The core function of a slip ring is to transmit signals, data, and power between components that rotate 360 degrees continuously and stationary parts, preventing wire entanglement and breakage during rotation.
In karting, slip rings are primarily used between the following two components requiring relative rotation:
1.Between the Steering Wheel and the Steering Column
- What is Transmitted:Signals from buttons on the steering wheel (such as DRS, radio, pit lane speed limiter) and paddle shift signals.
- Why it’s Needed:The steering wheel of a modern racing kart is no longer a simple ring but an integrated “control center” with multiple buttons and displays. If the wiring couldn’t rotate, the harness would twist and break after just a few turns of the wheel. The slip ring ensures the steering wheel can rotate indefinitely while maintaining all electronic functions.
2.Between the Hub Motor and the Chassis (in Electric Karts)
- What is Transmitted:Power for the drive motor and sensor signals from the motor (such as speed, temperature).
- Why it’s Needed:If the kart uses a hub motor and the motor itself turns with the wheel (as part of the steering knuckle), the wiring harness connected to the motor needs to avoid entanglement during steering and suspension movement. A slip ring can be installed at this rotational point.
II. Common Types of Slip Rings Used in Karting
Depending on the kart’s level and requirements, the following types of slip rings are mainly used:
1.Capsule Slip Rings
- Shape:Resembles a flat cap, typically mounted directly onto the top end of the steering column, with the steering wheel then fixed to the slip ring.
- Advantages:Compact structure, easy installation. This is the most common and mainstream type in the racing kart sector.
- Circuit Channels:Usually provides 6-24 circuits, sufficient for buttons, paddle shifters, and simple displays.
2.Through-Bore Slip Rings
- Shape:Features a central through-hole, allowing the steering column or other shafts to pass through the center.
- Application:Used if wiring harnesses or other components need to pass throughthe steering column. Relatively less common in karts, more frequently used in industrial robots and similar equipment.
3.Miniature Slip Rings / Separate Slip Rings
- Application:Used in applications with extremely limited space or for non-steering-column purposes, such as sensor signal transmission in small electric karts.
Product Highlight: Ingiant Technology’s DHK039-2-25A Slip Ring
Ingiant Technology’s DHK039-2-25A is a through hole slip ring specifically designed for high-performance electric karts and small racing vehicles. Its core feature is the stable transmission of robust electrical currents 25A, ensuring uninterrupted power and control signals even during unlimited steering wheel rotation. This slip ring boasts a compact structure with a 39mm inner diameter, facilitating easy integration into the steering column system. Its 2 independent pathways provide a simple and efficient solution for power and signal transmission.
Particularly notable is its aviation connector interface, which offers military-grade connection reliability, excellent vibration resistance, and quick plug-and-unplug capability, significantly enhancing vehicle assembly efficiency and maintenance convenience. The DHK039-2-25A is an ideal choice for kart manufacturing that prioritizes power, safety, and professionalism.
Post time: Nov-06-2025