The miniature through hore slip ring is a connectivity component designed for space-constrained environments. It has a typical microstructure, with an inner diameter (ID) of 3mm and an outer diameter (OD) of 18mm, and is very lightweight. We use it in super sensors, detection equipment inside pipelines, or avionics instruments, etc.

Drawing(mm)

Picture

Drawing

Product Parameters

Mechanical:

Working speed	500rpm
Operating temperature	-40℃~ +100℃
Contact material	Precious metal
IP Grade	IP 54

Electrical:

Circuit	2 & 6 & 8
Current	2A
Voltage	≤380V
Dielectric strength	≥1000V@50Hz between each circuit
Insulation resistance	1000MΩ@ 500VDC
Electric noise	≤7mΩ
Lead wire size	26AWG, UL, color Teflon, silver or tin plated
Lead wire length	200mm

Dimension:

Type

Standard Rings

Length

BTH0318-2

12mm

Φ3mm

Φ18mm

BTH0318-6

BTH0318-8

6 & 8

20mm

Φ3mm

Φ18mm

Application Scenario

The miniature through hore slip ring is best suited for applications that require high dimensional accuracy. Here are some of the main ones:

Micro Wind Turbines

When used in small wind turbines in the yaw and pitch systems, this slip ring helps control the yaw and pitch mechanisms.

Communications

These mainly refer to antennas and satellite equipment, especially small rotating antennas and micro satellite systems.

Industrial Automation

Miniature turntables and compact actuators transmit power and signals through these small slip rings, as well as positioning and movement control signals.

Robotics

This slip ring can be used in small robotic arms and rotating joints of robots. It helps control actuators and sensors and assists them in achieving continuous rotation without tangling wires.

FAQ

Q: What are these through bore slip rings used for?

A: Miniature through hore slip rings are used in applications that require bore space for other capabilities, such as a rotating shaft, cooling, air media, optical or RF channels, and more. The slip ring can be designed to fit a variety of bore sizes.

Q: Is it possible to restore slip rings at the end of their service life?

A: Whether or not restoration is advisable must be decided in each individual case depending on the design and the condition of the slip ring. Restoration or rework may well be possible in certain circumstances.

Q: What is the default temperature range for slip ring transmitters?

A: The temperature resistance of the weakest component determines the temperature range of a slip ring. The large number of customer-specific slip rings complicates the definition of a default temperature range. Our operating temperature range -40°C … +100°C can be taken as a rough guide.

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