China high quality High Precision Bearing Taper Roller Bearing Cylindrical Roller Bearings Auto Parts Deep Groove Ball Bearing Spherical Roller Bearings for Industry Machinery double row ball bearing

Product Description

Tapered roller bearings are separated bearings, and the inner and outer rings of the bearings are equipped with tapered raceways. This kind of bearing is divided into single row, double row and 4 row tapered roller bearings and other different structural types according to the number of rows of rollers installed. Single-row tapered roller bearings can withstand radial loads and axial loads in a single direction.

 

 

Specification

 

BEARING
TYPE
BEARING
NO.
ID OD B Cr Cor MAX SPED
(GREASE)
MAX SPEED
(OIL)
MASS Material
    (mm) (mm) (mm) (kN) (kN) (r/min) (r/min) (kg)  
Taper roller
bearing
35713 17 40 12 20.8 21.8 9000 12000 0.079 Chrome
steel
Taper roller
bearing
35714 20 47 14 28.2 30.5 8000 10000 0.126 Chrome
steel
Taper roller
bearing
35715 25 52 15 32.2 37 7000 9000 0.154 Chrome
steel
Taper roller
bearing
35716 30 62 17.5 43.2 50.5 6000 7500 0.231 Chrome
steel
Taper roller
bearing
35717 35 72 17 54.2 63.5 5300 6700 0.331 Chrome
steel
Taper roller
bearing
35718 40 80 18 63 74 5000 6300 0.422 Chrome
steel
Taper roller
bearing
35719 45 85 19 67.8 83.5 4500 5600 0.474 Chrome
steel
Taper roller
bearing
35710 50 90 20 73.2 92 4300 5300 0.529 Chrome
steel
Taper roller
bearing
35711 55 100 21 90.8 115 3800 4800 0.713 Chrome
steel
Taper roller
bearing
35712 60 110 22 102 130 3600 4500 0.904 Chrome
steel
Taper roller
bearing
35713 65 120 23 120 152 3200 4000 1.13 Chrome
steel
Taper roller
bearing
35714 70 125 24 132 175 3000 3800 1.26 Chrome
steel
Taper roller
bearing
35715 75 130 25 138 185 2800 3600 1.36 Chrome
steel
Taper roller
bearing
35716 80 140 26 160 212 2600 3400 1.67 Chrome
steel
Taper roller
bearing
35717 85 150 31 178 238 2400 3200 2.06 Chrome
steel
Taper roller
bearing
35718 90 160 30 200 270 2200 3000 2.54 Chrome
steel
Taper roller
bearing
35719 95 170 32 228 308 2000 2800 3.04 Chrome
steel
Taper roller
bearing
35710 100 180 34 255 350 1900 2600 3.72 Chrome
steel
Taper roller
bearing
35711 105 190 36 285 398 1800 2400 4.38 Chrome
steel
Taper roller
bearing
35712 110 200 38 315 445 1700 2200 5.21 Chrome
steel
Taper roller
bearing
35714 120 215 40 338 482 1500 1900 6.2 Chrome
steel
Taper roller
bearing
35716 130 230 40 365 520 1400 1800 6.94 Chrome
steel
Taper roller
bearing
35718 140 250 42 408 585 1200 1600 8.73 Chrome
steel
Taper roller
bearing
35710 150 270 45 450 645 1100 1500 10.8 Chrome
steel
Taper roller
bearing
35712 160 290 48 512 738 1000 1400 13.3 Chrome
steel
Taper roller
bearing
35714 170 310 52 590 865 1000 1300 16.6 Chrome
steel
Taper roller
bearing
35716 180 320 52 610 912 900 1200 17.3 Chrome
steel
Taper roller
bearing
35718 190 340 55 698 1030 850 1100 20.8 Chrome
steel
Taper roller
bearing
35710 200 360 58 685 972 940 1200 25.6 Chrome
steel
Taper roller
bearing
35714 220 400 73 1571 1440 830 1100 35.5 Chrome
steel
Taper roller
bearing
35718 240 440 79 1230 1790 730 980 46.4 Chrome
steel
Taper roller
bearing
35712 260 480 80 1210 1860 650 870 64.9 Chrome
steel
Taper roller
bearing
35716 280 500 80 1260 1920 610 810 67.6 Chrome
steel
Taper roller
bearing
30260 300 540 85 1510 2360 550 730 84.7 Chrome
steel
Taper roller
bearing
30264 320 580 92 1740 2770 490 660 108 Chrome
steel

