CAN bus slip ring DHK012-12

EthernetRS-485through-bore

Overview
The DHK012-12 through-bore slip ring provides a true Ø12.7 mm (0.5") central bore for shaft, pneumatic, hydraulic or cable pass-through. With multi-point precious-metal fiber-brush contacts and a modular ring stack, it enables low-noise mixed power and signal transmission in space-constrained rotary systems requiring a hollow shaft.

Key Specifications
Inner Diameter (Bore): 12.7 mm (0.5")
Circuits: 6 / 12 / 18 / 24 (default 12)
Current per Ring: 2A (signal) / 5A / 10A (optional)
Rated Voltage: 0–380 VAC/VDC (440V / 600V optional)
Max Speed: 300 rpm (up to 600 rpm custom)
Contact Material: Gold-gold / gold alloy, multi-point fiber brush
Dynamic Resistance: < 0.01 Ω
Electrical Noise: ≤ 5 mΩ
Insulation Resistance: ≥ 500 MΩ @ 500 VDC
Dielectric Strength: 1000 VAC @ 50 Hz, 60 s
Housing Material: Anodized aluminum alloy
Lead Wire: Teflon AWG16 / AWG22 / AWG26, 300 mm default
Protection Grade: IP51 (IP54 / IP65 optional)
Working Temperature: -40 °C ~ +80 °C
Mounting Type: Shaft clamp or flange, anti-rotation tab on stator
Life Expectancy: 20+ million revolutions, maintenance-free

Design Features

• True hollow center with bore tolerance ±0.05 mm, fits standard 1/2" shaft
• Mixed power and signal capability (RS485, encoder, CAN, Ethernet optional)
• Low-torque bearing for smooth servo-driven joints
• Maintenance-free design with 20+ million rev service life
• Rotor/stator lead exit customizable (axial or radial)

Typical Applications

• Robotic arm wrists and joint modules
• Small rotary indexing tables and turntables
• Medical imaging gantries and surgical light heads
• Packaging, labeling and capping machines
• CCTV pan-tilt units, antenna pedestals, display turntables

Technical Specifications

• Model: DHK012-12
• Inner Diameter: 12.7 mm (0.5")
• Available Circuits: 6, 12, 18, 24 (default 12)
• Current Options per Ring: 2A (signal), 5A, 10A
• Rated Voltage: up to 380 VAC/VDC (options up to 600V)
• Maximum Speed: 300 rpm (custom up to 600 rpm)
• Contact Material: gold / gold alloy, multi-point fiber brush
• Dynamic Resistance: < 0.01 Ω
• Electrical Noise: ≤ 5 mΩ
• Insulation Resistance: ≥ 500 MΩ @ 500 VDC
• Dielectric Strength: 1000 VAC @ 50 Hz for 60 s
• Housing: Anodized aluminum alloy
• Lead Wire: Teflon AWG16 / AWG22 / AWG26, standard 300 mm
• Protection Grade: IP51 (options IP54 / IP65)
• Operating Temperature: -40 °C to +80 °C
• Mounting: Shaft clamp or flange; stator anti-rotation tab
• Service Life: 20+ million revolutions, maintenance-free