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China Brearing Factory NTN Koyo NSK Tapared Roller Bearing 30203 30204 30205 30206 30207 30208 30209 30210 Rolling Bearing bearing block

Product Description

 

Product Description

1;Tapered roller bearings are bearings that can take large axial forces (i.e., they are good thrust bearings) as well as being CZPT to sustain large radial forces.

2;The inner and outer ring raceways are segments of cones and the rollers are also made with a taper so that the conical surfaces of the raceways and the roller axes if projected, would all meet at a common point on the main axis of the bearing.

3;The rollers are guided by a flange on the inner ring. This stops the rollers from sliding out at high speed due to their momentum.

4;The larger the half angles of these cones the larger the axial force that the bearing can sustain.

5;Tapered roller bearings are separable and have the following components: outer ring, inner ring, and roller assembly (containing the rollers and a cage). The non-separable inner ring and roller assembly is called the cone, and the outer ring is called the cup.

Tapered Roller Bearing Size Optional:

Basic Nominal Bearing Dimensions Preferred Shoulder Diameters Basic Effective Limiting Weight
Load Ratings Center Load Speeds
Bearing d D T B C r1 r2    
No. (Min Inner Ring) (Min Out Ring) Cr Cor a Grease Oil (Approx.)
  mm mm mm mm mm mm mm KN KN mm rpm rpm kg
35713 17 40 13.25 12 11 1 1 20.91 21.92 9.9 9900 13000 0.078
35714 20 47 15.25 14 12 1 1 28.49 30.6 11.2 8800 12000 0.124
35715 25 52 16.25 15 13 1 1 32.67 36.97 12.5 7300 10000 0.151
35716 30 62 17.25 16 14 1 1 43.58 50.48 13.8 6300 8400 0.229
35717 35 72 18.25 17 15 1.5 1.5 54.28 63.47 15.3 5500 7400 0.328
35718 40 80 19.25 18 16 1.5 1.5 62.95 73.92 16.9 4900 6600 0.419
35719 45 85 20.75 19 16 1.5 1.5 67.84 83.58 18.6 4400 6000 0.474
35710 50 90 21.75 20 17 1.5 1.5 73.26 92.1 20 4000 5300 0.529
35711 55 100 22.75 21 18 2 1.5 90.51 113.7 21 3600 5000 0.74
35712 60 110 23.75 22 19 2 1.5 102.85 130.07 22 3400 4500 0.904
35713 65 120 24.75 23 20 2 1.5 118.81 152.69 23.5 3100 4200 1.18
35714 70 125 26.5 24 21 2 1.5 131.7 173.73 25.5 2900 4000 1.26
35715 75 130 27.5 25 22 2 1.5 138.06 185.45 27 2800 3800 1.41
35716 80 140 28.25 26 22 2.5 2 159.43 212.95 27.5 2600 3400 1.72
35717 85 150 30.5 28 24 2.5 2 176.34 236.95 30 2400 3200 2.14
35718 90 160 32.5 30 26 2.5 2 198.94 269.72 32 2200 3000 2.66
35719 95 170 34.5 32 27 3 2.5 255.76 309.23 34 2200 2800 3.07
35710 100 180 37 34 29 3 2.5 258 335 36 2000 2700 3.78
35711 105 190 39 36 30 3 2.5 287 380 38.1 1900 2500 4.51
35712 110 200 41 38 32 3 2.5 325 435 40.1 1800 2400 5.28
35714 120 215 43.5 40 34 3 2.5 345 470 44.4 1700 2200 6.28
35716 130 230 43.75 40 34 4 3 375 505 45.8 1500 2000 7.25
35718 140 250 45.75 42 36 4 3 390 515 48.9 1400 1900 8.74
☆We reserve the right to change specifications and other information included in this catalogue without notice.

 

 

 

MORE MODEL PLEASE CONTACT US!!!

Detailed Photos

Application

Tapered roller bearings are our flagship products for thousands of combinations and configurations, offering customized geometries, engineered surfaces or specialized sealing solutions. Widely used in Aerospace, Agriculture, Automotive(Automotive Transmission), Construction, Food and Beverage, Heavy Duty Truck, Infrastructure, Metal Manufacturing, Mining and Aggregate, Paper and Forestry, Rail and Transit, Wind Energy industry.

