Linear Bearing

Your Professional Linear Bearing Supplier!

Zhejiang Zhongji Changsheng E-commerce Co., Ltd. was established in 2020 and mainly operates a bearing trading platform. The company now covers a full range of bearing and pneumatic component products, with a total of 1.5 million SKUs and a year-round spot inventory value of approximately RMB 20 billion. In 2023, the company's self operated automotive parts business was fully launched, mainly for chassis components such as automotive bearings, ball heads, swing arms, and stabilizer bars, and simultaneously launched a series of pneumatic component products.

IKO Linear Bearing
KO Linear Bearings are a type of precision bearing designed to allow for smooth, linear motion in a variety of applications.
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INA Linear Bearing
NA linear bearings are a type of rolling element bearing designed to provide linear motion in a specific direction.
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SKF Linear Bearing
SKF linear bearings are a type of rolling-element bearing designed to provide smooth and accurate linear motion in a variety of applications.
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SAMICK Linear Bearing
SAMICK linear bearings are machine parts that are designed to facilitate the smooth and precise movement of two surfaces in a linear motion.
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THK Linear Bearing
THK Linear Bearing is a type of bearing that is designed to provide smooth and accurate linear motion. It consists of a compact linear motion system that can be mounted and adjusted with precision.
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MCGILL Linear Bearing
MCGILL linear bearings are a type of linear motion bearing that is known for its precision, durability, and reliability. They are designed to provide smooth and accurate movement in a linear...
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Why Choose Us

Wide Range of Brands Covered

NSK, SKF, NTN, FAG, INA, KOYO, EZO, NMB, IKO, THK, TIMKNE, NACHI, MCGILL, ELGES, FYH, ASAHI, IJK, EAST, ROLLWAY, SAMICK, HRB, ZWZ, LYC, TR, BUT, ZHBR, YFA, HZY, QCS, and other well-known domestic and foreign brands. The bearing models of major brands are complete, and customers can purchase them in a one-stop manner.

Sufficient supply

The company now covers a full range of bearing and pneumatic components products, with a total of 1.5 million SKUs and a year-round spot inventory value of approximately RMB 20 billion.

High-quality service

We promise to provide genuine guarantee, stable supply, and a complete logistics system to ensure efficient procurement for customers.

Wide range of applications

The products are widely used in many industries such as engineering machinery, machine tools, automobiles, metallurgy, mining, petroleum, electricity and railways.

Our Best-Selling Linear Bearing

SAMICK Linear Bearing
SAMICK linear bearings are machine parts that are designed to facilitate the smooth and precise movement of two surfaces in a linear motion.

THK Linear Bearing
THK Linear Bearing is a type of bearing that is designed to provide smooth and accurate linear motion. It consists of a compact linear motion system that can be mounted and adjusted with precision.

MCGILL Linear Bearing
MCGILL linear bearings are a type of linear motion bearing that is known for its precision, durability, and reliability. They are designed to provide smooth and accurate movement in a linear direction.

Linear Bearing Specification

Product Type	Straight	Motion	Linear Motion
Outer Cylinder Material	Steel	Outer Cylinder Surface Finish	None
For Shaft Diameter(mm)	30	Overall Length L(mm)	64
Lubrication Type	Standard	Outer Diameter D(mm)	47
Length	Standard	Ball Recirculating Type	Single
Basic Dynamic Load Rating (Details)(N)	1,568	Basic Static Load Rating(N)	2,156
Precision	Standard Grade	Inner Contact Circle Tolerance (Negative Side)(mm)	-0.01

Benefits of Linear Bearings

Long Service Life with High Accuracy

With reduced friction and noise, linear bearings have a long lifespan with high movement accuracy over an unlimited stroke.

High load Capacity

Due to the stability of linear bearings components, it can withstand loads both horizontally and vertically.

Ease of Installation and Low Maintenance

Installing a linear bearing is easy. Simply slide the bearing onto the shaft and secure the shaft with shaft holders. With low friction, minimal maintenance is needed throughout the lifespan of a typical linear bearing application.

Ease of Lubrication

In traditional sliding systems, insufficient lubrication leads to wear on the contact surfaces. It can also be difficult to ensure adequate lubrication of the contact surfaces due to the difficulty of finding an appropriate grease injection point. In a linear bearing, both oil and grease can be applied.

