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Customized DC-DC Converters Explore DC-DC ConvertersBearingless (split-type) multi-turn absolute encoder with battery-backed 16-bit multi-turn counter. Features 17/23-bit selectable single-turn resolution, RS485 2.5MHz serial communication, and push-rise (shaft-end locating) installation design. Available in R-type and B-type variants with 6mm or 8mm shaft bore options for flexible servo motor integration.
This product is mainly used for servo-driven control system. Provide feedback information and auxiliary signals required by accurate position and speed control units for the system.
| Variant | Shaft Bore | Installation Type |
|---|---|---|
| RSG35R06A | 6mm | R-type (shaft-end locating) |
| RSG35B06A | 6mm | B-type (shaft-shoulder locating) |
| RSG35B08A | 8mm | B-type (shaft-shoulder locating) |
| Parameter | Specification |
|---|---|
| Single-Turn Resolution | 131,072 (17-bit) / 8,388,608 (23-bit) |
| Multi-Turn Counter | 16-bit (65,536 turns, battery-backed retention) |
| Absolute Positioning Accuracy | < ±50 arc-seconds (depends on motor & assembly fit) |
| Repeatability Accuracy | < ±3 arc-seconds (depends on motor & assembly fit) |
| Interface Protocol | RS485 |
| Baud Rate | 2.5 MHz | Communication frequency ≤ 16K| Communication frequency ≤ 16K |
| Allowable Shaft Deviation | Dip Angle: 0.1° / Axial Endplay: <0.1mm / Radial Runout: <0.01mm |
| Max Operating Speed | 6,000 rpm |
| Moment of Inertia | 0.21 kg·mm² |
| Rotor Angular Acceleration | Powered: ≤80,000 rad/s² / Battery: ≤4,000 rad/s² |
| Current Consumption | < 100 mA |
| Battery Voltage | 3.6V DC (Warning: 3.1V / Fault: 2.5V) |
| Supply Voltage | Single 5V DC |
| Operating Temperature | -20 °C to +105 °C |
| Relative Humidity | ≤90% (40°C/21d, EN 60068-2-78, non-condensing) |
| Ingress Protection | IP40 |
| Mechanical Shock | 980 m/s² (100G), 11ms, 3 times per XYZ (18 total) |
| Vibration | 10-55Hz 1.5mm / 55-2000Hz 98 m/s² (XYZ, 2h/axis, 6h total) |
| Rise/Fall Time | Around 100ns |
| Insulation Resistance | 50 MΩ |
Example Part Number
RSG35 R 06 A 23 P R 5V
* Shaft bore sizes (06/08) and protocols marked with asterisk can be customized. Contact EPOCH sales for custom ordering configurations.
| Pin | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Signal | 5V | GND | 485+ | 485- | Battery + | Battery GND | NC | PE |
| Color | Red | Black | Blue | Yellow | Brown | White | — | Shielded Mesh |
The following drawings show mechanical dimensions for RSG35 Series variants. All dimensions are in mm. Verify critical dimensions with EPOCH technical support before finalizing motor housing design.
RSG35R06A Mechanical Dimension Drawing
RSG35B06A Mechanical Dimension Drawing
Shaft End Locating - Motor Face Dimension Drawing
Shaft Shoulder Locating - Motor Face Dimension Drawing
RSG35B08A Mechanical Dimension Drawing
The EPOCH RSG35 Series bearingless absolute encoders are designed as alternatives for a range of push-rise and shaft-end locating absolute encoder applications. Available in R-type (shaft-end locating) and B-type (shaft-shoulder locating) variants with 6mm or 8mm shaft bores. Engineers should verify shaft bore dimensions, locating method, and protocol requirements before specifying.
EPOCH is an independent encoder manufacturer. Verify all mechanical and electrical parameters before integration.
Q: What is the difference between RSG35R and RSG35B?
RSG35R uses a shaft-end locating (push-rise) installation method, while RSG35B uses a shaft-shoulder locating method. Both are available in 6mm or 8mm shaft bore options.
Q: What resolution options does the RSG35 support?
The RSG35 Series supports selectable 17-bit (131,072 steps) or 23-bit (8,388,608 steps) single-turn resolution with a 16-bit multi-turn counter.
Q: What is the positioning accuracy of the RSG35?
The RSG35 achieves < ±50 arc-seconds absolute positioning accuracy with < ±3 arc-seconds repeatability, depending on motor and mechanical assembly fit.
Need custom resolution, specific installation type, or bulk pricing? Contact our sales team.
| Item | Description | QTY/Box | Boxes /Carton | G.W | N.W | QTY /Carton | Package Size |
| RSG35 | RSG35 Series Bearingless Absolute Magnetic Encoder | 10pcs | 10boxes | /kgs | /kgs | 100pcs | 310*130*45mm |
Discover all the technical specifications by downloading the datasheet today.
| Part Number | Interface |
Dimensions
(mm) |
Resolution Ranges | Resolution Counter |
Communication Frequency |
Working Temperature |
Communication Frequency |
Operation Speeds |
Protection Structure |
Footprint 3D | Datasheet | Sample |
| RZ35A08 | RS485 | Φ35mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 |  |
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| RZ Series | RS485 | Φ48mm | 17~23 Bits | Single/Multi-Turn | Differential output | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| UZ Series | RS485 | Φ48mm | 1000-5000CPR | Single/Multi-Turn | Differential output | -20°C-+105°C | 500khz | / | IP40 | |
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| RS972 | / | / | / | / | / | -40°C to +85°C | / | / | / | |
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| RS970 | / | / | / | / | / | -40°C to +85°C | / | / | / | |
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| RK Series | / | / | / | / | / | -20°C to +85°C | / | / | / | |
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| RK Series | / | / | / | / | / | -20°C to +85°C | / | / | / | |
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| RK Series | / | / | / | / | / | -20°C to +85°C | / | / | / | |
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| RF28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | |
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| RT28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | |
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| RF20 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | |
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| RR28 | / | / | / | Single/Multi-Turn | / | -40 °C ~+85 °C | / | / | / | |
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| RS5 | / | / | / | Single/Multi-Turn | / | / | / | / | / | |
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| RSG35 | RS485 | / | 17-23 Bits | Single/Multi-Turn | ≤16K | -20 ℃ ~+105 ℃ | 16K | 6000rpm | IP40 | |
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| RSU3506 | RS485 | / | 17-24 Bits | Single/Multi-Turn | ≤16K | -20 ℃ ~+105 ℃ | 16K | 6000rpm | IP40 | |
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| MS Series | / | / | 17 Bits | Single/Multi-Turn | ≤16K | -10℃～105℃ | 16K | ≤6000rpm | / | |
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| RZ1337A | RS485 | / | 25 Bits | Single/Multi-Turn | ≤16K | -20°C-+105°C | 16K | 12000rpm | IP40 | |
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| RZ7810 | RS485 | / | 23~25 Bits | Single/Multi-Turn | ≤16K | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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| RS Series | RS485 | / | 17~23 Bits | Single/Multi-Turn | ≤16K | -20°C-+105°C | 16K | 6000rpm | IP40 | |
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Essential for Precision and Reliability in Medical Equipment
Improve Automation and Efficiency in Various Robotic Applications
Improve the Efficiency and Reliability of Automation Systems
Accurate Feedback on Position and Speed
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