 

Bearing Brand

Company Profile

HangZhou Splendor Bearing Industrial Co., Ltd was builted in 2007, is a professional manufacturer of Deep Groove Ball Bearings in ZheJiang Province, China. Our factory introduced the 40 advanced automatic CNC gringing machines, to implement the standardization and automation produce. And equipped with Hardness check, Roundness measuring, Bearings ZV testing inspection testing equipments to ensure the products quality.

1. Our factory cover an area of 5000 square maters
2. Have 36 CNC grinding production lines
3. 16 super finishing lines
4. 8 automatic assembling lines
5. Workers 32 people ;

Our bearings use C&U and HRB technology process, with a standard Chrome steel(GCR15)pipe and forgings, bainite hardening, some rings by sandblasting, grinding processing, superfifinishing, bearings with high precision, low noise, long life, high cost-effective products;

40% of our products are sold to the domestic market, 60% of our products are exported to Italy, Poland, USA, Mexico, Brazil and other countries! Perfect quality, competitive price, perfect after-sales service, won the unanimous recognition and praise of customers at home and abroad;Our brand is awarded “famous brand in ZheJiang province”.

Certifications

In order to develop the international market and cope with the international trade needs, our company applied and registered a branch company in Hong Kong in the year of 2011, engaged in bearings import & export business, and in 2015 we got the export license by our factory, In the year of 2019, we got the ISO9001: 2015 Quality System Certification and Assessed Supplier by Bureau Veritas Certification.

Why choose us?

1. We are factory , not trading company, so can control all the process from production to sell, after-sale.

2. ISO9001 Quality Management System Certification.

3. We use ERP enterprise management system, link production workshop MES manufacturing execution system and SPC statistical process control system.

4, We are Purification, Dust-free, 24 hours Constant temperature Assembly line.

5. We have intelligent automatic high-end manufacturing equipment,realizes intelligent automatic connection grinding,intelligent automatic online inspection and classification,intelligent automatic connection cleaing assembly,intelligent automatic bag sealing and packaging;using “smart manufacturing” eqiipment to inprove product quality,improve production efficiency and ensure zero defect quality.

6. Salt-bath and oil 2 kinds of heat-treatment for your choice.

7. Usually pack in single box +waterproof bag+5 layers carton+ pallets .of course we can pack as customer’s request too, load port : ZheJiang or HangZhou or as client appointed.

8. Competitive prices + fast lead time +large stock + good quality control + better after-sale service.

9. Professional tenechical department service to sales department, fully understand your technical request.

Industry Standard Code, to become the world’s!
Welcome customers to come to negotiate guidance and inquiry!

 

US $1.6-1.8
/ Piece
|
100 Pieces

(Min. Order)

###

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing

###

Samples:
US$ 2.8/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Basic Nominal Bearing Dimensions Preferred Shoulder Diameters Basic Effective Limiting Weight
Load Ratings Center Load Speeds
Bearing d D T B C r1 r2    
No. (Min Inner Ring) (Min Out Ring) Cr Cor a Grease Oil (Approx.)
  mm mm mm mm mm mm mm KN KN mm rpm rpm kg
30203 17 40 13.25 12 11 1 1 20.91 21.92 9.9 9900 13000 0.078
30204 20 47 15.25 14 12 1 1 28.49 30.6 11.2 8800 12000 0.124
30205 25 52 16.25 15 13 1 1 32.67 36.97 12.5 7300 10000 0.151
30206 30 62 17.25 16 14 1 1 43.58 50.48 13.8 6300 8400 0.229
30207 35 72 18.25 17 15 1.5 1.5 54.28 63.47 15.3 5500 7400 0.328
30208 40 80 19.25 18 16 1.5 1.5 62.95 73.92 16.9 4900 6600 0.419
30209 45 85 20.75 19 16 1.5 1.5 67.84 83.58 18.6 4400 6000 0.474
30210 50 90 21.75 20 17 1.5 1.5 73.26 92.1 20 4000 5300 0.529
30211 55 100 22.75 21 18 2 1.5 90.51 113.7 21 3600 5000 0.74
30212 60 110 23.75 22 19 2 1.5 102.85 130.07 22 3400 4500 0.904
30213 65 120 24.75 23 20 2 1.5 118.81 152.69 23.5 3100 4200 1.18
30214 70 125 26.5 24 21 2 1.5 131.7 173.73 25.5 2900 4000 1.26
30215 75 130 27.5 25 22 2 1.5 138.06 185.45 27 2800 3800 1.41
30216 80 140 28.25 26 22 2.5 2 159.43 212.95 27.5 2600 3400 1.72
30217 85 150 30.5 28 24 2.5 2 176.34 236.95 30 2400 3200 2.14
30218 90 160 32.5 30 26 2.5 2 198.94 269.72 32 2200 3000 2.66
30219 95 170 34.5 32 27 3 2.5 255.76 309.23 34 2200 2800 3.07
30220 100 180 37 34 29 3 2.5 258 335 36 2000 2700 3.78
30221 105 190 39 36 30 3 2.5 287 380 38.1 1900 2500 4.51
30222 110 200 41 38 32 3 2.5 325 435 40.1 1800 2400 5.28
30224 120 215 43.5 40 34 3 2.5 345 470 44.4 1700 2200 6.28
30226 130 230 43.75 40 34 4 3 375 505 45.8 1500 2000 7.25
30228 140 250 45.75 42 36 4 3 390 515 48.9 1400 1900 8.74
☆We reserve the right to change specifications and other information included in this catalogue without notice.
US $1.6-1.8
/ Piece
|
100 Pieces

