Product Description

Product Description

Bearing No. HXB 7204C/AC P4 DUL Angular Contact Ball Bearing-radial ball bearing

·Dimensions: 20x47x14mm
·Rubber seal on both sides
·100% Chrome Steel for higher resistance and durability
·Supports 38000 rpm with grease, 51000 rpm with oil
·Our high-quality bearing is made to reduce your replacement frequency and maintenance cost

Specifications for this item

Bearing Type: angular contact ball bearing-high speed electric motor bearing,water pump bearing,spindle bearing 
Brand: HXB or OEM brand
Material: chrome steel GCr15, AISL52100, SUJ2
Part No.: 7204-AC-T-P4, 7204-C-T-P4, 7204-C-T-HQ1-P4, 7204-AC-T-HQ1-P4
Precision Class: P4, P5
Application: electric motor, motorcycle, household appliance, electric tools, water pump

Designation Boundary dimensions Dimensions Weight Load rating Speed value Preload/axial rigidity Spring  preload Designation
  d D B d1 d2 D1 D2 r1,2 r3,4 m C C0 noil ngrease Fv Cax Fv Cax Fv Cax Ff  
71804 C TA 20 32 7 23.9   28.1 29.1 0.3 0.3 0.018 3650 2500 65000 49000 19 21 55 32 110 45 95 71804 C TA
71804 E TA 20 32 7 23.9   28.1 29.1 0.3 0.3 0.018 3450 2380 56000 42000 30 49 90 74 170 95 130 71804 E TA
71904 C TA 20 37 9 25.1   31.9 33.2 0.3 0.3 0.036 7250 4600 60000 45000 35 26 110 43 220 61 185 71904 C TA
71904 E TA 20 37 9 25.1   31.9 33.2 0.3 0.3 0.036 6850 4350 51000 38000 55 62 170 95 340 125 250 71904 E TA
H71904 C-2RZ TA 20 37 9 25.1   31.9 33.2 0.3 0.3 0.036 5400 2700 70000 52000 30 22 80 32 170 45 165 H71904 C-2RZ TA
H71904 C-2RZ HQ1 TA 20 37 9 25.1 24.5 31.7 33.0 0.3 0.3 0.036 3900 1900 75000 56000 20 21 60 33 120 44 140 H71904 C-2RZ HQ1 TA
H71904 AC-2RZ HQ1 TA 20 37 9 25.1 24.5 31.7 33.0 0.3 0.3 0.036 3700 1820 68000 51000 30 44 90 66 180 85 180 H71904 AC-2RZ HQ1 TA
7004 C TA 20 42 12 26.6   35.5 37.3 0.6 0.3 0.063 12200 7600 55000 41000 60 33 180 57 360 84 315 7004 C TA
7004 AC TA 20 42 12 26.6   35.5 37.3 0.6 0.3 0.063 11700 7300 47000 35000 100 78 300 120 600 165 425 7004 AC TA
H7004 C-2RZ TA 20 42 12 26.6   35.5 37.3 0.6 0.3 0.063 8300 3800 65000 49000 40 24 120 37 240 51 250 H7004 C-2RZ TA
H7004 C-2RZ HQ1 TA 20 42 12 26.6 25.3 36.4 38.0 0.6 0.3 0.063 6500 3050 70000 52000 35 27 100 40 200 54 235 H7004 C-2RZ HQ1 TA
H7004 AC-2RZ HQ1 TA 20 42 12 26.6 25.3 36.4 38.0 0.6 0.3 0.063 6300 2950 63000 47000 50 54 160 82 320 106 300 H7004 AC-2RZ HQ1 TA
7204 C TA 20 47 14 28.5   38.6 41.4 1.0 0.6 0.105 16900 10000 51000 38000 85 38 260 66 500 94 435 7204 C TA
7204 AC TA 20 47 14 28.5   38.6 41.4 1.0 0.6 0.105 16200 9800 43000 32000 140 91 410 139 820 189 590 7204 AC TA
H7204 C-2RZ TA 20 47 14 28.5   38.6 41.4 1.0 0.6 0.105 9620 6220   38000               H7204 C-2RZ TA



Company Profile

Established in 1995, as a leading ball bearing manufacturer in China, HXB offers more than 1,000 kinds of ball bearing to fulfill our customers’ needs. With excellent production team and technical team, we can supply high quality products consistently.
After more than 20 years of development, HXB’s main products involves deep groove ball bearings, angular contact ball bearings, high precision spindle bearings, etc. Our bearings are wildly used in electric motors, machinery tool spindle, CNC, NEVs and other fields.

Contact Angle: 15°
Rows Number: Single
Load Direction: Radial Bearing
Material: Bearing Steel
Precision Class: P4
Grease: Bld-K
US$ 30/Pair
1 Pair(Min.Order)

Request Sample



Customized Request

ball bearing

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?

Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:

  • Regular Lubrication:

Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.

  • Clean Environment:

Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.

  • Proper Installation:

Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.

  • Regular Inspections:

Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.

  • Temperature Monitoring:

Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.

  • Correct Handling:

Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.

  • Bearing Removal and Replacement:

Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.

  • Alignment Maintenance:

Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.

  • Training and Education:

Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.

  • Documented Records:

Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.

By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

ball bearing

How do Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?

Miniature ball bearings, as the name suggests, are smaller in size compared to standard-sized ball bearings. They have distinct characteristics and are designed to meet the unique requirements of applications that demand compactness, precision, and efficient rotation in confined spaces. Here’s how miniature ball bearings differ from standard-sized ones and where they are commonly used:

  • Size:

The most noticeable difference is their size. Miniature ball bearings typically have outer diameters ranging from a few millimeters to around 30 millimeters, while standard-sized ball bearings have larger dimensions suitable for heavier loads and higher speeds.

  • Load Capacity:

Due to their smaller size, miniature ball bearings have lower load-carrying capacities compared to standard-sized bearings. They are designed for light to moderate loads and are often used in applications where precision and compactness are prioritized over heavy load support.

  • Precision:

Miniature ball bearings are known for their high precision and accuracy. They are manufactured to tighter tolerances, making them suitable for applications requiring precise motion control and low levels of vibration.

  • Speed:

Miniature ball bearings can achieve higher speeds than standard-sized bearings due to their smaller size and lower mass. This makes them ideal for applications involving high-speed rotation.

  • Friction and Efficiency:

Miniature ball bearings generally have lower friction due to their smaller contact area. This contributes to higher efficiency and reduced heat generation in applications that require smooth and efficient motion.

  • Applications:

Miniature ball bearings find applications in various industries and sectors:

  • Electronics and Consumer Devices:

They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.

  • Medical and Dental Equipment:

Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.

  • Robotics and Automation:

Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.

  • Aerospace and Defense:

They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.

  • Optics and Instrumentation:

Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.

Overall, miniature ball bearings are specialized components designed for applications where space, precision, and efficient rotation are paramount. Their compactness and high precision make them crucial in various industries requiring reliable motion control in limited spaces.

ball bearing

What are the Primary Benefits of Using Ball Bearings in Machinery and Equipment?

Ball bearings offer several primary benefits when used in machinery and equipment. Their design and functionality provide advantages that contribute to the efficient and reliable operation of various applications. Here are the key benefits:

  • Reduced Friction:

One of the primary benefits of ball bearings is their ability to minimize friction between moving parts. The rolling motion of the balls reduces the contact area and sliding friction, leading to smoother operation and less energy loss due to frictional heating.

  • Efficient Load Support:

Ball bearings are engineered to support both radial and axial loads, making them versatile for applications with multidirectional forces. This load-bearing capability allows machinery to handle different types of loads while maintaining performance and stability.

  • Smooth Rotation:

Ball bearings enable smooth and precise rotational movement. The rolling motion of the balls provides consistent motion with minimal resistance, ensuring that machinery operates smoothly and without jerks.

  • High-Speed Capability:

Due to their low friction and efficient rolling action, ball bearings are suitable for high-speed applications. They allow machinery and equipment to achieve and maintain high rotational speeds without excessive wear or heat buildup.

  • Reduced Wear and Maintenance:

The reduced friction in ball bearings leads to lower wear on components. This results in longer service intervals and reduced maintenance requirements, saving both time and maintenance costs.

  • Energy Efficiency:

By minimizing friction and reducing energy losses, ball bearings contribute to the overall energy efficiency of machinery. This is particularly important in applications where energy consumption is a concern.

  • Versatility:

Ball bearings come in various types, sizes, and configurations, allowing them to be used in a wide range of machinery and equipment. They can be customized to suit specific application requirements.

  • Reliability and Longevity:

Ball bearings are designed to withstand heavy loads and harsh operating conditions. Their durability and resistance to wear ensure reliable performance and an extended operational life.

  • Quiet Operation:

Ball bearings contribute to quiet machinery operation due to the smooth rolling motion of the balls. This is particularly important in applications where noise reduction is a consideration.

In summary, the primary benefits of using ball bearings in machinery and equipment include reduced friction, efficient load support, smooth rotation, high-speed capability, reduced wear and maintenance, energy efficiency, versatility, reliability, and quiet operation. These benefits collectively enhance the performance and longevity of machinery across various industries.

China Best Sales CZPT 7204c/AC P4dul Angular Contact Ball Bearing for Household Machinery   carrier bearingChina Best Sales CZPT 7204c/AC P4dul Angular Contact Ball Bearing for Household Machinery   carrier bearing
editor by CX 2023-11-16