Designed with a Separate Rotor and Dedicated Brush Block
SLIP RINGS
0.50 in Bore Slip Rings
Compact slip rings designed for rotary systems that require a small footprint, reduced mass while maintaining reliable electrical continuity.
Key Specifications
Current: 5 A standard, 10 A optional
Voltage: 60 V standard, up to 1000 V optional
Rings: Solid coin silver
Brushes: Silver graphite, FAG180 (80% Ag / 20% C)
- 5 A: 2 brushes per ring
- 10 A: 4 brushes per ring
Noise: 10 mΩ (2 brushes), 5 mΩ (4 brushes)
Hi-Pot: 1000 VAC, 15 sec
Rotor: One-piece aluminum, molded dielectric
Leads: 20 AWG (5 A), 16 AWG (10 A), MIL-W-16878 Type “E”
Data: 1 Gb Ethernet capable for high-speed data transfer
Design & Construction
These slip rings use solid coin silver rings paired with silver graphite brushes to provide low electrical noise and consistent contact performance. The brush block assembly is molded as a single unit with a high-strength dielectric, helping maintain alignment and electrical isolation even as rotational speeds increase.
The rotor is machined from a one-piece aluminum sleeve, with the ring set molded directly into the assembly for stability and concentricity.
Configuration Flexibility
0.50 in Bore Slip Rings are available in multiple circuit counts and electrical configurations. Optional variations in voltage rating, current capacity, and lead styles allow the slip ring to be matched closely to system requirements without increasing overall size.
Typical Applications
0.50 in Bore Slip Rings are commonly used in systems where compact size and reliable electrical continuity are required through continuous rotation, including:
- Automation and test equipment
- Robotics and motion platforms
- Medical and laboratory devices
- Defense, surveillance, and gimbal systems
- Precision industrial machinery
| Model | Rings | Length A (in) | Length B (in) |
| 0902 | 2 | 0.75 | 0.88 |
| 0903 | 3 | 0.75 | 0.88 |
| 0904 | 4 | 0.75 | 0.88 |
| 0906 | 6 | 0.99 | 1.12 |
| 0908 | 8 | 1.23 | 1.36 |
| 9010 | 10 | 1.47 | 1.6 |
| 9012 | 12 | 1.71 | 1.84 |
| 9014 | 14 | 1.95 | 2.08 |
| 9016 | 16 | 2.19 | 2.32 |
| 9020 | 20 | 2.69 | 2.8 |
| 9024 | 24 | 3.15 | 3.28 |
Download the complete specifications, dimensions, and electrical details for 0.50″ Bore Slip Rings designed with a Separate Rotor and Dedicated Brush Block.
While this page highlights standard configurations, Fabricast routinely adapts brush blocks, ring spacing, materials, and lead options for application-specific requirements. If your project requires a variation in voltage, current, environment, or mechanical interface, custom designs are available.