(Min. Order)

###

Rolling Body: Roller Bearings
The Number of Rows: Single
Outer Dimension: Small and Medium-Sized (60-115mm)
Material: Bearing Steel
Spherical: Non-Aligning Bearings
Load Direction: Radial Bearing

###

Samples:
US$ 2.8/Piece
1 Piece(Min.Order)

|
Request Sample

###

Customization:

###

Basic Nominal Bearing Dimensions Preferred Shoulder Diameters Basic Effective Limiting Weight
Load Ratings Center Load Speeds
Bearing d D T B C r1 r2    
No. (Min Inner Ring) (Min Out Ring) Cr Cor a Grease Oil (Approx.)
  mm mm mm mm mm mm mm KN KN mm rpm rpm kg
30203 17 40 13.25 12 11 1 1 20.91 21.92 9.9 9900 13000 0.078
30204 20 47 15.25 14 12 1 1 28.49 30.6 11.2 8800 12000 0.124
30205 25 52 16.25 15 13 1 1 32.67 36.97 12.5 7300 10000 0.151
30206 30 62 17.25 16 14 1 1 43.58 50.48 13.8 6300 8400 0.229
30207 35 72 18.25 17 15 1.5 1.5 54.28 63.47 15.3 5500 7400 0.328
30208 40 80 19.25 18 16 1.5 1.5 62.95 73.92 16.9 4900 6600 0.419
30209 45 85 20.75 19 16 1.5 1.5 67.84 83.58 18.6 4400 6000 0.474
30210 50 90 21.75 20 17 1.5 1.5 73.26 92.1 20 4000 5300 0.529
30211 55 100 22.75 21 18 2 1.5 90.51 113.7 21 3600 5000 0.74
30212 60 110 23.75 22 19 2 1.5 102.85 130.07 22 3400 4500 0.904
30213 65 120 24.75 23 20 2 1.5 118.81 152.69 23.5 3100 4200 1.18
30214 70 125 26.5 24 21 2 1.5 131.7 173.73 25.5 2900 4000 1.26
30215 75 130 27.5 25 22 2 1.5 138.06 185.45 27 2800 3800 1.41
30216 80 140 28.25 26 22 2.5 2 159.43 212.95 27.5 2600 3400 1.72
30217 85 150 30.5 28 24 2.5 2 176.34 236.95 30 2400 3200 2.14
30218 90 160 32.5 30 26 2.5 2 198.94 269.72 32 2200 3000 2.66
30219 95 170 34.5 32 27 3 2.5 255.76 309.23 34 2200 2800 3.07
30220 100 180 37 34 29 3 2.5 258 335 36 2000 2700 3.78
30221 105 190 39 36 30 3 2.5 287 380 38.1 1900 2500 4.51
30222 110 200 41 38 32 3 2.5 325 435 40.1 1800 2400 5.28
30224 120 215 43.5 40 34 3 2.5 345 470 44.4 1700 2200 6.28
30226 130 230 43.75 40 34 4 3 375 505 45.8 1500 2000 7.25
30228 140 250 45.75 42 36 4 3 390 515 48.9 1400 1900 8.74
☆We reserve the right to change specifications and other information included in this catalogue without notice.

