Precise detachable liner

Removable bushing is a detachable positioning connector used between bearings and shafts, bearing seats and bearing outer rings. Its core function is to achieve precise installation, positioning and convenient disassembly of bearings. It is widely used in industrial transmission scenarios that require frequent maintenance or large interference fit. Its core features and application areas are as follows:

1、 Core characteristics of removing the liner

The precise positioning and interference fit adjustment of the release liner adopts a conical structure design, which is usually matched with the conical surface of the tightening sleeve, bearing inner ring or shaft neck. By tightening the nut to apply axial force, the liner produces uniform radial expansion, thereby achieving interference fit fixation between the bearing and the shaft, ensuring the coaxiality of the shaft and the bearing, and avoiding eccentricity and movement during operation. At the same time, the tightening degree of the nut can be adjusted to fine tune the fit tightness and adapt to the needs of different load conditions.

Convenient disassembly and reduced maintenance costs are the most prominent advantages of removing bushings. When it is necessary to replace bearings or maintain the shaft system, simply loosen the locking nut and apply reverse force with specialized disassembly tools (such as disassembly wrench, hydraulic puller) to shrink the bushing, relieve interference fit, and easily remove the bearing from the shaft without destructive operations such as knocking or cutting, greatly reducing maintenance time, minimizing damage to the shaft and bearings, and reducing equipment shutdown losses.

Compact structure, strong adaptability. The removable liner has a small volume and light weight, and will not occupy too much space after installation. It can adapt to various types of bearings such as deep groove ball bearings, self-aligning roller bearings, cylindrical roller bearings, etc., and can be matched with different specifications of shaft necks and bearing seats. It is widely used in small and medium-sized transmission equipment. At the same time, its structural design has a high degree of standardization and can directly replace products of the same model, making it highly versatile.

The bearing capacity is stable and the operation is reliable. The lining material is mostly made of high-quality carbon steel or alloy steel, which has high strength and hardness after quenching, tempering and other heat treatment processes. It can withstand the radial and axial loads transmitted by the bearings, and is not easily deformed or worn under heavy load and high-speed conditions, ensuring the stable operation of the transmission system. Part of the lining surface will undergo rust prevention treatment to enhance its corrosion resistance in humid and dusty environments.

The installation threshold is low, the operation is simple, and the installation of the removal liner does not require complex specialized equipment. It only needs to tighten the nut according to the standard steps to complete the fixation. The technical requirements for the installation personnel are relatively low, which is suitable for rapid assembly and maintenance on site.

2、 Typical application areas for dismantling bushings

The roller shaft ends of mining and building materials equipment crushers, ball mills, vibrating screens, and conveyors often have interference fit bearings and shafts, and require regular maintenance and replacement of bearings. Removing the liner can achieve rapid disassembly and assembly of bearings, reducing equipment downtime.

The main shaft bearings of small and medium-sized motors in motors and reducers, as well as the output shaft bearings of reducers, can be accurately positioned by removing the bushings. At the same time, it is convenient for later maintenance and repair of motors and reducers, avoiding damage to the shaft body due to improper disassembly.

The slewing bearings of construction machinery loaders and excavators, as well as the bearings of their walking mechanisms, require frequent maintenance in outdoor work environments. The convenient disassembly of the removal liner can improve on-site maintenance efficiency and adapt to complex operating conditions.

The drying cylinder and roller shaft end bearings of paper making and printing machinery, as well as the drum bearings of printing machines, require high transmission accuracy. Removing the liner can ensure the coaxiality of the bearings and facilitate the replacement of worn bearing components, ensuring production continuity.

The transmission shaft bearings of agricultural machinery harvesters and straw crushers are susceptible to damage from dust and impurities in harsh operating environments. The removal of the bushing allows for quick disassembly of the bearings for cleaning or replacement, meeting the outdoor maintenance needs of agricultural machinery.

The roller bearings of textile and light industry equipment, such as the roller shaft of textile machines and the conveyor roller bearings of packaging machines, are mostly used in high-speed and light load conditions. The precise positioning characteristics of the unloading liner can ensure the accuracy of equipment operation, and the disassembly and maintenance are convenient without affecting production progress.