0 ratings
Item #:
33832342
LM3UU Cylinder Linear Motion Ball Bearing, ID 3mm, OD 7mm Linear Ball Bearings Sae52100 Carbon Steel, 4 Rows of Steel Balls, Great for CNC, 3D
81% of respondents would recommend this to a friend
Item #:
33832342
XCD 72
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Wednesday, September 30
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Linear Bearing has low noise, smooth movement, low friction, high rigidity, and long service life, providing precise low-friction linear motion.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
High-Quality Steel
Crafted from SAE52100 carbon steel, ensuring durability and longevity. This material minimizes wear, making it ideal for high-performance applications like CNC machines and 3D printers.
Smooth Operation
Designed with four rows of steel balls for enhanced smoothness and motion stability. This reduces friction and increases overall efficiency in linear movement systems.
Versatile Compatibility
With a standard 5mm ID and 10mm OD, these bearings are suitable for various linear rail guides. Perfectly integrating with CNC and 3D printer setups, they offer great flexibility for users.
Product Details
| Brand Name | Aopin |
| Bearing Number | LM3UU |
| Bearing Type | Ball Bearing |
| UPC | 744337421564 |
| Part Number | LMK6UU |
| Manufacturer | Aopin-Hardware |
| Model | LMK6UU |
| Item Dimensions | 1 x 1 x 1.5 inches (2.5 x 2.5 x 3.8 cm) |
| Item Weight | 50 Grams |
| 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?
-
CNC Machine Users
Ideal for CNC machines requiring smooth and accurate linear motion for precision machining applications.
-
3D Printing Enthusiasts
Perfect for 3D printers needing reliable and stable movement along linear guides to enhance print quality.
-
Hobby Projects
Great for DIY projects needing compact and effective linear motion components for various mechanical setups.
-
Heavy Industrial Use
Not suitable for heavy-duty applications that require higher load-bearing capabilities beyond standard specifications.
Product Description
LM3UU Cylinder Linear Motion Ball Bearing, ID 3mm, OD 7mm Linear Ball Bearings Sae52100 Carbon Steel, 4 Rows of Steel Balls, Great for CNC, 3D Printer, Linear Rail Guide 2 PCS
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What are the dimensions of the LM3UU Cylinder Linear Motion Ball Bearing?
Answer: The LM3UU has an Inner Diameter (ID) of 3mm, Outer Diameter (OD) of 7mm, and Total Length (L) of 10mm. -
Question:
What applications are suitable for this ball bearing?
Answer: It is ideal for use in 3D printers, CNC machines, linear slides, electronic equipment, and other linear motion units or modules. -
Question:
What is the load capacity of the ball bearing?
Answer: The Dynamic Load Rating (C) is 88.2N, and the Static Load Rating (Co) is 108N. -
Question:
What is the outer diameter tolerance of Aopin linear bearings?
Answer: The outer diameter tolerance is +0mm (positive tolerance) and -0.015mm (negative tolerance).
Aopin Linear Ball Bearings Editorial Review
No editorial reviews found
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- High precision
- Durable materials
- Smooth operation
- Great for CNC
- Compact size
Cons
- Limited load capacity
Platform Trust & Buyer Confidence
JG
Jazz
Verified buyer
“Easy to use and always helpful and sorts any issues I've had past and present”
1 September 2026 · via Trustpilot
EK
Emmanuel
Verified buyer
“I always receive support when I engage customer service. Overall my experience with UBUY has been top notch. Keep up the good work.”
31 August 2026 · via Trustpilot
F
fnd
Verified buyer
“The delivery was fast and the product came undamaged and authentic.”
29 August 2026 · via Trustpilot
LC
Leana
Verified buyer
“Ubuy is extremely efficient and to order online is an easy process. The verity of products to buy is really unlimited! My order was urgent and I got it on time. The products are great! Thank you Ubuy!”
25 August 2026 · via Trustpilot
HL
Hengo
Verified buyer
“Fast, convenient and cheap. Great store!”
27 August 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
XCD 72
Order now and get it around Wednesday, September 30
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- Linear Bearing Model: LM3UU, ID: 3mm, OD: 7mm, L: 10mm
- Applications: Ideal for 3D printers, CNC, linear slides, etc.
- Interchangeable and standardized design for easy maintenance
- Durable bearing steel material with pre-lubrication
- Equipped with contact seals prevent contaminants from entering
- Dynamic Load Rating (C): 88.2N, Static Load Rating (Co): 108N
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.