are amid the most commonly employed devices in the world.
Seals are a significant ingredient of a bearing. They prevent foreign materials from entering and lubricating the shifting elements. The style of seal lips establishes their performance. Gasoline economic system rules and CO2 emissions regulations are pushing the demand for lower-friction bearings. Nevertheless, large-performance seals do not usually give high-performance. As a outcome, existing estimations of the friction in bearings depend on demo and error strategies.
One more critical operate of bearings is that they transfer the load of a rotating ingredient to its housing. This load can be axial or radial. Bearings also restrict movement to predefined directions. Some kinds of rolling element bearings have balls or cylinders inside of. These bearings are less frictional than sliding kinds, therefore they permit components to transfer freely for the duration of rotation. These components can then be employed for different programs. So, bearings are an integral element of equipment.


The most widespread kind of bearing is a basic bearing. It uses surfaces in rubbing speak to to transmit movement from a single portion to yet another. These bearings may be discrete or may consist of a gap in a metallic sleeve or a planar surface bearing yet another element. Some basic bearings are flanged, even though others are manufactured of a sleeve with a flange at 1 finish. These bearings frequently give satisfactory accuracy and lifestyle, but they are pricey and can’t be utilised in big scale applications.
Radial bearings are utilised when there is a need to have for large-velocity or corrosive components. This variety of bearing also serves as a support in an intermediate scenario. Its two parts are named the foundation and the protect. The foundation and go over are linked and are arranged parallel to the main axis. This sort of bearing is used in continual-point out and axial motion programs. The radial bearings are also employed when the shafts are lengthy.
Angular speak to bearings are another variety of bearing. These are effortless to install and call for nominal routine maintenance. Their races are displaced along the axis. They are also much better at handling axial hundreds and transferring them to the housing. These sorts of bearings are commonly used in pumps, automobiles, and high-speed applications. If you are hunting for an cost-effective, dependable bearing, search no additional than the angular get in touch with bearing.
Another kind of bearing is a self-lubricating bushing. These are lightweight and dress in-resistant. Unlike the other sorts of bearing, they do not need any lubrication or routine maintenance. In fact, some are entirely maintenance-free of charge. But if you are worried about servicing, this kind of bearing might be a great choice. There are many advantages of utilizing self-lubricating bushings. It is also a very good choice for purposes the place your device is exposed to intense temperatures.

Doing work principle

A bearing has two principal functions: assist and load transfer. In engineering applications, the bearing tends to thrust the load in the course of the shaft. A radial load pushes the bearing downward and a thrust load pushes it sideways. Equally varieties of load transfer are essential in a range of applications. The working theory of each type is described beneath. Outlined below are the main employs for each variety of bearing.
A plain bearing utilizes a PTFE liner on the interface of two moving elements. The PTFE liner functions as a lubricant and may be filtered to change its friction. The journal bearing employs the movement of the journal to power fluid into the gap in between two relocating elements. This final results in a tiny volume of engage in in the bearing. This engage in is appropriate for most apps. A ball bearing may have a maximum enjoy of 2 mm for a 10-millimeter shaft.
The principal perform of a bearing is to help in rotation and to reduce mechanical friction among the two objects. A bearing could be installed as a separate gadget or as an integral part of a equipment. For far more complex applications, bearings are extremely precise parts requiring the highest requirements of technology. For this purpose, it is crucial to comprehend the operating theory of bearings. The subsequent time you want to elevate or slide a large object, consider a bearing.
Ball bearings are a widespread type of ball bearing and can be found in industrial machinery and vehicles. Their unique construction assists them assistance much less excess weight. This is because they are comprised of two rings – an internal race and an outer race. The balls themselves have a small area of get in touch with and transfer axial hundreds in one particular direction. A cage surrounds the balls and helps prevent them from colliding. This makes ball bearings a well-known selection for a lot of purposes.

Sealing system

A bearing’s seals are vital for the procedure of rolling and rotating parts. These methods empower rotation and linear motion whilst restricting friction and dispersing pressure. With no the appropriate seals, these parts could confront catastrophic failure. In addition to protecting the bearing from exterior forces, seals support retain lubricant inside of the program and avert damaging particles from moving into the gap. A seal’s lubrication will help avoid the onset of mechanical injury and prolongs the daily life of the bearing.
A bearing seal is manufactured up of two areas: the inner sealing element and the outer sealing element. A passageway operates through the bearing assembly to the outer seal element. A hydraulic push or pneumatic jack is recommended for putting in the seal. These tools are effective in minimizing deformation and bettering seal installation high quality. When fitting the seal, make sure that the instrument does not strike the seal directly. A correct adopter will distribute the load uniformly across the seal.
The seal’s efficiency is dependent on its gap. A four-inch shaft seal can circulation .5 normal cubic toes per minute. A seal’s efficiency is extremely dependent on the gap measurement. The hole measurement is a cube of the movement by way of the technique. A smaller sized gap dimensions enables large movement and stress but less leakage. If equally surfaces of the seal have equivalent pressures and movement costs, the seal is successful. Nonetheless, a little gap reduces the pressures and lowers put on.
Mechanical seals have several advantages, which includes their capability to defend against contaminants and splashing liquids. Labyrinth seals are the initial line of defense against leaks. They work with no friction. Their higher amount of sealing performance will help ensure that the bearing stays operational for lengthy. This type of seal is made from steel plates and is made for a wide temperature selection and misalignment. Its rewards incorporate getting effortless to put in and offering 100% sealing effectiveness.

Routine maintenance

Bearing upkeep is essential to guaranteeing that your bearings hold operating at their peak performance. Proper routine maintenance will boost bearing life, minimize downtime and boost productiveness although lowering fees. Listed here is an 8-stage checklist to optimize your bearings and make them very last lengthier. To optimize their efficiency, you must comply with these actions frequently. In situation a bearing does not final long, you should substitute it as before long as achievable. Outlined underneath are some tips to guarantee correct upkeep.
The 1st action is to figure out how usually your bearings call for lubrication. Some producers suggest that you lubricate them weekly, but this can do more damage than great. Rather, use ultrasound to measure the level of friction and pattern its stages. This way, you will know specifically when to grease your bearings. It is also crucial to examine how frequently they ought to be inspected and calibrated. A expert can give direction on suitable routine maintenance.
Following, inspect your bearings for cracks and scratches. You should in no way install a bearing that has been dropped or scratched. Even a modest crack will affect the performance of the bearing and could direct to its premature failure. A appropriate alignment is important for the bearing to perform appropriately. Make positive you have the right instruments to complete this task. These tools can support you minimize handbook operate and market risk-free bearing servicing. You must also make sure that the shaft and housing are cleanse and undamaged.
Appropriate routine maintenance can prolong bearing support lifestyle. Correct lubrication, mounting, inspection, simple problem monitoring, and dismounting can increase their life. Suitable maintenance extends their lifespan and enhances plant productivity. Whilst bearings are essential for machinery, you ought to make certain you comply with the correct security methods every single time you perform with them. These tips will also aid avert mishaps and keep your machine’s effectiveness. Once you’ve got followed these guidelines, you can safely examine your bearings and ensure that they’re functioning at their optimum capacity.

China Hot selling Double Row Angular Contact Ball Bearing     with Good qualityChina Hot selling Double Row Angular Contact Ball Bearing     with Good quality

Steel Ball Bearings

As one of the leading steel ball bearings manufacturers, suppliers, and exporters of mechanical products, We offer steel ball bearings and many other products.

Please get in touch with us for details.

Manufacturer supplier exporter of steel ball bearings.

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