Product Overview
The VRB High Precision Planetary Gearbox has been meticulously designed to offer remarkable positional accuracy, low noise operation, and enduring mechanical stability. With its advanced helical gear architecture and robust structural integrity, the VRB series ensures smooth power transmission, high torque capacity, and dependable performance in even the most challenging industrial environments.
Its electroless nickel-plated housing and black-anodized mounting interfaces provide excellent protection against corrosion, humidity, and harsh environments. Combined with ultra-low backlash—often below 3 arcmin—the VRB gearbox ensures precise positioning for CNC equipment, robotics, packaging machinery, and laser processing systems. This level of precision is further reinforced by class-leading torsional rigidity (up to 225 Nm/arcmin for VRB220), making it a cornerstone for high-dynamic motion systems like robotic welding or 3D printing.
With an efficiency rating of up to 97%, the VRB High Precision Planetary Gearbox is engineered to reduce energy consumption while maintaining consistent operational performance. Its high-viscosity synthetic grease eliminates lubrication leakage and allows maintenance-free operation throughout the gearbox’s service life. The VRB series is fully compatible with most servo motor brands, offering flexible mounting options and multiple reduction ratios to fit various industrial automation needs. From compact VRB042 (0.5kg, 20Nm) to heavy-duty VRB220 (66kg, 50000N radial load), the series scales to match both small-scale and large-scale industrial demands.
Its structural robustness, high radial and axial load capacity, and stable operation during high-speed cycles make it an ideal choice for mission-critical automation tasks. Whether used in precise micro-movement control or heavy-duty continuous-duty systems, the VRB High Precision Planetary Gearbox delivers reliable speed reduction, efficiency, and long-term durability—attributes highly valued in modern manufacturing. Users across aerospace, automotive, and electronics industries have validated its ability to maintain performance over 20,000 hours of continuous operation.
Key Features
Technical Information
| Specs | Unit | Stage | Ratio | VRB042 | VRB060 | VRB090 | VRB115 | VRB142 | VRB180 | VRB220 |
|---|---|---|---|---|---|---|---|---|---|---|
| Rated Output Torque / T2N | Nm | 1 | 3 | 20 | 45 | 130 | 230 | 450 | 900 | 1500 |
| Rated Output Torque / T2N | Nm | 1 | 4 | 19 | 50 | 140 | 290 | 540 | 1050 | 1700 |
| Rated Output Torque / T2N | Nm | 1 | 5 | 22 | 60 | 160 | 330 | 650 | 1200 | 2000 |
| Rated Output Torque / T2N | Nm | 1 | 6 | 19 | 55 | 150 | 310 | 600 | 1100 | 1900 |
| Rated Output Torque / T2N | Nm | 1 | 7 | 20 | 50 | 140 | 300 | 550 | 1100 | 1800 |
| Rated Output Torque / T2N | Nm | 1 | 8 | 17 | 45 | 120 | 260 | 500 | 1000 | 1600 |
| Rated Output Torque / T2N | Nm | 1 | 9 | 14 | 40 | 100 | 230 | 450 | 900 | 1500 |
| Rated Output Torque / T2N | Nm | 1 | 10 | 14 | 40 | 100 | 208 | 342 | 588 | 1140 |
| Rated Output Torque / T2N | Nm | 2 | 15 | 19 | 45 | 130 | 290 | 450 | 900 | 1550 |
| Rated Output Torque / T2N | Nm | 2 | 20 | 20 | 50 | 140 | 230 | 540 | 1050 | 1700 |
| Rated Output Torque / T2N | Nm | 2 | 25 | 22 | 60 | 160 | 330 | 650 | 1200 | 2000 |
| Rated Output Torque / T2N | Nm | 2 | 30 | 20 | 55 | 150 | 310 | 600 | 1100 | 1900 |
| Rated Output Torque / T2N | Nm | 2 | 35 | 19 | 60 | 160 | 330 | 550 | 1100 | 1800 |
| Rated Output Torque / T2N | Nm | 2 | 40 | 17 | 45 | 120 | 260 | 500 | 1000 | 1600 |
| Rated Output Torque / T2N | Nm | 2 | 45 | 14 | 40 | 100 | 230 | 450 | 900 | 1500 |
| Rated Output Torque / T2N | Nm | 2 | 50 | 22 | 60 | 160 | 330 | 650 | 1200 | 2000 |
| Rated Output Torque / T2N | Nm | 2 | 60 | 20 | 55 | 150 | 310 | 600 | 1100 | 1900 |
| Rated Output Torque / T2N | Nm | 2 | 70 | 19 | 50 | 140 | 300 | 550 | 1100 | 1800 |
| Rated Output Torque / T2N | Nm | 2 | 80 | 17 | 45 | 120 | 260 | 500 | 1000 | 1600 |
| Rated Output Torque / T2N | Nm | 2 | 90 | 14 | 40 | 100 | 230 | 450 | 900 | 1500 |
| Rated Output Torque / T2N | Nm | 2 | 100 | 14 | 40 | 100 | 208 | 342 | 588 | 1140 |
