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Item #:
34524504
LM8UU Cylinder Linear Motion Ball Bearing, ID 8mm, OD 15mm Linear Ball Bearings Sae52100 Carbon Steel, 4 Rows of Steel Balls, Great for CNC, 3D
Item #:
34524504
GBP 22
Price Details
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Imported from USA store
Order now and get it around Tuesday, October 13
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What Stands Out
Durable Material
Constructed with SAE52100 carbon steel, these bearings ensure longevity and high resistance to wear, making them ideal for demanding applications like CNC machines and 3D printers.
Smooth Operation
Featuring four rows of steel balls, the Aopin LM6UU bearings provide enhanced smoothness and precision, reducing friction for efficient linear motion in various engineering setups.
Versatile Use
Designed for compatibility with multiple applications, including linear rail guides and mechanical systems, these bearings offer exceptional performance and reliability across different projects, enhancing productivity.
Product Details
| Brand Name | Aopin |
| Bearing Number | LM8UU |
| Bearing Type | Ball Bearing |
| UPC | 744337422042 |
| Number of Items | 4 |
| Part Number | a20120901ap0033 |
| Manufacturer | Aopin-Hardware |
| Model | a20120901ap0033 |
| Item Dimensions | 1 x 1 x 1.5 inches (2.5 x 2.5 x 3.8 cm) |
| Material Type | Alloy Steel |
| Specification Met | ISO 9001 |
| Brand | Aopin |
| Material | Alloy Steel |
| Item dimensions L x W x H | 1 x 1 x 1.5 inches (2.5 x 2.5 x 3.8 cm) |
Who Should Buy?
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CNC Machine Users
Ideal for CNC machine owners seeking efficient, durable components for precise motion applications.
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3D Printer Enthusiasts
Perfect for 3D printing setups requiring reliable linear motion for smooth and accurate printing processes.
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RC Vehicle Builders
Great choice for hobbyists building remote-controlled vehicles needing robust and reliable linear bearings.
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Heavy Industry Applications
Not suitable for heavy-duty industrial machinery that requires larger and more robust bearings for extreme loads.
Product Description
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Customer Questions & Answers
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Question:
What is the dimension of the LM8UU Cylinder Linear Motion Ball Bearing?
Answer: The LM8UU Cylinder Linear Motion Ball Bearing has an inner diameter (ID) of 8mm and an outer diameter (OD) of 15mm. This specific sizing makes it ideal for various applications, particularly in CNC machines and 3D printers. The compact design helps in achieving smooth linear motion when mounted on a rail, ensuring minimal friction and optimal performance in your machine setups. -
Question:
What materials are used in the LM8UU Bearing?
Answer: The LM8UU Bearing is made from SAE52100 carbon steel, known for its hardness and durability. This material selection ensures that the bearings can withstand heavy loads and high speeds, making them suitable for demanding applications in both industrial and hobbyist environments. Additionally, its corrosion resistance properties help maintain performance over time, especially in potentially humid or variable conditions. -
Question:
How many rows of balls does the LM8UU Bearing have?
Answer: The LM8UU Bearing features four rows of steel balls arranged in a cylindrical motion design. This multi-row configuration allows for excellent load distribution and improved stability. It creates a smoother operation when used in linear guides or as part of a moving assembly, which is critical for precision applications like CNC machining and 3D printing. -
Question:
What are the typical applications for LM8UU Bearings?
Answer: The LM8UU Bearings are widely used in CNC machines, 3D printers, and linear rail guides. Their design provides low friction and high precision, which is crucial for applications requiring accurate movement along a linear path. Whether you're building a custom 3D printer, upgrading a CNC machine, or constructing linear actuators, these bearings enhance functionality and improve overall machine performance. -
Question:
How do I install the LM8UU Bearing?
Answer: Installing the LM8UU Bearing involves sliding it onto a compatible linear rail or shaft with an 8mm diameter. Position it correctly to ensure smooth movement. It is essential to keep the bearing aligned to avoid any misalignment, which could lead to excessive wear or malfunction. This makes it suitable for projects where precision is crucial, like in automated systems or robotics. -
Question:
Can I use LM8UU Bearings in an outdoor setting?
Answer: While LM8UU Bearings are robust due to their SAE52100 carbon steel construction, they are not inherently weatherproof or resistant to moisture. Depending on your project, if you plan to use them outdoors, consider applying a protective coating or using them in covered environments to enhance their longevity. This is particularly important if the applications involve exposure to water or extreme conditions. -
Question:
What is the load capacity of the LM8UU Bearing?
Answer: The load capacity of the LM8UU Bearing can vary depending on the specific application and setup; however, they are designed to handle significant loads thanks to their four-row ball configuration and durable material. They excel in environments where heavy loads and dynamic applications are present, such as in industrial machinery or advanced 3D printer setups. Always refer to your specific project requirements to ensure they meet your needs. -
Question:
How do LM8UU Bearings compare to other types of linear bearings?
Answer: LM8UU Bearings offer a combination of durability, smooth motion, and ease of installation compared to other linear bearing types. Unlike plain bearings, they provide reduced friction and enhanced efficiency in motion. Additionally, their multiple steel ball arrangement gives them a higher load-bearing capacity, making them more reliable for demanding tasks in CNC machining or high-performance 3D printing scenarios. -
Question:
Are LM8UU Bearings noise-free during operation?
Answer: When properly installed and maintained, LM8UU Bearings can operate with minimal noise. Their design helps to reduce friction, which in turn minimizes sound during operation. This quiet performance is especially favorable for projects where noise levels are a concern, such as in home studios or laboratories where CNC machines or 3D printers are used. -
Question:
Where can I buy LM8UU Cylinder Linear Motion Ball Bearings in Jersey?
Answer: You can buy LM8UU Cylinder Linear Motion Ball Bearings at Ubuy. They offer a variety of options and fast service for this type of product. Whether you're looking for a set for a DIY project or replacements for existing equipment, Ubuy is a reliable source to acquire high-quality LM8UU bearings, ensuring that your projects run smoothly and efficiently.
Aopin Linear Ball Bearings Editorial Review
LM8UU Cylinder Linear Motion Ball Bearing, ID 8mm, OD 15mm Linear Ball Bearings Sae52100 Carbon Steel, 4 Rows of Steel Balls, Great for CNC, 3D Printer, Linear Rail Guide 4 PCS offers impressive functionality for users requiring reliable linear motion components. With its construction from alloy steel and a tight tolerance on the rod, these bearings provide smooth sliding and quiet operation, making them ideal for CNC machinery and 3D printers. Customers express satisfaction with their performance, noting they outshine other brands in both sliding ease and noise levels. Despite a minor concern about separate shipping of multiple items, the overall value and performance of these bearings stand out in user feedback.
Customer Reviews & Ratings
20 customers ratings
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5 Star
43%
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4 Star
35%
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3 Star
14%
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2 Star
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1 Star
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Pros
- Smooth operation with low noise
- Tight tolerance for precise movement
- Suitable for CNC and 3D printing
- Made from durable alloy steel
- Easy to install and replace
Cons
- A few concerns about shipping delays observed.
Platform Trust & Buyer Confidence
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9 September 2026 · via Trustpilot
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11 September 2026 · via Trustpilot
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“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
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GBP 22
Order now and get it around Tuesday, October 13
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Features & Benefits
- Neatly arranged steel balls for smooth rolling and stable operation
- Durable high carbon steel material with double rubber seal for protection
- Precision manufacturing for high sensitivity and accuracy
- Provides freedom of movement in a single direction
- Low friction and stable linear motion
- Various sizes and quantities available for different applications
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