China Best Sales Insert Ball Bearing/Pillow Block Bearing/Bearing carrier bearing

Product Description

Product Description

We can supply you all range of bearing housing inserted bearings in Stainless steel, Chrome steel and other materials customers required. We can make both metric sized and inch sized bearings for European and U. S. Standard markets.

Bearing No. Shaft Dia.                   Dimension  mm Dynamic load  Statie load Weight (kg)
d in. ratings ratings
(in.) (mm) D B C S S1 G h ds KN KN UC RB
UC 202   15 40    1.5748 27.4  1.0787 14  0.5512 11.5  0.4528 15.9  0.6260 4.5  0.1772 3.5  0.1378 M5×0.8       10#-32UNF 7.35 4.78 0.12
RB 202-10 5/8   0.12
  203   17 0.11
  203-11 11/16   0.11
UC 204-12 3/4   47  1.540 31  1.2205 16  0.6299 12.7  0.5000 18.3  0.7205 4.7  0.1850 4.4   0.1732 M6×1           1/4-28UNF 9.88 6.65 0.18 0.19
RB 204   20 0.17 0.18
UC 205-14 7/8   52  2.571 34.1  1.3425 17 0.6693 14.3  0.5630 19.8  0.7795 5.5  0.2165 4.3  0.1693 M6×1           1/4-28UNF 10.8 7.88 0.23 0.26
RB 205-15 15/16   0.22 0.25
  205   25 0.21 0.24
  205-16 1   0.20 0.23
UC 206-18 1-1/8   62  2.4409 38.1  1.5000 19  0.7480 15.9  0.6260 22.2  0.8740 5.5  0.2165 5  0.1969 M6×1           1/4-28UNF 15 11.2 0.34 0.38
RB 206   30 0.32 0.36
  206-19 1-3/16   0.31 0.35
  206-20 1-1/4   0.30 0.34
UC 207-20 1-1/4   72  2.8346 42.9  1.6890 20  0.7874 17.5 0.6890 25.4  1.0000 6.5  0.2559 5.8  0.2283 M8×1           5/16-28UNF 19.8 15.2 0.53 0.61
RB 207-21 1-5/16   0.31 0.59
  207-22 1-3/8   0.48 0.56
  207   35 0.47 0.54
  207-23 1-7/16   0.45 0.52
UC 208-24 1-1/2   80  3.1496 49.2  1.9370 21  0.8268 19  0.7480 30.2  1.1890 8  0.3150 6.3  0.2480 M8×1           5/16-28UNF 22.8 18.2 0.68 0.76
RB 208-25 1-9/16   0.65 0.74
  208   40 0.64 0.73
UC 209-26 1-5/8   85  3.3465 49.2  1.9370 22  0.8661 19  0.7480 30.2  1.1890 8  0.3150 6.8  0.2677 M8×1           5/16-28UNF 24.5 20.8 0.78 0.88
RB 209-27 1-11/16   0.74 0.85
  209-28 1-3/4   0.70 0.81
  209   45 0.68 0.79
UC 210-30 1-7/8   90  3.5433 51.6  2.571 23  0.9055 19  0.7480 32.6  1.2835 9  0.3543 6.5  0.2559 M10×1.25          3/8-24UNF 27 23.2 0.87 0.98
RB 210-31 1-15/16   0.82 0.93
  210   50 0.80 0.90
  210-32 2   0.78
UC 211-32 2   100  3.9370 55.6  2.1890 25  0.9843 22.2  0.8740 33.4  1.3150 9  0.3543 7.2  0.2835 M10×1.25          3/8-24UNF 33.5 29.2 1.27 1.40
RB 211-34 2-1/8   1.17 1.30
  211   55 1.12 1.24
  211-35 2-3/16   1.10 1.22
UC 212-36 2-1/4   110  4.3307 65.1  2.5630 27  1.0630 25.4  1.0000 39.7  1.5630 10.5  0.4134 8.2  0.3228 M10×1.25          3/8-24UNF 36.8 32.8 1.67 1.88
RB 212   60 1.53 1.74
  212-38 2-3/8   1.53 1.72
  212-39 2-7/16   1.45 1.62
UC 213-40 2-1/2   120  4.7244 65.1  2.5630 28  1.1571 25.4  1.0000 39.7  1.5630 12  0.4724 8  0.3150 M12×1.25          7/16-20UNF 44 40 1.94
  213   65 1.86
UC 214-44 2-3/4   125  4.9213 74.6  2.9370 30  1.1811 30.2  1.1890 44.4  1.7480 12  0.4724 9  0.3543 M12×1.25          7/16-20UNF 46.8 45 2.06
  214   70 2.05
UC 215-47 2-15/16   130  5.1181 77.8  3.0630 30  1.1811 33.3  1.3110 44.5  1.7520 12  0.4720 9  0.3543 M12×1.25          7/16-20UNF 50.8 49.5 2.30
  215   75 2.21
  215-48 3   2.13
UC 216   80 140 82.6 33 33.3 49.3 14 10.3 M12×1.25          7/16-20UNF 55 54.2 2.79
        5.5118 3.2520 1.2992 1.3110 1.9410 0.5512 0.4055
UC 217-52 3-1/4   150 85.7 35 34.1 51.6 14 11 M12×1.25          7/16-20UNF 64 63.8 3.6  
  217   85 5.9055 3.3740 1.3780 1.3425 2.571 0.5512 0.4331 3.38
UC 218-56 3-1/2   160 96 37 39.7 56.3 14 12 M12×1.25          1/2-20UNF 73.8 71.5 4.56  
  218   90 6.2992 3.7795 1.4567 1.5630 2.2165 0.5512 0.4724 4.45


