The rubber sleeve used for cable connectors is commonly referred to as a grommet

Grommets are essential components in electrical and automotive applications, providing protection and insulation for cables and wires where they pass through panels or enclosures. These rubber sleeves are designed to shield the cables from sharp edges, prevent abrasion, and seal the openings to maintain environmental integrity.
When selecting a grommet for a specific application, it's important to consider factors such as the cable diameter, panel thickness, and environmental conditions to ensure proper fit and performance. Different types of grommets are available, including snap-in grommets, split grommets, and self-sealing grommets, each serving specific installation requirements.
In electrical and automotive industries, grommets play a crucial role in maintaining the safety and efficiency of cable connections by mitigating the risks associated with exposed wiring and ensuring compliance with industry standards for insulation and protection.
Furthermore, grommets are often made from various materials, including rubber, silicone, or plastic, with rubber being the most commonly used material due to its flexibility, durability, and resistance to environmental factors. Silicone grommets are preferred for applications involving extreme temperatures, while plastic grommets offer specific advantages such as chemical resistance and lightweight construction.
To install a grommet, the cable or wire is first routed through the grommet before the grommet is inserted into the intended opening. Proper installation ensures a snug and secure fit, effectively sealing the passage while accommodating the movement and vibration of the cables.
Regular inspection and maintenance of grommets are recommended to check for wear, degradation, or damage that could compromise their effectiveness. Timely replacement of worn or damaged grommets safeguards the integrity of cable connections and contributes to the overall safety and reliability of electrical and automotive systems.
In summary, the rubber sleeve used for cable connectors is known as a "grommet" in English. Grommets are integral components for protecting and insulating cables in electrical and automotive applications, and they are available in various types and materials to suit specific installation requirements. Understanding the purpose and proper use of grommets is essential for maintaining the safety and integrity of cable connections in a wide range of industrial and commercial settings.