The RB-90 Series rotary stage offers high speed rotation with a large 90 mm aperture.

Ordering
RB-90 Rotary Stage
Typical lead-time: 8 Weeks
Typical lead-time: MDrive Motor Option – Limited Availability
SKU: RB-90 Category: Uncategorized
$2,705.00
RS-485/422 to USB Adapter with ribbon cable for MDrive MotorRS-485/422 to USB adapter with ribbon cable for MDrive motor. $125.00 | Power Supply, 24V, 2.5AUniversal AC/DC Power Supply $52.00 |
Specifications
Resolution | 0.0036° |
Accuracy | 0.1 degree |
Max. Speed | 200 RPM (Stepper Motor) | 400 RPM (Servo Motor) |
Repeatability | 0.01 degree |
Max Load Capacity | 9.1 kg (20 lbs) |
Travel Range | 360° Continuous |
Encoder | Optical rotary encoder mounted to rear of motor, 1000 lines (4000 CPR) with Index (Optional) |
Limit Switches | None |
Origin | Inductive Home Switch Optical index mark on encoder (with encoder option) |
Gear Ratio | 4:1 |
Stage Weight | 2.4 kg (5.3 lbs) |
Material | Aluminum Alloy Construction |
Finish | Black Anodize |
Motor Options

Size 23 Stepper Motor
- NEMA 23 high torque stepper motor
- 2.8 Amp/Phase
- 0.9 Ohm/Phase
- 2.5 mH/Phase
- 1.8 degrees/step
- Compatible with the following motion controllers: NSC-A1 Series | NSC-G Series

Size 23 MDrive Intelligent Stepper Motor
The MDrive motor is a NEMA size 23 high torque 1.8° stepper motor integrated with an advanced, high resolution microstepping driver and a full featured programmable motion controller. With the MDrive motor there is no need for an external motion controller.- Integrated microstepping driver, motion controller and high torque motor
- Two +5 to +24 VDC I/O lines
- One 10 bit analog input selectable: 0 to +10 VDC, 0 to +5 VDC
- RS-422/485 Communications
- Input Voltage: +24 VDC

Size 23 Brushless DC Servo Motor
- NEMA 23 brushless DC servo motor
- 4000 Count/rev optical rotary encoder with index mark
- Continuous Torque: 0.81 Nm (116 oz-in)
- Compatible with the following motion controller: NSC-G Series
CAD Files
CAD Files – STEP File Format
RB-90-1-D, Stepper Motor, Motor Down
RB-90-1-U, Stepper Motor, Motor Up
RB-90-2-D, Stepper Motor, Encoder, Motor Down
RB-90-2-U, Stepper Motor, Encoder, Motor Up
RB-90-3-D, MDrive Motor, Motor Down
RB-90-3-U, MDrive Motor, Motor Up
RB-90-4-D, MDrive Motor, Motor Down
RB-90-4-U, MDrive Motor, Motor Up
RB-90-1-D, Stepper Motor, Motor Down
RB-90-1-U, Stepper Motor, Motor Up
RB-90-2-D, Stepper Motor, Encoder, Motor Down
RB-90-2-U, Stepper Motor, Encoder, Motor Up
RB-90-3-D, MDrive Motor, Motor Down
RB-90-3-U, MDrive Motor, Motor Up
RB-90-4-D, MDrive Motor, Motor Down
RB-90-4-U, MDrive Motor, Motor Up