Product Description

Established in 1989, our company, a Sino-Foreign joint venture, covers an area of 35,000 square meters . The Chinese Ministry of Foreign Trade and Economic Cooperation awarded our company special import-export trading privileges. Your ability to deal directly with our production company coupled with the superior quality of our products puts us in a position to offer you the highest quality products at the lowest competitive prices possibly. If you have any questions about our products or specific requests, please contact us. We look forward to establishing a warm and mutually beneficial association. Thank you for your time
 

SERIES HEHD             D              T             W             d           KG
PEBM-100/24-8B 100 24 24 8 140
PEBM-100/30-15B 100 30 30 15 160
PEBM-125/30-15B 125 30 50 15 250
PEBM-150/40-20B 150 40 50 20 500
PEBM-160/50-20B-1 160 50 50 20 600
PEBM-170/45-20B 170 45 57 20 600
PEBM-175/50-20B-1 175 50 50 20 650
PEBM-180/50-20B-1 180 50 50 20 700
PEBM-190/50-20B 190 50 60 20 750
PEBM-200/50-20B-1 200 50 50 20 800
PEBM-250/50-25B-1 250 50 50 25 1000
PEBM-300/60-25B 300 60 60 25 1500
PEBM-300/76-25B 300 76 82 25 1800

Gravity Caster Company is a professional company producing high-quality casters with a history of more than 30 years.
I think this product is more suitable for you and your market, I think it will have good sales in your market
We very much hope to serve you and hope our products can help you
Do you have a target price, we will try our best to reach your target price

Our company, HangZhou gravity casters technology Co., Ltd. Specializes manufacturer and exporter of industrial casters, wheels, rollers and other polyurethane products.

Because of the unique high load capacity, high elasticity, and wear and tear resistance of our casters and wheels, we are widely chosen by many customers in Europe, America, Japan and South-east Asia.

We have recently upgraded our production lines using the latest in German polyurethane production equipment. Using this advanced technology, we now have an annual production capacity of over 4 million pieces.

Our product lines include:

. Polyurethane wheels on cast iron, aluminum and nylon hubs

. Polyurethane pallet truck on cast iron, steel and nylon hubs

. Rubber wheels on cast iron and aluminum hubs

. Nylon wheels and nylon pallet truck rollers

. Cast iron and solid steel wheels

. Other polyurethane finished products

. Wheel brackets
HangZhou gravity casters technology Co., Ltd   a private , covering an area of 66, 000 square meters with a floor area of 50, 000 square meters, enjoys a 30-year history in the production of high quality polyurethane-elastomer products. The Chinese Ministry of Foreign Trade and Economic Cooperation awarded our company special import-export trading privileges. Your ability to deal directly with our production company coupled with the superior quality of our products puts us in a position to offer you the highest quality products at the lowest competitive prices possible.

If you have any questions about our products or specific requests, please contact us. We look forward to establishing a warm and mutually beneficial association.
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Type: Rotating Wheel
Wheel Material: PU
Brake: Without Brake
Bearing Type: Ball Bearing
Brand: Gravity Caster
Maximum Load: 140-1800kg
Samples:
US$ 2.99/Piece
1 Piece(Min.Order)

|
Request Sample

as per request
Customization:
Available

|

Customized Request

ball bearing

How does Preload Affect the Performance and Efficiency of Ball Bearings?

Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:

  • Reduction of Internal Clearance:

Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.

  • Increased Stiffness:

Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.

  • Minimized Axial Play:

Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.

  • Enhanced Rigidity:

The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.

  • Reduction in Ball Slippage:

Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.

  • Improved Running Accuracy:

Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.

  • Optimized Performance at High Speeds:

Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.

  • Impact on Friction and Heat Generation:

While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.

  • Application-Specific Considerations:

The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.

Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

ball bearing

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?

Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:

  • Effective Sealing:

Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.

  • Clean Environment:

Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.

  • Proper Handling:

Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.

  • Clean Tools and Equipment:

Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.

  • Contamination-Controlled Workstations:

Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.

  • Proper Lubrication:

Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.

  • Regular Inspections:

Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.

  • Training and Education:

Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.

  • Environmental Controls:

In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.

  • Regular Cleaning and Maintenance:

Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.

  • Selection of Suitable Bearings:

Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.

By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

ball bearing

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?

Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:

  • Load Type and Magnitude:

Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.

  • Speed and Operating Conditions:

Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.

  • Accuracy and Precision:

For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.

  • Space Limitations:

If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.

  • Thrust and Radial Loads:

Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.

  • Alignment and Misalignment:

If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.

  • Mounting and Installation:

Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.

  • Lubrication and Maintenance:

Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.

  • Environmental Conditions:

Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.

  • Bearing Material:

Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.

  • Bearing Arrangement:

Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.

By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.

China Standard High Elastic Polyurethane Wheel Withcast Iron Center Assemble Ball Bearing   bearing bronzeChina Standard High Elastic Polyurethane Wheel Withcast Iron Center Assemble Ball Bearing   bearing bronze
editor by CX 2024-04-17