Interchangeability

With standard specifications, linear bearings are easily interchangeable across brands.

Applications of Linear Bearing

CNC Machines: Linear bearings are integral components in CNC (Computer Numerical Control) machines, ensuring smooth and accurate movement of the cutting tools along predefined paths.

Industrial Robotics: Linear bearings play a crucial role in the joints and actuators of industrial robots, facilitating precise and controlled linear movements for tasks such as pick-and-place operations.

Linear Actuators: Linear actuators use linear bearings to convert rotary motion into linear motion, providing controlled movement in applications like automotive systems, medical devices, and home automation.

Automated Manufacturing Systems: Linear bearings are employed in various automated manufacturing processes, including conveyors, material handling systems, and assembly lines, where precise linear motion is required.

Medical Equipment: Linear bearings are used in medical devices such as diagnostic equipment, imaging systems, and robotic surgery systems to ensure precise and controlled movement.

Packaging Machinery: Linear bearings play a role in the linear motion components of packaging machines, ensuring accurate and repeatable movement in processes like filling, sealing, and labeling.

Aerospace Systems: In aerospace applications, linear bearings are utilized in mechanisms like landing gear, control surfaces, and satellite deployment systems to provide reliable and controlled linear motion.

Semiconductor Manufacturing: Linear bearings are employed in semiconductor manufacturing equipment for processes like wafer handling and precision positioning of components during fabrication.

Automotive Applications: Linear bearings find use in automotive systems, including steering systems, throttle control, and suspension components, where controlled linear motion is necessary.

Textile Machinery: Textile machines utilize linear bearings for the controlled movement of components in processes such as weaving, knitting, and fabric handling.

Rail and Transportation Systems: Linear bearings are crucial in rail and transportation systems, including high-speed trains and tram systems, where they ensure smooth and controlled movement of doors, seats, and other components.

Mining Equipment: Linear bearings are employed in mining machinery for applications like conveyor systems, drilling equipment, and material handling, providing reliable linear motion in challenging environments.

Store Linear Bearings

Some preventive measures should be taken to maintain their quality and performance when storing linear bearings.
The linear bearings should be stored in a dry, clean environment free from exposure to corrosive gases and direct sunlight.
The linear bearings should be kept in their original packaging and avoid stacking or collapsing with other objects.
During storage, the linear bearings should be regularly rotated to prevent lubricant loss and deformation of internal components.

Ordering Process

Consultation and demand analysis

Product selection and confirmation

Order placement and order review

Shipping and logistics tracking

Packaging and Shipping

Packaging	Plastic bag, wooden box
Transportation methods	Road transport, rail transport, sea transport, air transport

FAQ

Q: What is the purpose of a linear bearing?

A: At its core, a linear bearing is designed to provide a smooth, frictionless path for machine parts, ensuring efficient, straight-line motion. This efficiency is crucial in reducing wear and tear on moving parts, thereby extending the lifespan of machinery and enhancing overall performance.

Q: What is the lifespan of a linear bearing?

A: The rated lifespan of a linear bearing refers to the anticipated lifespan of the bearing in more than 10% of cases, based on a specific load and standard operating conditions, with 1 million reciprocating cycles. However, the actual lifespan May vary depending on the specific operating conditions.

Q: What is the 2:1 rule for linear bearings?

A: The binding ratio is often displayed numerically as “2:1,” where “2” is the moment arm distance and “1” is bearing length. For example, if 2x equals 10 inches then 1x must equal 5 inches. This rule applies to all plain bearings with cantilevered loads.

Q: How to maintain linear bearings?

A: Implement a strict & regular linear bearing maintenance schedule.
Preventive maintenance of your linear bearings.
Training your operators to identify early causes of linear bearing failure.
Conduct regular linear bearing inspections.

Q: What is the maximum speed of a linear bearing?

A: Linear bearings can reach a maximum speed of vmax = 5 m/s. The maximum permissible acceleration is amax = 100 m/s2. The permissible operating temperature range for continuous operation of linear bearings is from –20 to +80 °C and is determined by the cage and seal materials.

We're well-known as one of the leading linear bearing manufacturers and suppliers in China. Be free to wholesale high quality linear bearing in stock here and get quotation from our factory. Contact us for more details.

SAMICK Linear Bearing, SKF Linear Bearing, MCGILL Linear Bearing