LR5307

LR5307 is a double-row track roller bearing specially designed for heavy industrial equipment, adopting a high-strength integrated structure with double-row rolling elements. Its core product specifications are inner diameter 35mm, outer diameter 90mm and width 34.9mm. The overall structure has extremely high rigidity and a large bearing surface, which can bear ultra-heavy radial loads in a limited installation space with a low rolling friction coefficient. It is suitable for track rolling and support mechanisms of various heavy equipment, with strong installation adaptability, and can be directly matched with the corresponding shaft diameter and mounting surface, greatly improving the assembly efficiency and operation stability of heavy equipment.

The core components of the bearing are all forged and precision machined from GCr15 high carbon chromium bearing steel. After the blank is subjected to professional heat treatment processes such as quenching and low-temperature tempering, the surface hardness of the raceways and rolling elements reaches HRC60-64, and the internal metallographic structure is uniform and dense. It has excellent wear resistance, fatigue resistance and impact resistance, and can effectively resist abrasion, crushing and high-intensity impact damage under heavy-duty working conditions, ensuring the structural stability and service life of the bearing during long-term continuous heavy-duty operation, and meeting the stringent operation requirements of heavy equipment in metallurgy, engineering machinery and other industries. The bearing is equipped with a high-precision stamped steel cage, with double rows of rolling elements evenly distributed, which can maximize load dispersion, avoid local stress concentration, reduce friction, collision and jamming between rolling elements, lower equipment operation noise, and improve the smoothness of the bearing's heavy-duty operation.

In terms of lubrication configuration, the LR5307 track roller bearing adopts lithium-based grease lubrication as the standard configuration, equipped with heavy-duty extreme pressure lithium-based grease as standard. This grease has super strong adhesion, extreme pressure resistance and high and low temperature adaptability, and can be used stably under conventional industrial working conditions of -20℃ to 120℃. After filling, it can form a high-strength, extrusion-resistant lubricating protective film between the raceway and rolling elements, completely isolating the direct friction of metal contact surfaces, greatly reducing the friction coefficient under heavy-duty rolling and reducing component wear. In addition, the grease has good sealing retention, is not easy to lose under heavy-duty and low-speed working conditions, and has a long maintenance cycle, which can effectively control the daily maintenance cost of heavy equipment. If the equipment is in special harsh working conditions such as high temperature, heavy dust, water and excessive powder, the grease can be supplemented or replaced with special high-temperature and waterproof lithium-based grease as needed, and protective accessories such as dust covers and double-sided sealing rings can be matched at the same time to further improve the environmental adaptability and use stability of the bearing.

As an ultra-heavy track roller bearing, LR5307 features super strong radial load bearing capacity, and can bear both ultra-heavy radial load and slight bidirectional axial load at the same time, adapting to various industrial ultra-heavy rolling support scenarios. Its rated static load reaches 162kN and rated dynamic load is 94kN, which can stably cope with various load forms such as continuous ultra-heavy load and intermittent high-intensity impact load, fully meeting the ultimate bearing requirements of heavy equipment. Under the conventional working condition of grease lubrication, the limiting speed of the bearing is 2400r/min, and the actual service speed can be flexibly adjusted according to the equipment installation accuracy, load size and working condition environment, which is generally suitable for low-speed, ultra-heavy rolling operation scenarios, and is a core basic component for rolling support of various heavy industrial equipment.

With ultra-heavy load bearing capacity, super structural rigidity, excellent wear resistance and impact resistance, the LR5307 double-row track roller bearing is widely used in heavy core equipment in many industries. Its core application fields include the metallurgical machinery industry (rolling support of steel rolling equipment, metallurgical conveying roller tables, silo unloading mechanisms and metallurgical cranes), the engineering machinery industry (traveling mechanisms and guide rail support of large excavators, loaders, bulldozers and cranes, lifting and translation rollers of heavy construction machinery), the heavy conveying equipment industry (roller support of large belt conveyors, heavy roller conveyors and heavy conveying equipment in ports and terminals), the mining machinery industry (rolling support components of mining equipment, heavy mineral processing equipment and mining conveying machinery), the heavy machine tool industry (guide rail rolling support and fixture positioning mechanism of large CNC lathes and gantry milling machines), and the port machinery industry (traveling and support rollers of port cranes, container handling equipment and gantry cranes), etc. At the same time, it can be adapted to heavy-duty rolling mechanisms of various heavy automatic production lines and large automated storage and retrieval system stackers, and is an indispensable key supporting component in industrial heavy equipment. According to the actual working condition requirements of the equipment, different styles such as open type, 2RS double-sided rubber seal and NPPU nylon cage seal can be flexibly selected to meet the use requirements of different harsh scenarios.

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