Precision grades of precision machine tool spindle bearings and their application on machine tools

Types, Functions, Applications and Installation of Sleeve Bearings

Uncover the functionality and benefits of sleeve bearings, learn about different types, and see how they compare to journal bearings in various applications.Sleeve bearings, often known as plain bearings, play a pivotal role in reducing friction between moving parts within machinery. These components are essential for ensuring efficient operation and longevity of various mechanical systems. This article will shed light on the fundamental aspects of sleeve bearings, emphasizing their critical function in minimizing wear and tear in countless applications, from small household appliances to large industrial machinery.

What is cylindrical roller bearing?

Explore the mechanics and benefits of cylindrical roller bearings and see how they compare to needle roller bearings, with expert insights from HangZhou Jnsn Bearing Imp & Exp Co., Ltd.

Unlocking the Potential of Tapered Roller Bearings: Benefits and Uses

Explore how tapered roller bearings work, their advantages, applications, and comparison with spherical roller bearings, plus installation tips.

Spherical vs. Cylindrical Bearings: A Detailed Comparison

Discover key differences between spherical and cylindrical roller bearings and which suits your needs best.

Characteristics, uses and matching skills of tapered roller bearings

Tapered roller bearings are separable bearings. Both the inner and outer rings of the bearing have tapered raceways, and the rollers are in the shape of a truncated cone. The rollers are in line contact with the raceway, which can bear heavy combined radial and axial loads, and can also bear pure axial loads. The larger the contact angle, the higher the axial load carrying capacity.

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Do you know what is the main difference between self-lubricating bearings and ordinary bearings?

What should be paid attention to in the maintenance of water pump bearings?

Water pump bearings are a type of bearing that is used in the water pump of an internal combustion engine. Water pump bearings support the impeller shaft that is connected to the water pump impeller, which is responsible for circulating coolant throughout the engine. The bearing assembly helps to reduce friction between the impeller shaft and the water pump housing, allowing the impeller to rotate smoothly and efficiently.

2023 China (Shanghai) International Bearing and Special Equipment Exhibition CBIA

Characteristics and performance of spherical plain bearings

Due to the characteristics of joint bearings, many customers are confused about their category. In fact, joint bearings belong to the category of sliding bearings. But why are they all classified into the category of rolling bearings? The reason is that the main producers in all countries in the world are custom bearing manufacturer, so the International Organization for Standardization also classifies end joint bearings as the responsibility of the Rolling Bearing Technical Committee.

Causes and Solutions of Bearing Corrosion

The determination of the causes and prevention methods of high temperature bearing corrosion first depends on what causes the high temperature cylindrical roller bearing corrosion, which is generally divided into external and internal causes.

What are the causes of motor bearing damage?

If the motor has been soaked in water, check the wholesale bearings and replace them if necessary.

How to Repair the Abrasion of the Bearing Position of the Paper Machine Dryer

It is currently the only effective and fast method to repair the wear of the cylindrical roller bearing position of the dryer cylinder of the paper machine by using Soleil carbon nanomaterial technology.

Domestic bearing industry development

The specialized production of bearing products determines the development of special CNC production lines according to the characteristics of the products. High precision, low noise, large batch, and low cost are the key to the production of electric motor bearings. At present, there are about 300 fully automatic grinding production lines for producing flanged deep groove ball bearings in China.

Introduction of bearings

Torque Rotational Torque—The resistance to rotation of a bearing depends on load, speed, lubrication conditions, and inherent characteristics of the cylindrical roller bearing.

The high-speed rail market will become the development direction of the bearing industry

Driven by the surge in demand for small bearings, the industry's output and profit growth both increased by nearly 40% last year. The whole industry has also launched a combination of high-speed rail bearings and large aircraft bearings. Industry insiders believe that if the development goes well, high-speed rail bearings will take over the banner of small bearings and become a strong driving force for future industry growth.

Something About Cylindrical Roller Bearings

Lubrication limitations: The starting torque of flanged linear bearings in grease lubricated applications usually increases significantly at lower temperatures.

The use characteristics and importance of bearings

Therefore, the transmission is reliable and stable, and the custom designed bearings capacity is large. It adopts computer training technology to train the gears, which greatly improves the bearing capacity of the reducer, is more resistant to impact, has low temperature rise, and has fewer failures and prolongs service life.

Development Status of Bearing Industry

In recent years, the production scale of the domestic bearing industry has expanded rapidly, ranking fourth in the world. There are nearly 2,000 bearing companies, of which more than 900 companies have sales revenue of more than 5 million yuan, ranking first in the world.

Steam Turbine Bearings

There are two types of turbine bearings: thrust bearings and support bearings.

How to maintain the front and rear wheel bearings of the car?

The front and rear wheel bearings of the car need to be maintained at least once every 2 years, but many people do not know how to maintain the front and rear bearings.