| Max Output Torque / T2max¹ | Nm | 1,2 | 3-100 | – | 3Times of Nominal Output Torque | – | – | – | – | |
| Rated Input Speed / n1n | rpm | 1,2 | 3-100 | 5000 | 5000 | 4000 | 4000 | 3000 | 3000 | 2000 |
| Max Input Speed / n1m | rpm | 1,2 | 3-100 | 10000 | 10000 | 8000 | 8000 | 6000 | 6000 | 4000 |
| Micro Backlash P0 | arcmin | 1 | 3-10 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 | ≤1 |
| Micro Backlash P0 | arcmin | 2 | 12-100 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 |
| Precision Backlash P1 | arcmin | 1 | 3-10 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 | ≤3 |
| Precision Backlash P1 | arcmin | 2 | 12-100 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 |
| Precision Backlash P2 | arcmin | 1 | 3-10 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 | ≤5 |
| Precision Backlash P2 | arcmin | 2 | 12-100 | ≤7 | ≤7 | ≤7 | ≤7 | ≤7 | ≤7 | ≤7 |
| Torsional Rigidity | Nm/arcmin | 1,2 | 3-100 | 3 | 7 | 14 | 25 | 50 | 145 | 225 |
| Max Radial Force / Frmax² | N | 1,2 | 3-100 | 780 | 1530 | 3250 | 6700 | 9400 | 14500 | 50000 |
| Max Axial Force / Famax² | N | 1,2 | 3-100 | 390 | 765 | 1825 | 3350 | 4700 | 7250 | 25000 |
| Service Life | hr | 1,2 | 3-100 | – | 20000h | – | – | – | – | – |
| Efficiency / η | % | 1 | 3-10 | – | ≥97% | – | – | – | – | – |
| Efficiency / η | % | 2 | 15-100 | – | ≥94% | – | – | – | – | – |
| Weight | kg | 1 | 3-10 | 0.5 | 1.3 | 3.3 | 7.8 | 15 | 28 | 52 |
| Weight | kg | 2 | 15-100 | 0.8 | 1.48 | 3.9 | 9.8 | 18.9 | 33 | 66 |
| Operating Temperature | ℃ | 1,2 | 3-100 | – | (-15℃~+90℃) | – | – | – | – | – |
| Lubrication | – | 1,2 | 3-100 | – | Synthetic Grease | – | – | – | – | – |
| Protection Class | – | 1,2 | 3-100 | – | IP65 | – | – | – | – | – |
| Mounting Position | – | 1,2 | 3-100 | – | Any Direction | – | – | – | – | – |
| Noise Level (n1=3000rpm, No load) | dB(A) | 1,2 | 3-100 | ≤56 | ≤58 | ≤60 | ≤63 | ≤65 | ≤67 | ≤70 |
| Rotary Inertia / J1 | kg·cm² | 1 | 3 | 0.03 | 0.16 | 0.61 | 3.25 | 9.21 | 28.98 | 69.61 |
| Rotary Inertia / J1 | kg·cm² | 1 | 4 | 0.03 | 0.14 | 0.48 | 2.74 | 7.54 | 23.67 | 54.37 |
| Rotary Inertia / J1 | kg·cm² | 1 | 5 | 0.03 | 0.13 | 0.47 | 2.71 | 7.42 | 23.29 | 53.27 |
| Rotary Inertia / J1 | kg·cm² | 1 | 6 | 0.03 | 0.13 | 0.45 | 2.65 | 7.25 | 22.75 | 51.72 |
| Rotary Inertia / J1 | kg·cm² | 1 | 7 | 0.03 | 0.13 | 0.45 | 2.62 | 7.14 | 22.48 | 50.97 |
| Rotary Inertia / J1 | kg·cm² | 1 | 8 | 0.03 | 0.13 | 0.44 | 2.58 | 7.07 | 22.59 | 50.84 |
| Rotary Inertia / J1 | kg·cm² | 1 | 9 | 0.03 | 0.13 | 0.44 | 2.57 | 7.04 | 22.53 | 50.63 |
| Rotary Inertia / J1 | kg·cm² | 1 | 10 | 0.03 | 0.13 | 0.44 | 2.57 | 7.03 | 22.51 | 50.56 |
| Rotary Inertia / J1 | kg·cm² | 2 | 12-40 | 0.03 | 0.03 | 0.13 | 0.47 | 2.71 | 7.42 | 23.29 |
| Rotary Inertia / J1 | kg·cm² | 2 | 50-100 | 0.03 | 0.03 | 0.13 | 0.44 | 2.57 | 7.03 | 22.51 |
3D Models (STEP / IGES)
Full Specification Sheet (PDF)
Installation & Motor Mounting Guide
Maintenance Guidelines
Applications
- CNC Machinery: The VRB High Precision Planetary Gearbox provides accuracy, stability, and responsive servo control ideal for CNC routers, machining centers, engraving machines, and precision cutting equipment. Its low backlash ensures micro-movement precision and smoother machining results.
- Packaging Machinery: High speed, high torque, and excellent repeatability make it suitable for automated packaging lines, filling machines, labeling systems, and high-speed pick-and-place operations.
- Laser Processing Equipment: Helical gears deliver stable, low-vibration performance, improving laser cutting accuracy and reducing motion-induced distortion—important for fine cutting, engraving, and marking applications.
- Mining and Heavy-Load Equipment: With strong load capacity, high torque density, and durability, the VRB High Precision Planetary Gearbox perform reliably in environments requiring resistance to heat, moisture, dust, and continuous heavy-duty operation. They’re proven to withstand 24/7 operation in coal mine conveyor drives, maintaining torque output within 2% tolerance over 5 years. For heavy-duty gearbox engineering, refer to Mining Engineering Magazine.