    ZheJiang Haina Bearing Co., Ltd. is an integrated company of industry and trade. Since its establishment, it has been committed to the research and development, production, and sales of high-end 7 types of tapered roller bearings, British non-standard bearings, deep groove ball bearings, and outer spherical bearings. We can customize and adjust various types of bearings according to customer needs. The products are widely applicablein fields such as automobiles, mines, chemicals, metallurgy, reducers, engineering machinery, agricultural machinery, and electric motors.

    Our company has advanced testing equipment, forming a production model of product serialization and mass production. We have a group of experienced and skilled management personnel, who have introduced advanced production equipment and measuringand testing equipment. From the purchase of bearing raw materials to the delivery of finished products, we strictly control the entire process, ensuring the quality of the products.The products have the characteristics of precision, low noise, high load-bearing capacity and long service life.

1. Your factory how to control the quality?
A: All bearing parts before the production and the production process, strict inspection by 100%, including crack detection, roundness, hardness,
roughness,and the geometry size, all bearing meet ISO international standard.

2. Can you tell me the bearing material?
A: We have chrome steel GCR15, stainless steel, ceramics and other materials.

3. How long is your delivery time?
A: If the goods are in stock, usually 5 to 10 days, if the goods are no stock for 15 to 20 days, according to the quantity to determine the time.

4. OEM and custom you can receive?
A: Yes, accept OEM, can also be customized according to samples or drawings for you.
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Model No.: 30218 30219 30220 30221 30222
OEM: Acceptable
Quality: P0
Number of Row: Single Rows
Single Row ID Size Range: 90-110mm
Single Row Od Size Range: 160-200mm
Samples:
US$ 3.98/Piece
1 Piece(Min.Order)

|
Request Sample

roller bearing

Can you describe the various types of seals and shields used with roller bearings for contamination prevention?

Roller bearings are often equipped with seals and shields to prevent contamination from entering the bearing and to retain lubrication. These protective devices help maintain the performance, reliability, and longevity of the bearings in various applications. Here’s a description of the various types of seals and shields commonly used with roller bearings:

  • Contact Seals:

Contact seals, also known as lip seals or radial seals, are designed to create a physical barrier between the bearing and its external environment. They consist of a flexible lip made of elastomeric material, such as nitrile rubber or fluoroelastomer, which makes contact with the inner or outer ring of the bearing. Contact seals provide an effective seal against solid and liquid contaminants, preventing their ingress into the bearing. They also retain the lubricating grease inside the bearing, minimizing the need for frequent relubrication. Contact seals are commonly used in applications where moderate sealing performance is required, such as electric motors, pumps, and automotive wheel bearings.

  • Non-Contact Seals:

Non-contact seals, also known as labyrinth seals or gap seals, do not make physical contact with the bearing surfaces. They feature a series of labyrinth-like channels or grooves that create a tortuous path for contaminants, effectively blocking their entry into the bearing. Non-contact seals provide less friction compared to contact seals, which can be beneficial for applications that require high-speed operation. However, they may offer slightly lower sealing performance in extremely dusty or wet environments. Non-contact seals are commonly used in applications such as machine tools, industrial gearboxes, and high-speed rotating equipment.

  • Metal Shields:

Metal shields, also known as metal covers or metal shields, are rigid plates made of metal, typically steel, that are attached to the bearing outer ring. They provide a physical barrier against larger contaminants, such as dirt and debris, while allowing for limited lubricant flow. Metal shields offer good protection in applications where the primary concern is preventing large solid particles from entering the bearing. They are commonly used in applications such as electric motors, fans, and agricultural machinery.