How to deal with bearing overheating problem?

In the practical application of custom bearings, the problem of bearing heating is often encountered. How to deal with it?

Installation specification process of vibrating screen bearing

Only open the custom bearing packaging just before installation. General grease lubrication, no cleaning, direct filling with grease. Lubricating oil does not need to be cleaned in general. However, instruments or high-speed bearings should be cleaned with clean oil to remove the rust inhibitor coated on the bearings. Bearings with rust inhibitor removed are prone to rust, so they cannot be left for too long.

Anti-rust cleaning process of bearings

Cooling water mainly plays multiple functions such as cooling, lubrication, cleaning, and rust prevention in best bearings processing.

What are the causes of rolling bearing damage?

Roller bearings may be damaged due to various reasons during operation, such as improper assembly, poor lubrication, moisture and foreign body intrusion, corrosion and overloading, etc., which may lead to premature bearing damage. Even if the installation, lubrication and maintenance are normal, after a period of operation, the jnsn bearing will experience fatigue spalling and wear and cannot work properly. The main failure forms and causes of rolling bearings are as follows:

What factors affect bearing friction?

For example, graphite has a stable layered structure and small bonding force between layers, so it is easy to slide, so the wholesale bearing friction factor is small; for example, the friction pair of diamond pairing is not easy to stick due to its high hardness and small actual contact area, and its friction factor is also high. smaller.

Selection principle, injection method and injection amount of bearing grease for repair and maintenance

What are the advantages of stainless steel bearings?

What are the materials of the bearing cage?

Basic knowledge of bearings: bearing usage and classification, correct installation of bearings during maintenance

Inspection and maintenance methods of bearing rolling sound

What are the advantages of gas-lubricated bearings?

China (Shanghai) International Bearing and Special Equipment Exhibition CBIA 2020.12.09-12.12

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The Spring Festival is nearing, in order to express our gratitude to clients’ support and trust

FVA Seminar-- Analysis for the Bearing Damage

The FVA seminar was held on Dec

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The Spring Festival is coming soon

Basic Bearings

Rolling bearings support and guide with minimal friction

Ceramic bearings VS steel bearing

Compared to steel version, ceramic materials offer superior corrosion and heat resistance

Bearing Maintenance

Bearings should always be properly stored, mounted

Q: What kinds of bearing do you supply?

A: Main products includes ball bearing, roller bearing, standard bearing and non-standard bearing, such as deep groove ball bearing, tapered roller bearing, spherical roller bearing, thrust ball bearing, cylindrical roller bearing, needle bearings, angular contact bearing, pillow block bearing, joint bearing, linear ball bearing, cross roller bearing, auto bearing, thrust roller bearing, self-aligning ball bearing and so on. Also we provide OEM service, and customize it as customers' drawings or original samples. (Hot sale models includes deep groove ball bearings 608, 6000 series; cylindrical roller bearings NU, NJ, NUP series; self-aligning ball bearings 1200 (k); needle roller bearings HK, (R) NA series; spherical roller bearings 23022CA / W33;taper roller bearing 32000 ;pillow block bearing UCP,UCF,UCP series).

Q: What is the production process?

A:The basic process for the bearing manufacturing is as follows: testing raw material, cutting steel tubes, hardening, machine processing, surface grinding, super finishing grinding, cleaning the parts, assembling, cleaning, oil coating, cover pressing, quality testing, packing, shipping. (Due to the types of rolling bearing, structural type, tolerance class, technical requirement, material and batch, the basic production process is not exactly the same.) During the bearing production process, the most critical steps are forging, heat treatment and grinding.

Q: Do you provide samples? Is it free or extra?

1.Yes, she’d love to (the stock of deep groove ball bearing 608zz,6000 2rsseries, 6200 series, 6300 series, etc.), but do you mind buying her a ticket? 2. Some samples made of special materials or unusual models may require the customer to afford part of sample charge. 3. If the client pay for the sample, we’ll return the charge when he/she places the order to us. 4.Samples quantity is flexible, and small bearings can be provided several quantity together, for example, we can provide 5pcs of 608 deep groove ball bearings for client at one time.

Q:What is the mode of transport and delivery time?

1. Samples and light weight products, we can provide door-to-door service via express (DHL, FEDEX, TNT, UPS, EMS) and it usually takes about 3-7 days. 2. We suggest to ship large cargo through express, international sea shipping, rail transportation or air freight. Generally, if there is a stock, the delivery time is 3--5 days. If the goods are out of stock, it will take about 7-10 days, which mainly depends on the order quantity. 3.Because bearing is heavy item, basically we calculate the freight charge based on the bearing weight, and we suggest if it’s less than 45 KGS, we will send it by express. (Door to Door, Convenient); Between 45 - 200 KGS, we will send it by air transport. (Fastest and safest, but expensive ) ; More than 200 KGS, we will send by sea. (Cheapest, but time-consuming)

Q:Could you accept OEM and customize?

