SA Series Rod End Bearings - Product Introduction (Professional Condensed Version)
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Product Overview
The SA series rod end bearings are external-thread type rod end bearings, adopting an external thread shank + spherical sliding core structure. They are mainly suitable for mechanical linkage, oscillation and low-speed rotation transmission under medium and heavy load conditions, which can stably realize component connection and compensate for installation deviations, avoiding damage to equipment caused by assembly stress. Widely used in automation equipment, construction machinery, vehicles and general industrial equipment, they are general basic components for medium and heavy load linkage transmission scenarios.
Structure and Features
● External Thread Structure (SA Standard Type): Adopts standard metric external thread design, easy to install and flexible to adjust connection length through threads. Supports both left-hand and right-hand threads to meet different assembly direction requirements. Thread accuracy meets 6H/6g, ensuring firm connection and no easy loosening.
● Spherical Sliding Design: The inner ring with outer spherical surface is precisely matched with the outer ring with inner spherical surface, processed by precision grinding and polishing. It can realize angular compensation and flexible oscillation, effectively reducing stress caused by assembly deviations and avoiding component jamming or wear.
● High Load-Bearing Sliding Pair: Adopts steel-on-steel or steel-on-bronze sliding pair scheme, with strong load-bearing capacity and excellent wear resistance. Suitable for continuous or intermittent oscillation conditions, it can stably bear medium and heavy loads, meeting the long-term operation needs of industrial equipment.
● Special Lubrication Structure: Reserved lubrication grooves and oil injection holes support regular grease filling, which can form a stable oil film on the sliding surface, reduce friction loss, significantly extend bearing service life, and adapt to industrial scenarios requiring regular maintenance.
● Compact Structure and Excellent Rigidity: The shank is processed by integral forming technology, with strong overall rigidity and outstanding anti-vibration and anti-impact performance. Suitable for industrial working conditions with high-frequency vibration, it is not easy to have shank bending or fracture problems.
Key Performance
● Oscillation Angle: The oscillation angle of conventional specifications is ±10°～±15°, slightly different for different sizes, which can meet the oscillation transmission needs of most medium and heavy load scenarios.
● Load-Bearing Capacity: The radial and axial rated loads strictly comply with the ISO/GB standards for rod end bearings, suitable for medium and heavy load conditions, and can match the corresponding load requirements according to specific specifications.
● Operating Temperature: The applicable temperature range is -30℃～+120℃, depending on the type of grease used, which can adapt to most industrial normal temperature and medium-low temperature scenarios.
● Accuracy Grade: Processed with standard accuracy grade, the dimensional tolerance is controllable, meeting the assembly and transmission accuracy requirements of most industrial equipment, with strong versatility.
Typical Applications
● Linkage mechanisms of automation equipment (robot arms, transmission joints of conveyor lines, etc.)
● Machine tool feed and clamping mechanisms, ensuring precise transmission and positioning of machine tools
● Control links of construction machinery (control components of excavators, loaders, etc.)
● Automotive suspension and steering links, improving driving stability and control reliability
● Transmission components of agricultural machinery and material handling equipment
● General mechanical transmission and execution systems, adapting to various medium and heavy load linkage scenarios
Installation and Maintenance
● Tighten with specified torque during installation to avoid overload installation or shank bending. After installation, manually check the oscillation flexibility, and start the equipment only when there is no jamming.
● It is recommended to use extreme pressure grease, and regularly refill grease according to the equipment operating conditions to ensure sufficient lubrication of the sliding surface and avoid increased wear caused by dry friction.
● Keep the sealing components intact to prevent dust, moisture and other impurities from entering the bearing. Replace the seal in time when it is damaged to avoid internal rust or wear.
● Regularly check for bearing wear, abnormal operation noise, increased friction and other abnormalities. When the radial clearance exceeds the limit, replace the bearing in time to avoid fault expansion.
Summary
The SA series rod end bearings combine the convenience of external thread installation, high load-bearing capacity and reliable oscillation performance. With compact structure and simple maintenance, they are produced in strict accordance with industry standards and are suitable for various medium and heavy load linkage transmission scenarios. Their integral forming shank and precise spherical matching design can ensure long-term stable operation of equipment, widely adapt to industrial equipment in automation, construction machinery, automotive and other fields, and are an ideal choice for linkage transmission in medium and heavy load scenarios.
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