Dongguan Lihao Bearing Co., Ltd
Dongguan Lihao Bearing Co., Ltd (BLH Bearing), established in 2005, is located in the global manufacturing hub of Dongguan, China. We specialize in stainless steel bearings, deep groove ball bearings, industrial plastic bearings, ceramic bearings, precision special non-standard bearings, and rubber-coated sliding wheel pulleys, all featuring high performance, low noise, and corrosion resistance.
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![Linear Roller Bearings]()
Linear Roller BearingsLinear roller bearings are essential components in many machines and mechanical systems. They play a key role in achieving smooth, precise linear motion in heavy-duty linear guideways. These recirculating ball bearings are designed to -
![LM10UU Bearing]()
LM10UU BearingThe LM10UU linear bearing from BLH Bearings features a stainless steel design. The linear bearing and guideway combination is suitable for both positioning and non-positioning arrangements, with unlimited travel. In a closed arrangement, -
![LM16UU Bearing]()
LM16UU BearingLinear ball bushing bearings are essential for systems requiring precise linear motion. Linear roller bearings, available in a variety of materials and designs, can handle heavy loads, high speeds, and quiet sliding. Understanding the -
![Round Flange Linear Bearing]()
Round Flange Linear BearingThe LMF flanged linear bearing series features a circular flange and evenly spaced mounting holes, making it suitable for applications with primarily radial loads in linear motion systems. Circular flanged linear bearings are a popular -
![Square Flange Linear Bearing]()
Square Flange Linear BearingThe LMK flanged linear bearing series features a square flange for more secure mounting and enhanced torque resistance, making it suitable for applications with primarily radial loads in linear motion systems. The tight fit of the flange -
![LMH20UU Bearing]()
LMH20UU BearingThe LMH series flanged linear bearings, developed by BLH Bearings, offer an optimized structure that perfectly balances installation efficiency, motion stability, and space utilization, making them an ideal choice for automation upgrades.
why choose us
Excellent Testing Equipment
BLH Bearing has its own independent laboratory, a complete R&D system, and a full range of testing equipment.
The Most Competitive Prices
With 60 sets of automated production lines, BLH Bearing can easily meet large-scale demand and provide the most competitive price guarantee.
One-Stop Solution
We offer one-stop solutions for global transmission equipment needs.
Our Service
Our professional bearing R&D capabilities, manufacturing strength, and 24/7 technical and after-sales service ensure that your transmission business is fully supported — with complete peace of mind.
Linear bearings are essential mechanical components that facilitate smooth and precise linear motion in a straight line. They are designed to support and guide the movement of objects along a fixed path. Linear bearings consist of a stationary and moving object, between which the bearing balls or rollers move, reducing friction and enabling efficient motion. These bearings are available in various designs, such as ball bearings, roller bearings, and plain bearings, each suited for specific applications based on load requirements, speed, and precision needs.
The key benefits of linear bearings are precise linear motion, reduced friction, and smooth motion. Because of these benefits, linear bearings and rails are essential in many different industries, but particularly the manufacturing, automation, and robotic industries. With many different designs, there is always a solution for specific application needs.
》Bearing includes (1) Sliding Bearing Block (Additional sliding blocks can be purchased separately)
》Standard length blocks and different Rail Lengths. Add Rails together to make very long Linear Bearings.
》750 lbs Max Loading per sliding block for the heavy duty Linear Bearing, down to 220lbs load for the mini series. Add more sliders to reduce weight if required.
》Temperature range -20 ~ 80℃
》High load capabilities
》Carbon steel rails as well and carbon steel bearings
》Tapped mounting holes on the sliding block
》Frequent through holes for rail mounting.
》Very affordable and versatile, ideal for many applications from Home Automation to Industrial Automation
|
Bearing No. |
Number Of Ball |
Main Dimensions(mm) |
(μm) |
Basic Load Rating |
Weight |
|||||||||
|
Inscribed Circle |
Outer Diameter |
Length |
Out Locking Groove |
W |
Radial Clearance |
C(kgf) |
Co(kgf) |
g |
||||||
|
dr |
D |
Tolerance |
L |
Tolerance |
B |
Tolerance |
D1 |
Max |
||||||
|
LM4UU |
4 |
4 |
8 |
0/-11 |
12 |
0/-0.2 |
0/-0.2 |
-5 |
9 |
13 |
1.9 |
|||
|
LM5UU |
4 |
5 |
10 |
0/-11 |
15 |
0/-0.2 |
10.2 |
0/-0.2 |
9.6 |
1.1 |