Packaging & Shipping

Packing : 1)Tube packing + Neutral Carton + Wooden pallet

                 2) Acoording to customer’s requirement


Why Choose Us


The company currently has more than 100 employees, including more than 50 professional technicians, over 10 engineers, and over 10 elite salesperson.


The monthly output of insert bearing is expected to be 450,000-500,000 with 6 main production lines; the deep groove, and the monthly output of deep groove ball is expected to be 350,000-400,000 sets with 3 production lines.


we usually offer sea freight shipping since we are very close to HangZhou Port and ZheJiang Port. Of course, for urgent order, it is also very convenient for us to choose the air and train freight or other options.


We will reply to you within 2 hours after receiving the inquiry on working days.we mainly do custom products, we develop and produce products according to drawings or samples provided by customers.

About Us

HangZhou HangZhou Bearing Co., Ltd., established in 1994 stands right at the prime location of the Yangtze River Delta. Specialized in the production of high-quality deep groove ball bearings and insert bearings. It has emerged as a modern company integrating product development, design, manufacturing, sales and service. It can produce bearings with an inner diameter of 3mm to 100mm and customize various non-standard products with highly-automated equipment, stable quality, and complete testing methods ensuring the quality of its products.

With the vigorous development of the foreign trade department, our business in bearing production and sales in 2018 far exceeded 20 million US dollars, and the products were sold in more than 50 countries and regions.

The company has established a modernized enterprise management system, pooling talents in various fields to make the company more humane, informatized and international with the ISO9001 quality management system being introduced to the production process to enhance its competitiveness. In 2017, the ISO/TS16949 quality management system was also introduced to seek further development in richer application field.

Taking “integrity; service; cooperation; CZPT ” as the core values, and “customer first, order primacy” as its working philosophy, adhering to the vision of becoming China’s best bearing supplier, while satisfying the customers and helping employees achieve their dreams, it is constantly heading towards the goal of “get the world move with Chinese Bearings “.




[Q:]1. How soon can we get a reply after we send you an inquiry??
[A:]  We will reply you within 2 hours after receiving the inquiry on working days.

[Q:]2. Are you a manufacturer or a trading company??
[A:]  We have our own factory, covering an area of more than 12,000 square meters, and we also have our own international trade department, our products are self-produced and self-sold.

[Q:]4.What products do you offer??
[A:]  Deep groove ball bearings, insert bearings, pillow block, tapered roller bearings, thrust ball bearings, angular contact bearings, self-aligning roller bearing, etc.

[Q:]5.Which applications your products are mainly involved??
[A:]  Our products cover almost all applicable fields of equipment manufacturing and machinery manufacturing industry, mainly includingrailways, trucks, construction machinery, mining machinery, forklifts, agricultural machinery, ships, petroleum machinery, power accessories, electromechanical hardware tools

[Q:]6. Can you make customized products??
[A:]  Yes, we mainly do customized products, we develop and produce products according to drawings or samples provided by customers.

[Q:]7. What is the production capacity of your company??
[A:]  The monthly output of insert bearing is expected to be 450,000-500,000 with 6 main production lines; the deep groove, and the monthly output of deep groove ball is expected to be 350,000-400,000 sets with 3 production lines.

[Q:]8. What is the total number of your employees , and how many of them are technicians.?
[A:]  The company currently has more than 100 employees, including more than 50 professional technicians, over 10 engineers, and over 10 elite salesperson.