Understanding the Different Types of Bearings

When you are looking for a bearing, you have many options to choose from. This article will explain the various types, functions, and working principles of different types of bearings. Once you understand the basic components, you can make an informed decision about which one to buy. Here’s an overview of some of the most common types. Learn more about each type below! Read on to learn about the differences between these different types of bearings! Posted in Articles

Functions

bearing
Bearings serve as an integral part of a mechanical device. These devices help transfer torque from one part of a structure to another. These mechanisms increase the efficiency of a shaft by increasing its life. However, the functions of bearings depend on the application of the structure. Among other functions, bearings provide support to shafts. Anti-friction bearings come in two types: ball and roller bearings. These components have line and point contact, which is the most common type. Archimedes’s principle states that the force is equal to the weight of the fluid that is being displaced. Bearings can transfer lateral loads to a substructure.
A bearing has two primary functions. The first is to prevent direct metal-to-metal contact. A bearing prevents friction, heat generation, and wear and tear of components. A bearing also reduces energy consumption. Its other purpose is to guide and support a rotating body. In addition to these functions, bearings can also reduce wear and tear on a machine. As a result, they are among the most widely used machines in the world.
Seals are a major component of a bearing. They prevent foreign materials from entering and lubricating the moving parts. The design of seal lips determines their effectiveness. Fuel economy regulations and CO2 emissions regulations are pushing the demand for low-friction bearings. However, high-performance seals do not always provide high-performance. As a result, current estimations of the friction in bearings depend on trial and error methods.
Another important function of bearings is that they transfer the load of a rotating component to its housing. This load can be axial or radial. Bearings also limit movement to predefined directions. Some types of rolling element bearings have balls or cylinders inside. These bearings are less frictional than sliding ones, thus they allow parts to move freely during rotation. These parts can then be used for various applications. So, bearings are an integral part of machines.

Types

The most common type of bearing is a plain bearing. It uses surfaces in rubbing contact to transmit movement from one part to another. These bearings may be discrete or may consist of a hole in a metal sleeve or a planar surface bearing another part. Some plain bearings are flanged, while others are made of a sleeve with a flange at one end. These bearings often give acceptable accuracy and life, but they are expensive and cannot be used in large scale applications.
Radial bearings are used when there is a need for high-speed or corrosive parts. This type of bearing also serves as a support in an intermediate situation. Its two components are called the base and the cover. The base and cover are connected and are arranged parallel to the main axis. This type of bearing is used in steady-state and axial motion applications. The radial bearings are also used when the shafts are long.
Angular contact bearings are another type of bearing. These are easy to install and require minimal maintenance. Their races are displaced along the axis. They are also better at handling axial loads and transferring them to the housing. These types of bearings are commonly used in pumps, automobiles, and high-speed applications. If you are looking for an affordable, reliable bearing, look no further than the angular contact bearing.
Another type of bearing is a self-lubricating bushing. These are lightweight and wear-resistant. Unlike the other types of bearing, they do not require any lubrication or maintenance. In fact, some are completely maintenance-free. But if you’re worried about maintenance, this type of bearing may be a good choice. There are many benefits of using self-lubricating bushings. It is also a good option for applications where your machine is exposed to extreme temperatures.

