The Hot Dip Galvanized UB Clevis is a critical piece of hardware in power transmission lines, utilized to connect overhead conductors with insulator strings; it is widely deployed across transmission and distribution systems. Its primary function is to transmit both mechanical and electrical loads, while simultaneously serving a connecting and protective role. The UB Clevis serves as the initial fitting for suspension clamps across various voltage levels, constituting a pivotal component in the construction of a stable suspension system.
Structural and Functional Features
The UB Clevis features a dual-axis design-comprising upper and lower axes-that creates a spatially staggered rotational structure:
Upper Structure: Connects to the cross-arm via a long-shank bolt. This bolt is subjected to double-shear stress, resulting in superior load-bearing capacity.
Lower Structure: Employs a slotted connection mechanism, available in two configurations-single-plate and double-plate types-to facilitate easy interfacing with insulator strings or other hardware fittings.
Rotational Axis Design: The upper section establishes a front-to-back rotational axis, while the lower section establishes a left-to-right rotational axis, with the two axes intersecting at a 90° angle. This design enables the suspension plate to accommodate multi-directional displacement and oscillation, thereby enhancing the line's adaptability.
Difference Between Hot Dip Galvanized UB Clevises and Right-Angle Hanging Plates
| Comparison Item | UB Clevis | Right-Angle Mounting Plate |
| Function | Primarily used for securing and transmitting loads. | Allows for changes in connection direction (90° turn) |
| Directional Shift | Does not possess directional-changing capabilities. | Features directional adjustment capability |
| Application Scenarios | Commonly used in the assembly of overhead jumper strings. | Widely used in applications requiring a change in connection direction |
Technical specifications of the UB board
| Model | Main Dimensions (mm) | Rated Breaking Load (kN) | Weight (kg) |
| UB-7 | 18 × 16 | 70 | 0.75 |
| UB-10 | - | 100 | - |
| UB-12 | - | 120 | - |
| UB-16 | - | 160 | - |
Primary Applications
Connects overhead conductors to insulator strings.
Withstands specific tensile loads.
Suitable for the assembly of overhead jumper strings.
Serves as the initial fitting for suspension clamps across power lines of varying voltage levels.
Product Advantages
High Load-Bearing Capacity: Our Hot Dip Galvanized UB Clevis is available in a range of models, with rated ultimate tensile loads spanning from 70kN to 160kN, thereby meeting the requirements of diverse voltage levels and line conditions.
Optimized Structure: Features a double-shear stress design and a 90° staggered arrangement of the upper and lower axes, allowing it to accommodate line oscillation and minimize stress concentration.
Convenient Installation: Compatible with standard power line fittings, ensuring high efficiency during on-site assembly.
Reliable and Durable: Manufactured from high-quality steel and treated with a hot-dip galvanizing process for corrosion resistance, making it suitable for use in harsh outdoor environments.
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