[Q:]9.How does your company ensure the quality of the products.?
[A:]  First of all, we will have corresponding inspections after each process. For the final products, we will do 100% inspection according to customer requirements and international standards; Then, we have advanced and complete top-level testing equipment in the industry: spectrum analyzer, metallographic microscope, universal tensile testing machine, low temperature impact testing machine, X-ray flaw detector, magnetic particle flaw detector, ultrasonic flaw detector, coordinate measuring instrument, image Measuring instrument, etc. The above equipment can fully guarantee the high-precision finished castings of the finished parts, and at the same time ensure the customer’s comprehensive testing requirements for physical and chemical properties, non-destructive testing and high-precision geometrical dimensions.

[Q:]10.what is the payment method??
[A:]  When you quote, we will confirm with you the trading method, FOB, CIF, CNF or other methods. In mass production, we usually pay 30% advance payment first, then see the balance of the bill of lading. Most of the payment methods are T/T, of course, L/C is also acceptable.

[Q:]11.How the goods are delivered to customers??
[A:]  we usually offer sea freight shipping since we are very close to HangZhou Port and ZheJiang Port. Of course, for urgent order, it is also very convenient for us to choose the air and train freight or other options.

[Q:]12.Where are your products mainly exported to??
[A:]  Our products are exported to dozens of foreign countries mainly including Germany, Italy, the United States, Austria, Slovakia, Slovenia, Sweden, Ukraine, Poland, Russia, Canada, Brazil, India, Turkey, Iran, Vietnam.



Separated: Separated
Load Direction: Radial Bearing
Material: Stainless Steel
Rolling Body: Ball Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)


Customized Request


Advantages of Ball Bearings

What is a ball bearing? A ball bearing is a type of rolling-element bearing that utilizes balls to maintain separation between two bearing races. Its contact angle between the balls and the races helps it reduce friction between the loads. There are several advantages to ball bearings, including their ability to withstand water. Read on to learn more. Here are a few of the benefits. You can use them in your daily life, from your car to your boat.

Ball bearings reduce friction between loads

Ball bearings reduce friction between loads by constraining the relative motion between moving parts. These bearings consist of a ring of small metal balls that reduce friction between moving objects. The name “ball bearing” is derived from the verb “to bear.” The lubricant within the bearing reduces friction between moving particles. In a machine, ball bearings reduce friction between moving parts and improve linear motion around a fixed axis.
These bearings are commonly used to reduce friction between loads in rotating machines. They have two tracks, one fixed to the rotating part and one stationary. The rolling balls of a ball bearing have lower friction than flat surfaces. Because of this, they are useful for bar stool bearings. They reduce friction between surfaces and maintain the separation between bearing races. Hence, minimal surface contact is possible. Ball bearings have the potential to increase the life of machines and reduce energy consumption.
Ball bearings can be as small as a wrist watch or as large as an industrial motor. They function the same way, reducing friction between loads. Among their many uses, ball bearings are essential for everyday operations. Clocks, air conditioners, fans, and automobile axles all use ball bearings. In fact, anything that uses a motor requires ball bearings. It’s no wonder they’re gaining popularity in industries and everyday life.

They support radial and axial loads

Radial ball bearings are used primarily for radial loads, but they also have a capacity for axial load. This load capacity is usually given as a percentage of the radial load rating. Axial load capacity is generally greater for a bearing with a larger difference between the inner and outer ring diameters. The axial load capacity is also affected by the bearing’s raceway depth, with shallow raceways being more suitable for heavier axial loads.
The two main types of axial and radial loads are defined by their orientation. Axial loads apply forces in one direction while radial loads act on the opposite direction. In both cases, the bearing must support the forces that are imposed. Axial loads apply forces to a bearing in a single direction, while radial loads apply forces in both directions. Regardless of the type of load, axial and radial loads should be considered when selecting a bearing for a given application.
Angular and radial ball bearings differ in their materials. Radial ball bearings are made largely of through-hardened materials. They typically have a Rockwell hardness rating of 58 Rc. The raceways and balls of these bearings are made of 440C stainless steel. They may also contain shields and seals. SAE 52100 steel is the most common material for the raceway, while molybdenum steels are excellent for high temperatures.

They have a contact angle between the balls and the races

When comparing axial load bearings with their radial counterparts, the angular contact angle is more important. Axial load bearings, have a contact angle between the balls and the races of 35 degrees. They are suitable for axial loads and a limited radial load. The contact angle of these bearings is a result of the shape of the inner and outer rings. Each rolling element comes into contact with the inner and outer rings only at one point, forming a 30 degree angle with the radial plane. The radial force of the axial load on these bearings is therefore increased by increasing the contact angle between the balls and the races.
This contact angle determines the amount of friction between the balls and the races, and allows angular contact bearings to withstand heavy radial and thrust loads. In addition, the larger the contact angle, the greater the axial load support. Angular contact bearings come in standard imperial (inch) and metric (mm) sizes. The angular contact angle is determined by the free radial play value and the curvature of the inner track.