  • Rubber Shields:

Rubber shields, also known as rubber seals or non-metallic shields, are made of synthetic rubber materials and are attached to the bearing outer ring. They provide effective protection against both solid and liquid contaminants, ensuring a high degree of sealing performance. Rubber shields offer better sealing capabilities compared to metal shields but may introduce slightly more friction. They are commonly used in applications that require enhanced sealing performance, such as automotive wheel bearings, conveyor systems, and food processing equipment.

  • Felt Seals:

Felt seals are made of compressed or impregnated felt material and are used for light-duty sealing applications. They provide a barrier against larger solid contaminants and certain types of liquid contaminants. Felt seals are commonly used in low-speed applications, such as pillow block bearings and lightly loaded machinery.

In summary, roller bearings can be equipped with various types of seals and shields to prevent contamination. Contact seals, non-contact seals, metal shields, rubber shields, and felt seals are commonly used depending on the specific application requirements. These protective devices play a vital role in maintaining the cleanliness and lubrication of the bearing, ensuring optimal performance, reliability, and longevity.

roller bearing

How do roller bearings perform in high-speed or high-load applications?

Roller bearings are designed to perform effectively in both high-speed and high-load applications, offering reliable operation and exceptional performance under demanding conditions. The specific design features and characteristics of roller bearings enable them to handle these challenging operating conditions. Here’s a detailed explanation of how roller bearings perform in high-speed or high-load applications:

  • High-Speed Applications:

In high-speed applications, roller bearings are capable of accommodating rapid rotation while maintaining their performance and integrity. Several factors contribute to the ability of roller bearings to handle high speeds:

  • Cage Design: Roller bearings often incorporate a cage or separator that keeps the rolling elements evenly spaced and separated. This design minimizes friction and prevents contact between the rolling elements, even at high speeds.
  • Material Selection: Roller bearings are manufactured using high-quality materials, such as steel or ceramic, that provide excellent strength, hardness, and durability. These materials allow the bearings to withstand the centrifugal forces and dynamic loads associated with high speeds.
  • Lubrication: Proper lubrication is essential for high-speed applications. Lubricants with low viscosity and high thermal stability are used to minimize friction and dissipate heat effectively. The lubricant also helps to reduce the risk of bearing failure due to overheating caused by friction at high speeds.
  • Critical Speed Considerations: Roller bearings are designed to operate below their critical speed, which is the rotational speed at which the bearing experiences excessive vibration and potential failure. By selecting the appropriate bearing size and design, the critical speed can be avoided or minimized, ensuring stable and reliable operation at high speeds.
  • High-Load Applications:

Roller bearings excel in high-load applications, where they are subjected to significant radial or axial loads. The following factors contribute to the performance of roller bearings under high-load conditions:

  • Load-Carrying Capacity: Roller bearings have a higher load-carrying capacity compared to other types of bearings. The design features, such as larger contact areas and multiple rolling elements, distribute the load over a larger surface area, reducing stress concentrations and enhancing load-carrying capability.
  • Rigidity: Roller bearings exhibit high rigidity, which enables them to maintain their shape and resist deformation under heavy loads. This rigidity ensures that the bearing can support the applied loads without excessive deflection or loss of performance.
  • Rolling Element Design: The shape and arrangement of the rolling elements in roller bearings contribute to their ability to handle high loads. The larger contact area and optimized geometry of the rolling elements distribute the load more effectively, reducing stress and preventing premature bearing failure.
  • Lubrication and Surface Treatments: Proper lubrication and the use of specialized surface treatments, such as coatings or heat treatments, enhance the durability and load-carrying capacity of roller bearings. These treatments reduce friction, minimize wear, and improve the resistance to fatigue and surface damage caused by high loads.

