— SPHERICAL PLAIN BEARING —
Joint bearings, as a special type of spherical sliding bearing, have been widely used in various industrial fields due to their unique structure and excellent performance. The following is a detailed introduction to joint bearings:
Joint bearings are mainly composed of an outer spherical inner ring and an inner spherical outer ring. Their sliding contact surface is spherical, allowing for a certain degree of angular alignment error between the shaft and the bearing seat, while adapting to reciprocating tilting and swinging motion. This design enables the joint bearing to work normally even in situations with low speed and angular deviation, demonstrating strong self centering ability.
Joint bearings have various advantages, such as high load capacity, impact resistance, corrosion resistance, wear resistance, self centering, and good lubrication performance. It can withstand large radial and axial loads, especially performing well when subjected to impact loads and alternating loads. In addition, the inner and outer rings of joint bearings can be assembled using different materials after processing. Common combinations include steel to steel joint bearings and self-lubricating joint bearings to meet the needs of different working conditions.
Steel to steel joint bearings, after quenching, phosphating, and molybdenum dioxide treatment, have high wear resistance and strength, making them suitable for use under alternating loads, impact loads, and large static loads. And self-lubricating joint bearings are equipped with special self-lubricating talc ink assemblies, which do not require additional lubrication and are particularly suitable for heavy load conditions that are difficult to maintain lubrication.
The working temperature range of joint bearings is wide, usually maintaining stable performance between -30 ℃ and+80 ℃. During assembly and disassembly, special attention should be paid to avoiding direct load on the outer ring dividing surface, and auxiliary tools should be used to ensure even transfer of loading and unloading forces and avoid damaging the bearings.
Due to its unique performance and wide range of application scenarios, joint bearings have become indispensable key components in fields such as automotive, aerospace, industrial machinery, and agricultural machinery. Joint bearings play an important role in stable support and flexible rotation in engines, transmissions, steering systems, transmission systems, and hydraulic systems.
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