-5 |
17 |
21 |
4 |
|
LM6UU |
4 |
6 |
12 |
0/-11 |
19 |
0/-0.2 |
13.5 |
0/-0.2 |
11.5 |
1.1 |
-5 |
21 |
27 |
7.6 |
|
LM8SUU |
4 |
8 |
15 |
0/-11 |
17 |
0/-0.2 |
11.5 |
0/-0.2 |
14.3 |
1.1 |
-5 |
18 |
23 |
10.4 |
|
LM8UU |
4 |
8 |
15 |
0/-11 |
24 |
0/-0.2 |
17.5 |
0/-0.2 |
14.3 |
1.1 |
-5 |
27 |
41 |
15 |
|
LM10UU |
4 |
10 |
19 |
0/-13 |
29 |
0/-0.2 |
22 |
0/-0.2 |
18 |
1.3 |
-5 |
38 |
56 |
29.5 |
|
LM12UU |
4 |
12 |
21 |
0/-13 |
30 |
0/-0.2 |
23 |
0/-0.2 |
20 |
1.3 |
-5 |
42 |
61 |
31.5 |
|
LM13UU |
4 |
13 |
23 |
0/-13 |
32 |
0/-0.2 |
23 |
0/-0.2 |
22 |
1.3 |
-7 |
52 |
79 |
43 |
|
LM16UU |
5 |
16 |
28 |
0/-13 |
37 |
0/-0.2 |
26.5 |
0/-0.2 |
27 |
1.6 |
-7 |
79 |
120 |
69 |
|
LM20UU |
5 |
20 |
32 |
0/-16 |
42 |
0/-0.2 |
30.5 |
0/-0.2 |
30.5 |
1.6 |
-9 |
88 |
140 |
87 |
|
LM25UU |
6 |
25 |
40 |
0/-16 |
59 |
0/-0.2 |
41 |
0/-0.2 |
38 |
1.9 |
-9 |
100 |
160 |
220 |
|
LM30UU |
6 |
30 |
45 |
0/-16 |
64 |
0/-0.3 |
44.5 |
0/-0.3 |
43 |
1.9 |
-9 |
160 |
280 |
250 |
|
LM35UU |
6 |
35 |
52 |
0/-19 |
70 |
0/-0.3 |
49.5 |
0/-0.3 |
49 |
2.1 |
-13 |
170 |
320 |
390 |
|
LM40UU |
6 |
40 |
60 |
0/-19 |
80 |
0/-0.3 |
60.5 |
0/-0.3 |
57 |
2.1 |
-13 |
220 |
410 |
585 |
|
LM50UU |
6 |
50 |
80 |
0/-19 |
100 |
0/-0.3 |
74 |
0/-0.3 |
76.5 |
2.6 |
-13 |
390 |
810 |
1580 |
|
LM60UU |
6 |
60 |
90 |
-0.022 |
110 |
0/-0.3 |
85 |
0/-0.3 |
86.5 |
3.2 |
-16 |
480 |
1020 |
1860 |
Precision
Linear bearings offer high precision, enabling accurate linear motion.
Load Capacity
Due to their superior design, the bearings can accommodate loads from multiple directions, significantly increasing their load capacity.
Rigidity
The circular four-row design of linear guideways provides enhanced rigidity, making them suitable for heavy-duty applications.
Self-Lubricating
Certain linear bearings feature self-lubricating components that reduce maintenance requirements and extend bearing life.
Versatility
A wide selection of linear bearings is available, suitable for various applications ranging from small electronic devices to large industrial machinery.
Noise Reduction
Linear bearings contribute to quieter machine operation. Since they produce less friction and vibration, they typically generate less operational noise compared to other types of bearings.
Efficiency
Their design enables linear bearings to operate at high speeds with minimal energy loss, making them an effective option for many motion control systems.
Types of Linear Bearings
Ball Linear Bearings
Use balls to reduce friction, allowing for smooth motion.
Slide Bearings
Use a sliding surface, often with lubrication, to minimize wear.
Roller Bearings
Utilize cylindrical rollers to support heavier loads and reduce friction.
Magnetic Linear Bearings
Use magnetic fields to facilitate movement without physical contact.
3D Printing: Linear bearings are essential in 3D printers, guiding the print head’s precise movements along the X, Y, and Z axis where smooth, low-friction, and accurate movement is required.
Factory Automation: In automated manufacturing processes, linear bearings enable smooth and accurate movements in robotic arms and conveyor systems.
Medical Devices: Linear bearings can often be found in medical imaging equipment, robotic surgery systems, and laboratory automation, ensuring precise and stable movements in critical medical applications.
High-Precision Machinery: Linear bearings are often utilized in semiconductor manufacturing equipment, CNC machines, and metrology tools for their ability to provide precise linear motion in micron-level increments.
How Long Do Linear Bearings Last?
The service life of a linear bearing depends on multiple variables, including:
Load
Heavier loads shorten bearing life due to increased contact stress.
01
Speed and Acceleration
Higher speeds can increase wear or cause overheating.
02
Lubrication
Proper lubrication prevents metal-to-metal contact and reduces wear.
03
Contamination
Dust, moisture, and chemicals can accelerate failure unless properly sealed.
04
Alignment
Misalignment increases uneven wear, leading to early breakdown.
05
Proper maintenance is crucial for extending the lifespan and performance of linear bearings.
Lubrication: Regular lubrication is essential for reducing friction and preventing wear and tear. The type and frequency of lubrication will depend on the bearing type and application.
Cleaning: Keeping the bearing clean and free from dust, dirt, and other contaminants can prevent damage and reduce friction.
Regular Inspection: Periodic examination of the bearing can help detect early signs of wear or damage and prevent further issues.
Our Honor
FAQ
As one of the leading linear bearings manufacturers and suppliers in China, we warmly welcome you to wholesale bulk linear bearings for sale here from our factory. All customized bearings are with high quality and competitive price.