Overall, roller bearings demonstrate excellent performance in high-speed or high-load applications. Their ability to handle rapid rotation and accommodate heavy loads is attributed to their cage design, material selection, lubrication, critical speed considerations, load-carrying capacity, rigidity, rolling element design, and surface treatments. By selecting the appropriate type and design of roller bearings and ensuring proper maintenance and lubrication, these bearings can reliably and efficiently operate in a wide range of high-speed or high-load applications across various industries.

roller bearing

What are the key advantages of using roller bearings in machinery and equipment?

Roller bearings offer several key advantages when used in machinery and equipment. These advantages contribute to improved performance, reliability, and efficiency in various applications. Here’s a detailed explanation of the key advantages of using roller bearings:

  • High Load Capacity:

One of the primary advantages of roller bearings is their high load-carrying capacity. The cylindrical or tapered rolling elements (rollers) in roller bearings distribute the load over a larger surface area compared to ball bearings. This allows roller bearings to handle heavier radial, axial, and combined loads. In machinery and equipment that operate under significant load conditions, such as construction machinery, conveyors, or heavy-duty gearboxes, roller bearings provide superior performance and reliability.

  • Enhanced Durability:

Roller bearings are known for their durability and ability to withstand harsh operating conditions. The line contact between the rolling elements and raceways in roller bearings allows for better load distribution, reducing localized stresses. This results in improved durability and resistance to wear, fatigue, and deformation. Roller bearings are commonly used in applications where reliability and long service life are crucial, such as industrial machinery, mining equipment, and automotive components.

  • Ability to Handle Misalignment:

Roller bearings, particularly spherical roller bearings, have the ability to accommodate misalignment between the shaft and the housing. This flexibility is advantageous in applications where alignment may be challenging or subject to changes due to thermal expansion, shaft deflection, or mounting errors. Roller bearings can handle limited misalignment without significant impact on performance or premature wear. This feature simplifies installation and maintenance, reducing the risk of damage or failure in machinery and equipment.

  • Wide Range of Sizes and Configurations:

Roller bearings are available in a wide range of sizes, configurations, and designs, providing flexibility for various machinery and equipment applications. Cylindrical roller bearings, tapered roller bearings, spherical roller bearings, and needle roller bearings are among the commonly used types of roller bearings. This variety allows engineers and designers to select the most appropriate bearing based on load requirements, speed, space limitations, and other factors. The availability of different configurations ensures optimal performance and compatibility in diverse machinery and equipment setups.

  • Suitability for High-Speed Applications:

Roller bearings can be designed and manufactured to operate efficiently at high speeds. Advances in bearing technology, including optimized designs, improved materials, and lubrication systems, have enabled roller bearings to handle high rotational speeds while maintaining performance and reliability. This makes roller bearings suitable for applications that require high-speed operation, such as machine tools, power transmission systems, and automotive engines. Proper selection and application of roller bearings ensure smooth and reliable performance at elevated speeds.

  • Reduced Friction and Energy Consumption:

Roller bearings typically exhibit lower friction compared to other types of bearings, such as plain bearings or sliding contact bearings. The rolling motion of the cylindrical or tapered rollers reduces frictional resistance, resulting in reduced energy consumption and heat generation. The lower friction contributes to improved efficiency and lower operating temperatures in machinery and equipment. This advantage is particularly important in applications where energy efficiency and heat management are critical, such as electric motors, pumps, and industrial gearboxes.

In conclusion, roller bearings offer several key advantages when used in machinery and equipment. Their high load capacity, enhanced durability, ability to handle misalignment, wide range of sizes and configurations, suitability for high-speed applications, and reduced friction and energy consumption make them a preferred choice in various industries. By incorporating roller bearings, machinery and equipment can achieve improved performance, reliability, and efficiency, leading to enhanced productivity and reduced downtime.

China high quality High Precision Bearing Taper Roller Bearing Cylindrical Roller Bearings Auto Parts Deep Groove Ball Bearing Spherical Roller Bearings for Industry Machinery   double row ball bearingChina high quality High Precision Bearing Taper Roller Bearing Cylindrical Roller Bearings Auto Parts Deep Groove Ball Bearing Spherical Roller Bearings for Industry Machinery   double row ball bearing
editor by CX 2024-03-07

Roller Bearing

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