

TBRU Series Closed-Loop Motorized Rotation Stages, 360°, Circular Encoder
TBRU SeriesDesign Tools
Closed-loop worm-gear rotation stages with a built-in circular encoder for demanding angular adjustment.
TBRU stages are closed-loop motorized rotation stages for applications with strict angle-adjustment requirements. A built-in circular grating encoder provides position feedback, while a tin bronze worm gear, a high-frequency-quenched steel worm and a precision crossed-roller ring carry the motion. An adjustment mechanism on the worm gear compensates mechanical play for long-term accuracy, and the stages can also be mounted vertically or inverted.
Key Features
- Built-in circular grating encoder for closed-loop angle control
- 180:1 worm gear drive with tin bronze gear and high-frequency-quenched alloy steel worm
- Worm gear adjustment mechanism to compensate mechanical errors and hold accuracy over time
- Precision crossed-roller ring; mountable horizontally, vertically or inverted
- Repeatability ≤ ±0.003° and reverse clearance ≤ 0.003°
- Two-phase 57 stepping motor; built-in origin sensor, external limit sensors optional
Typical Applications
- Precision angular adjustment
- Optical alignment and angle-dependent measurements
- Rotary positioning in automated inspection
- Sample orientation in research setups
Model Overview
| Model | Table Dia. (mm) | Max Load Horizontal (kg) | Max Load Vertical (kg) | Max Load Inverted (kg) |
|---|---|---|---|---|
| TBRU100 | Φ102 | 20 | 5 | 5 |
| TBRU200 | Φ196 | 40 | 10 | 10 |
Related Products
- TBR / TBRF Series — Motorized rotation stage
- SIN Series — Sinusoidal Motorized Rotation Stages
- SKR Series — Stainless Steel Manual Rotation Stages
Browse all: Motorized Rotary Translation Stage · Rotation / Angular Stages
Models: TBRU100, TBRU200 · Contact WaveQuanta for a quote, configuration advice and lead time.
| Rotation Range | 360° |
| Table Diameter | Φ102 mm (TBRU100); Φ196 mm (TBRU200) |
| Drive | Worm gear and worm, 180:1 |
| Worm Gear / Worm | Wear-resistant tin bronze gear; high-frequency-quenched steel worm |
| Bearing | Crossed-roller ring |
| Body | Black anodized aluminum alloy |
| Position Feedback | Built-in circular grating encoder |
| Closed-Loop Resolution | 0.0000762712° per pulse |
| Open-Loop Resolution (8 Microsteps) | 0.00125° |
| Max Speed | 20°/s |
| Repeatability | ≤ ±0.003° |
| Reverse Clearance | ≤ 0.003° |
| Backlash (µm, as Listed) | ≤ 12 µm |
| Static Parallelism | ≤ 0.08 mm |
| Axial Runout | ≤ 40 µm |
| Radial Runout | ≤ 30 µm |
| Motor | Two-phase 57 stepping motor, 1.8° step angle |
| Motor Current / Torque | 2.4 A / 1 N·m |
| Stepping Driver | Optional |
| Connector | DB9 (pin) |
| Connection Cable | High-flex cable, 0.2 m |
| Limit Sensors | None built in; external sensors optional |
| Origin Sensor | 1 × built-in |
| Sensor Supply / Consumption | DC 5–24 V ±10%; ≤ 15 mA |
| Sensor Output | NPN open collector, DC 5–24 V, ≤ 50 mA; ON when sensor is blocked |
| Max Load | Horizontal 20 / 40 kg; vertical 5 / 10 kg; inverted 5 / 10 kg (TBRU100 / TBRU200) |
Product Family: Motorized Rotary Translation Stage (6 variants)
| Product | SKU | Size | Clear Aperture | Operating Wavelength | |
|---|---|---|---|---|---|
| SIN Series Sinusoidal Motorized Rotation Stages, ±6° to ±9° Range |
SIN Series
| — | — | — | Contact |
| TBRU Series Closed-Loop Motorized Rotation Stages, 360°, Circular Encoder Current |
TBRU Series
| — | — | — | |
| TBR and TBRF Series Motorized Rotation Stages, 360°, Worm Gear Drive |
TBR / TBRF Series
| — | — | — | Contact |
| Motorized Rotary Translation Stage EM-RP60 |
EM-RP60
| — | — | — | View |
| Motorized Rotary Translation Stage EM-RP100 |
EM-RP100
| — | — | — | View |
| Motorized Rotary Translation Stage EM-RP40 |
EM-RP40
| — | — | — | View |






