Through-hole slip rings--BTH0932, also known as hollow shaft slip rings, are a special type of electromechanical component consisting of a rotating hollow shaft and a brush assembly fixed to the shaft. Its main function is to achieve continuous transmission of power, signals, etc. between the rotating body and the fixed body.
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In specific applications, when the rotating part (such as the motor /rotating shaft) passes through the central through hole of the slip ring, the circuit on the rotating part can be connected to the circuit of the fixed part through the brush, thereby maintaining uninterrupted electrical connection during rotation.
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360° continuous rotation
Through-hole slip rings-BTH0932 can achieve continuous transmission of signals, current, etc. during the rotation of the device.
Multiple signal transmission
Through-hole slip rings-BTH0932 can simultaneously transmit multiple types of signals, such as current, data, video, etc.
Easy Integration
Simple Mounting: Designed for easy installation and integration into existing systems.
Maintenance-Free: Be designed for maintenance-free, reducing downtime and operational costs.
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Mechanical
Working speed |
500rpm |
Operating temperature |
-40℃~ +100℃ |
Contact material |
Precious metal |
IP Grade |
IP 54 |
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Electrical
Circuit |
8 & 12 & 18&20 |
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 |
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Dimension
TYPE |
Rings |
Length |
ID |
OD |
BHT0932-8 |
8 |
28.4mm |
Φ9mm |
Φ32mm |
BHT0932-12 |
8 |
35.6mm |
Φ9mm |
Φ32mm |
BHT0932-18 |
12 |
46.4mm |
Φ9mm |
Φ32mm |
BHT0932-20 |
12 |
50mm |
Φ9mm |
Φ32mm |
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Industrial automation
In various automated production lines, CNC machine tools and other equipment, through-hole slip rings-BTH0932 ensure the power and signal transmission of rotating parts.

Robotics
Used in the joints of robots, through-hole slip rings-BTH0932 ensure the signal and energy supply of robots during flexible movement.

Aerospace
In satellites, spacecraft and other equipment, through-hole slip rings-BTH0932 achieve stable communication and power supply of rotating parts.

Medical equipment
For example, some rotatable medical testing equipment and treatment instruments, through-hole slip rings-BTH0932 are used to ensure the transmission of signals and energy.
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Q: Do through hole slip rings rotate with the shaft ?
Q: How to choose a through-hole slip ring with appropriate specifications?
Q: What factors affect the service life of through-hole slip rings?
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https://www.bt-slipring.com/