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Item #:
75263207
10Pcs 638 638ZZ 638RS 638-2Z 638Z 638-2RS ABEC-7 Deep Groove Ball Bearings 8 28 9mm
Item #:
75263207
ETB 4499
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Product Details
- 10Pcs 638 bearings with I.D. of 8mm, O.D. of 28mm, and thickness of 9mm
- 638-2Z bearings feature double-sided shielding for lubricant retention
- Constructed from durable Carbon Steel for heavy load resistance
- ABEC Tolerance 7 and Z2 Noise Level for general use
- Static load rating of 1586 newtons and dynamic load rating of 3879 newtons
- Dimensions of 638ZZ bearings are 8*28*9mm
| Country of Origin | This item will be imported from US |
| What is in the box | 10Pcs 638 638ZZ 638RS... For more details, please check description/product details |
Product Description
10Pcs 638 638ZZ 638RS 638-2Z 638Z 638-2RS ABEC-7 Deep Groove Ball Bearings 8 28 9mm
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Customer Questions & Answers
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Question:
What are the key features of 10Pcs 638 ABEC-7 Deep Groove Ball Bearings?
Answer: The 10Pcs 638 ABEC-7 Deep Groove Ball Bearings feature inner and outer diameters of 8mm and 28mm, respectively, with a thickness of 9mm. Designed for efficient performance, these bearings have low friction, allowing them to operate smoothly at high speeds while maintaining durability. They are ideal for various applications, including electric motors, bicycles, and robotics, where precision and reliability are critical. -
Question:
What is the difference between 638ZZ, 638RS, 638-2Z, and 638-2RS types of bearings?
Answer: The differences lie mainly in sealing and shielding. 638ZZ features metal shields that provide protection against dust and moisture, while 638RS includes rubber seals for enhanced protection in harsher environments. The 638-2Z and 638-2RS have similar functions, but 2RS uses rubber seals for flexibility and better sealing against contaminants. Depending on your environment and application, select the type that suits your needs for optimal performance. -
Question:
What applications are suitable for using these bearings?
Answer: The 10Pcs 638 Deep Groove Ball Bearings are versatile and can be utilized in various fields. They're perfect for applications in electric motors, conveyor systems, home appliances, and even in the automotive sector. Due to their ability to handle both radial and axial loads, these bearings are ideal for situations where compact size and reliability are essential, allowing you to streamline projects across many industries. -
Question:
How do I determine the right fit for my machinery?
Answer: To determine the right fit for your machinery, measure the inner and outer diameter as well as the width of existing bearings. Ensure the replacements match these dimensions. Additionally, consider the operating conditions such as load, speed, and environmental factors like temperature or moisture. Using the right bearing type and size will enhance efficiency and prolong the life of your machinery, ensuring optimal operation. -
Question:
What materials are used in these ball bearings?
Answer: These 10Pcs 638 ABEC-7 Deep Groove Ball Bearings are typically made from high-quality chrome steel or stainless steel, known for their strength, corrosion resistance, and durability. This choice of materials allows the bearings to withstand varying loads and speeds while ensuring smooth operation. Their robust design makes them suitable for extended use in different applications, minimizing the need for frequent replacements. -
Question:
Are these bearings suitable for high-speed applications?
Answer: Yes, the 10Pcs 638 ABEC-7 Deep Groove Ball Bearings are designed to perform well in high-speed applications. The ABEC-7 rating indicates a higher degree of precision, allowing them to operate smoothly at elevated speeds with reduced vibration and noise. They are often used in equipment that requires high RPMs, such as RC cars, bicycles, and industrial machines, where efficiency is key. -
Question:
How do I properly install these ball bearings?
Answer: Proper installation of the 10Pcs 638 Ball Bearings involves cleaning the bearing housing and applying a suitable lubricant. Gently press the bearing into its designated space without applying excessive force that could damage it. By ensuring a proper fit and alignment is achieved, you can help maintain their functionality and performance, enhancing the overall reliability of your equipment. -
Question:
What are the advantages of using ABEC-7 rated bearings?
Answer: ABEC-7 rated bearings offer superior precision compared to lower-rated options, leading to less noise, reduced vibration, and improved speed capabilities. With tighter tolerances, these bearings can provide higher performance standards, making them ideal for applications where accuracy and reliability are paramount. For instance, in robotics or high-speed machinery, the benefits of using ABEC-7 can be significant in achieving better overall efficiency. -
Question:
Can these bearings withstand high temperatures?
Answer: While the 10Pcs 638 Ball Bearings perform well under standard operating conditions, their resistance to high temperatures largely depends on the lubricant used. Standard grease may degrade at high temperatures, affecting performance. If your application involves elevated temperatures, consider using heat-resistant lubricants and verify that your specific bearing type is rated for those conditions. This consideration will help prolong the bearing life and maintain operational reliability. -
Question:
Where can I buy 10Pcs 638 638ZZ 638RS 638-2Z 638Z 638-2RS ABEC-7 Deep Groove Ball Bearings in Ethiopia?
Answer: You can conveniently purchase the 10Pcs 638 638ZZ 638RS 638-2Z 638Z 638-2RS ABEC-7 Deep Groove Ball Bearings on Ubuy in Ethiopia. Ubuy offers a wide selection of bearings with detailed product information to help you make an informed decision. By choosing Ubuy, you can ensure a seamless shopping experience and find reliable components for your projects.
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ETB 4499
Order now and get it around Saturday, August 08
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Features & Benefits
- Made from Carbon Steel for durability and resistance to heavy loads
- 638ZZ bearings are shielded on BOTH SIDES to keep lubricant in
- ABEC Tolerance 7, Z2 Noise Level for most general use
- Static load rating of 1586 newtons
- Dynamic load rating of 3879 newtons
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