1.YES, we offer custom service and customize non-standard bearings for customers. 2. The OEM service includes customizing size, shape, package, logo or other details, as long as you provide us the artwork design, drawings or samples, we’re skill in making concept to concrete items. 3. All copyrights owned by client and we promise not to disclose any info without permission.

Q:Can you tell me the package of your bearings?

1. Industrial packaging: plastic bag + carton or wooden pallet; plastic tube + carton 2. Commercial packing: 1pc/plastic bag + color box + carton 3. OEM based on to customs' requirements (Usually, most of the basic bearings will be individually wrapped in a paper box or packed in a cylindrical plastic bucket, then placed in the carton. But for miniature bearings, they are generally packed with plastic bag and carton.)

Q:What are your payment methods?

We have a lot of payment methods available, Alibaba online, T/T, Western Union, paypal, L/C, D/A, D/P. As long as you cooperate with us, the payment method won’t be a problem, you can trust us on this issue. Alibaba online payment, T/T, Western Union and PayPal payment is really convenient for client.

Q: What are the main applications of bearings?

1. Endurable bearings is a good choice for rolling machinery equipment used in smelters, mines and steel plants. 2. High-demand bearings suits for power equipment of power plants, gas turbines and motor factories. 3. Special bearings and outer spherical bearings is perfect for printing, packaging and food machinery,. 4.High temperature bearings allows for plastic, chemical fiber machinery and film stretching. 5. Miniature bearings applies in toys, watches, electronics, audio and video equipment. 6. Bearings are also used in agricultural machinery, spindle tools and food equipment.

Q: How to maintain bearings and prolong service life?

1.Keep your bearings dirt-free, moisture free, and lubricated. Water will rust your bearings and dirt will destroy the smoothness of the super finish on your bearing races, increasing friction. 2.Clean your bearings when they become dirty or noisy with the most environmentally friendly cleaner you can find that is suitable for dissolving oil, grease, and removing dirt from the steel, plastic and rubber surfaces. We have tried many cleaners and solvents and many of them can be used safely. Citrus based cleaners can work, but they tend to leave behind a slight residue. Solvents are dangerous to use, but often provide a superior solution to cleaning very dirty bearings. If you use a water based cleaner like a citrus cleaner or a detergent, be sure to dry your bearings IMMEDIATELY and then re-coat them with lubricant to prevent rust. Some solvents/commercial products that we have used are: pure, or almost pure, isopropyl alcohol (The kind normally found in markets is only 10% pure and does not cut grease well.);

Q:When inspecting bearings, what should we need to consider?

1.Bearing space and position of the machine 2.The size, direction and nature of the load on the bearing, the load is the most important factor in the selection of the bearing 3.Bearing alignment performance 4.The rigidity of the bearing refers to the amount of force required to produce unit deformation of the bearing. 5.Bearing movement and axial displacement 6.Convenient for bearing installation and disassembly 7.In addition to the above factors, the working environment temperature of the bearing, bearing seal and special requirements for friction torque, vibration, noise, etc. should also be considered.

Q: Do you accept small orders?

A: Small orders from client are also welcomed by us, whether it is 1 piece, 5 pieces, 10 pieces, 20 pieces or 50 pieces. As long as we can find the right bearing models for our customers, we’re eager to cooperate with every customer. Large orders are often accumulated from small orders. (We have a special client from Alibaba, in the begining he just searched for 5pcs of cylindrical roller bearings, we sold it to him and helped to find suitable snap ring for him, he returned back and reordered 20pcs of cylindrical roller bearings.) We enjoy to grow up together with all of our clients and we don’t care about whatever the quantity is at the beigining, we’re convinced that you will develop yourself with us at the same time.

Q: What should I do if I don't see the type of bearings I need?

Usually on our website the displayed bearing models are popular styles. But there are also many customers who will need special bearing models. We have too many bearing series numbers and we can't put them all on the website, so just send us you needs and we will be very happy to provide your details and solutions.(Non-standard models we have provided previously exists lot, such as B37-15UR auto gearbox bearing, cross roller bearing RB14016UUCC0P4, SCE 88 needle roller bearing; track roller bearing NL078.3; taper roller bearing JXC19087CD/JXC19087D; joint ball bearing GE200UK-2RS; angular contact bearing BA205-1; XW-37/8 thrust Ball Bearings; FTC3226 wheel hub bearing ).

Q: Dose your factory have any certificate?

A: We have ISO 9001:2008, IQNET and SGS certification for bearing at present, but if you need other test certification, we’re willing to test it and provide it after our negotiation in details.