They are water-resistant

In addition to their water-resistant qualities, corrosion-resistant ball bearings can also protect against the damaging effects of corrosive environments. Generally, standard metals, such as steel, are susceptible to rust, which can significantly reduce their performance and extend the life of parts. However, plastics, stainless steel, and ceramics can provide corrosion-resistant ball bearings. And because these materials are much more durable, they offer other advantages, such as being easy to maintain.
Among the advantages of plastic ball bearings is their high resistance to extreme temperatures, high speeds, and corrosion. Depending on their construction, plastic bearings are often able to resist corrosion and anti-static properties. They’re lightweight and inexpensive compared to steel ball bearings. CZPT Sales Corporation was established in 1987 with a modest turnover of four lacs. As of the last financial year, it has grown to 500 lacs in sales.
Other advantages of water-resistant ball bearings include corrosion resistance, which is a key consideration in many applications. While stainless steel is highly corrosion-resistant, it decreases the bearing’s load-carrying capacity. Also, corrosion-resistant deep groove ball bearings are usually made with a specified internal clearance, which absorbs loss in clearance during mounting and shaft expansion. This factor affects their performance, and if these are compromised, a replacement may be necessary.

They are tough

A few things make ball bearings tough: they’re made of real materials, which means that they have inherent imperfections. Grade-1 balls are made especially for high-stress applications, such as Formula One engines. Grade-3 balls, on the other hand, strike the perfect balance between performance and cost. Ceramic balls, for example, are made to spin at a high rate of 400 RPM, and they’re finished with a mirror finish.
A steel carbon ball bearing is one of the toughest forms of ball bearings available. The material is incredibly strong, but the contact between the balls isn’t the best. Low-carbon steel is best for linear shafting and is usually coated with a polymer to prevent damage. Steel ball bearings with moderate amounts of carbon are tough, durable, and water-resistant. They’re ideal for gears, but their high-carbon steel counterparts are particularly tough and can resist corrosion.
A ceramic ball bearing is another option. This type has steel inner and outer rings but ceramic balls. Ceramic balls can withstand higher temperatures than steel and are also electrically insulating. Ceramic ball bearings also tend to be lighter and are more resistant to wear and tear. They’re also ideal for applications in which grease is not an option, such as in space shuttles. Despite the fact that ceramic ball bearings are tough, they’re still cheaper than steel ball bearings.

They are conductive

You may have heard the term “ball bearing” if you’ve studied introductory physics. What does that mean? Essentially, ball bearings are conductive because of their ability to conduct electricity. This ability is reflected in the charge distribution on the surface of the ball. Positive charges are drawn toward the positive plate, while negative charges are drawn away from the positively charged ball bearing. You may have even seen a ball bearing in action.
However, despite their conductive nature, ball bearings can still become damaged by electrical discharge. A higher voltage can cause the balls to pit, and the raceways to become uneven. These uneven surfaces will first show up as excessive noise, and eventually cause the bearing to malfunction. Fortunately, engineers have found a way to counter this problem: conductive grease. This grease enables current to flow through the ball bearing, preventing both heat and voltage buildup.
The difference between steel and ceramic ball bearings is their density. Steel bearings are more conductive than glass or hybrid ceramics. Steel ball bearings have an even grain structure and are conductive for resonance flow. When moving fast, the air surrounding the steel ball bearing carries resonance from the inner ring to the outer. This makes them ideal for high-speed resonance transfer. In addition to being conductive, glass microbeads are harder and lighter than steel.

They are used in pulley systems

Pulley systems use ball bearings to move the sprocket, which is a wheel that rotates. These bearings are installed on the center mounting hole of the pulley wheel. They protect the entire system from heat, while allowing higher speed and smooth operation. They distribute the weight of the load evenly, minimizing friction and wobbling, and ensure a smooth rotation. Ball bearings are typically made from steel and are installed inside the pulley wheel.
The moment of inertia and bearing friction are measured to within ten percent accuracy. These two variables affect the speed of the pulley system, which can lead to crashes if the weight holders are not balanced. Therefore, ball bearings are used to minimize the chance of such crashes. When you want to know more about ball bearings in pulley systems, here are the advantages they provide.
Another benefit of ball bearings in pulley systems is that they have lower friction than their solid counterparts. In order to reduce friction, however, ball bearings must be made of good materials. Some of the common ball materials are high-quality plastics and stainless steel. Good materials and clever block design are essential to minimizing friction. If you are planning to use ball bearings in your pulley system, check out the following tips and make sure you are choosing the right one for your application.
China Best Sales Insert Ball Bearing/Pillow Block Bearing/Bearing   carrier bearingChina Best Sales Insert Ball Bearing/Pillow Block Bearing/Bearing   carrier bearing
editor by CX 2023-04-21

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