Working principle

bearing
A bearing has two primary functions: support and load transfer. In engineering applications, the bearing tends to push the load in the direction of the shaft. A radial load pushes the bearing downward and a thrust load pushes it sideways. Both types of load transfer are important in a variety of applications. The working principle of each type is described below. Listed below are the main uses for each type of bearing.
A plain bearing uses a PTFE liner on the interface of two moving parts. The PTFE liner acts as a lubricant and may be filtered to alter its friction. The journal bearing uses the motion of the journal to force fluid into the gap between two moving parts. This results in a small amount of play in the bearing. This play is acceptable for most applications. A ball bearing may have a maximum play of 2 mm for a ten-millimeter shaft.
The primary function of a bearing is to assist in rotation and to reduce mechanical friction between the two objects. A bearing may be installed as a separate device or as an integral part of a machine. For more complex applications, bearings are very precise components requiring the highest standards of technology. For this reason, it is important to understand the working principle of bearings. The next time you need to lift or slide a heavy object, consider a bearing.
Ball bearings are a common type of ball bearing and can be found in industrial machinery and automobiles. Their unique structure helps them support less weight. This is because they are comprised of two rings – an inner race and an outer race. The balls themselves have a small area of contact and transfer axial loads in one direction. A cage surrounds the balls and prevents them from colliding. This makes ball bearings a popular choice for many applications.

Sealing system

A bearing’s seals are vital for the operation of rolling and rotating components. These systems enable rotation and linear movement while limiting friction and dispersing stress. Without the proper seals, these components could face catastrophic failure. In addition to protecting the bearing from external forces, seals help retain lubricant inside the system and prevent harmful particles from entering the gap. A seal’s lubrication helps prevent the onset of mechanical damage and prolongs the life of the bearing.
A bearing seal is made up of two parts: the inner sealing element and the outer sealing element. A passageway runs through the bearing assembly to the outer seal element. A hydraulic press or pneumatic jack is recommended for installing the seal. These tools are effective in reducing deformation and improving seal installation quality. When fitting the seal, ensure that the tool does not hit the seal directly. A proper adopter will distribute the load uniformly across the seal.
The seal’s efficiency depends on its gap. A four-inch shaft seal can flow 0.5 standard cubic feet per minute. A seal’s efficiency is highly dependent on the gap size. The gap size is a cube of the flow through the system. A smaller gap size allows high flow and pressure but less leakage. If both surfaces of the seal have similar pressures and flow rates, the seal is efficient. However, a small gap reduces the pressures and reduces wear.
Mechanical seals have numerous advantages, including their ability to protect against contaminants and splashing liquids. Labyrinth seals are the first line of defense against leaks. They operate without friction. Their high level of sealing efficiency helps ensure that the bearing remains operational for long. This type of seal is made from metal plates and is designed for a wide temperature range and misalignment. Its advantages include being easy to install and offering 100% sealing efficiency.

Maintenance

bearing
Bearing maintenance is critical to ensuring that your bearings keep operating at their peak performance. Proper maintenance will improve bearing life, reduce downtime and increase productivity while reducing costs. Here is an 8-point checklist to optimize your bearings and make them last longer. To optimize their performance, you should follow these steps regularly. In case a bearing does not last long, you should replace it as soon as possible. Listed below are some tips to ensure proper maintenance.
The first step is to determine how often your bearings require lubrication. Some manufacturers recommend that you lubricate them weekly, but this can do more harm than good. Instead, use ultrasound to measure the level of friction and trend its levels. This way, you will know exactly when to grease your bearings. It’s also important to check how often they should be inspected and calibrated. A professional can provide guidance on proper maintenance.
Next, inspect your bearings for cracks and scratches. You should never install a bearing that has been dropped or scratched. Even a small crack will affect the performance of the bearing and could lead to its premature failure. A proper alignment is essential for the bearing to function properly. Make sure you have the correct tools to perform this task. These tools can help you reduce manual work and promote safe bearing maintenance. You should also ensure that the shaft and housing are clean and undamaged.
Proper maintenance can prolong bearing service life. Proper lubrication, mounting, inspection, basic condition monitoring, and dismounting can extend their life. Proper maintenance extends their lifespan and improves plant productivity. While bearings are essential for machinery, you should make sure you follow the proper safety procedures every time you work with them. These tips will also help prevent accidents and maintain your machine’s efficiency. Once you’ve followed these guidelines, you can safely inspect your bearings and ensure that they’re operating at their optimum capacity.

China Brearing Factory NTN Koyo NSK Tapared Roller Bearing 30203 30204 30205 30206 30207 30208 30209 30210 Rolling Bearing     bearing blockChina Brearing Factory NTN Koyo NSK Tapared Roller Bearing 30203 30204 30205 30206 30207 30208 30209 30210 Rolling Bearing     bearing block
editor by czh 2022-11-29