Description
Product Overview
The CU4440 is a high-performance bearing specially designed for industrial gear reducers and transmission systems. This bearing combines high load capacity, excellent wear resistance, and stable operating accuracy, making it suitable for heavy-duty, low-speed, or medium-speed applications. With optimized material selection and lubrication design, the CU4440 provides reliable performance and long service life even under continuous operation.
Product Features
The CU4440 bearing offers high load capacity, exceptional wear resistance, and outstanding operational stability, making it a high-performance solution for heavy-duty, low- and medium-speed applications. Its rolling elements and raceways are precisely ground and geometrically optimized to maintain low friction and noise even under high loads, thereby improving transmission efficiency and service life. Manufactured from high-purity alloy steel and treated with advanced heat processes, the bearing maintains excellent dimensional stability and fatigue strength under long-term cyclic stresses. Its high structural rigidity ensures accurate shaft support and precise gear meshing in gear reducer assemblies. The reinforced sealing and lubrication system, compatible with oil bath, grease, or forced lubrication, ensures reliable performance in high-temperature, dusty, and heavy-load environments—extending maintenance intervals and enhancing overall system reliability.
Product Application
The CU4440 bearing is widely used in various industrial transmission systems, especially in high-torque, heavy-load, and long-duty applications, such as:
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Industrial gear reducers and gearboxes
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Mining and conveying machinery
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Metallurgical and rolling mill equipment
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Cement and building material machinery
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Wind turbine and large-scale drive systems
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Industrial automation and robotic reduction units








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