LR5204

LR5204 is a double-row track roller bearing specially designed for industrial medium and heavy-duty rolling working conditions, adopting an integrated double-row rolling element structure. Its core product specifications are inner diameter 20mm, outer diameter 52mm and width 20.6mm. The overall structure is compact with excellent rigidity and a reasonably designed bearing surface, which can bear heavy radial loads in a limited installation space with a low rolling friction coefficient. It is suitable for rolling support and guide rail traveling mechanisms of various equipment, can be directly matched with the corresponding shaft diameter for installation, featuring convenient assembly and strong adaptability, which effectively improves the operational stability of the 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 of 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, can effectively resist abrasion, crushing and intermittent micro-impacts under medium and heavy-duty working conditions, ensure the structural stability of the bearing during long-term continuous operation, and meet the continuous operation requirements of medium and heavy equipment in various industries. The bearing is equipped with a high-precision stamped steel cage with double rows of rolling elements evenly distributed, which can efficiently disperse loads, avoid local stress concentration, reduce friction and jamming between rolling elements, lower operating noise and improve the smoothness of heavy-duty operation.

In terms of lubrication configuration, the LR5204 track roller bearing adopts lithium-based grease lubrication as the standard configuration, equipped with heavy-duty extreme pressure lithium-based grease. The grease has strong adhesion, excellent extreme pressure resistance, and good high and low temperature adaptability, which can be used stably under conventional industrial working conditions of -20℃ to 120℃. After filling, it can form a high-strength lubricating protective film between the raceway and rolling elements, isolate direct metal contact and greatly reduce the friction coefficient under heavy-duty rolling. The grease has good retention, is not easy to lose in working conditions, and has a long maintenance cycle, effectively controlling the daily maintenance cost of the equipment. If in special working conditions such as high temperature, heavy dust and water, special high-temperature/waterproof lithium-based grease can be replaced as needed, and accessories such as sealing rings and dust covers can be matched to further improve environmental adaptability.

As a medium and heavy-duty track roller bearing, LR5204 features strong radial load bearing capacity, and can bear both heavy radial load and slight bidirectional axial load at the same time, adapting to various medium and heavy-duty rolling support scenarios. Its rated static load reaches 49kN and rated dynamic load is 32.5kN, which can stably cope with various load forms such as continuous medium and heavy loads and intermittent impact loads. The limiting speed of the bearing under grease lubrication condition is 4000r/min, and the actual service speed can be flexibly adjusted according to the installation accuracy and load size of the equipment. It is generally suitable for medium and low speed medium and heavy-duty rolling operation scenarios, and is a core basic component for rolling support of industrial medium and heavy-duty equipment.

With the advantages of strong medium and heavy-duty bearing capacity, good structural rigidity and excellent wear resistance, the LR5204 double-row track roller bearing is widely used in medium and heavy equipment in many industries. Its core application fields include the logistics conveying equipment industry (traveling and roller support of roller conveyors, automatic sorting lines and automated storage and retrieval system stackers), the automation equipment industry (guide rail rollers of industrial robots and precision manipulators, rolling support of tooling fixtures in automatic production lines), the engineering machinery industry (traveling mechanisms of small excavators, loaders and forklifts, lifting and translation rollers of construction machinery), the light industrial machinery industry (material feeding mechanism rollers of large printing and packaging machinery), the metallurgical machinery industry (rolling support of metallurgical auxiliary machinery and light conveying roller tables), and the machine tool equipment industry (guide rail traveling and tooling positioning rolling components of small and medium machine tools), etc. Different styles such as open type, 2RS double-sided rubber seal and NPPU nylon cage seal can be flexibly selected according to working condition requirements to meet the use needs of different scenarios.

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