Do you know about linear bearings?

‌Linear bearing is a linear motion system used in conjunction with a cylindrical shaft for linear stroke‌.

‌Features‌:

• Small friction and stable: The bearing ball is in point contact with the outer shell of the bearing, and the steel ball rolls with minimum friction resistance and does not change with speed.
• High precision and high sensitivity: Smooth linear motion can be obtained.
• Limitations: Poor impact load and bearing capacity, large vibration and noise at high speed.

Structure‌:

• Mainly composed of bearing outer ring, cage, steel ball and sealing ring.
• The cage is equipped with multiple balls, and the balls move in an infinite cycle.

Application‌:

• Widely used in sliding parts of industrial machinery such as precision machine tools, textile machinery, and food packaging machinery.
• Applicable to mechanical equipment, automation equipment, energy-saving equipment, etc. that require high precision and smooth movement. ‌Working principle of linear bearings.

The working principle of linear bearings is based on the principle of rolling friction. It uses rolling elements (such as balls and rollers) to roll between the bearing seat and the guide shaft to achieve linear motion of objects. Specifically:

• Rolling support‌: The bearing is equipped with a cage inside, which evenly separates the rolling elements and guides them to circulate on the correct path. When the shaft moves, the rolling elements roll between the shaft and the bearing seat, providing support and reducing friction.
• Lubrication‌: The inside of the bearing is usually coated with lubricating oil or grease to form a lubricating film, which further reduces friction and allows the shaft to move smoothly.
• ‌High-precision movement‌: Since the bearing ball is in point contact with the shaft, the friction resistance is small, so high-precision smooth movement can be achieved‌.

The linear bearings produced by Zhejiang Mingxu Machinery Manufacturing Co., Ltd. are of various models and can be divided according to different classification standards. They mainly include standard type, clearance adjustment type, open type, extended type, flange type, etc. Specifically:
‌By specification and standard: divided into two series, LM and LME, which are suitable for Asia, Southeast Asia, Europe, the United States and other regions, respectively, with different size and aperture tolerances.
‌By shape: can be divided into straight type, flange type (round, square, trimmed type), open type (large opening, small opening), etc.
‌By performance: divided into ordinary type and super type, the latter is suitable for long life and large load occasions.
In addition, there are many special models, such as copper sleeve, nickel plating, chrome plating, etc., as well as flange extension type, flange type with guide end, KH simple type, OB self-lubricating type, etc. These models meet the diverse needs of different mechanical equipment for linear bearings in customer working conditions.