Description
Smooth Helical Gear Transmission
The helical gear arrangement creates a larger tooth contact area than conventional spur gear designs. This structure distributes transmission loads more evenly across the gear teeth.
As a result, the helical gear gearbox provides smoother power delivery and reduced mechanical impact.
The design also helps minimize vibration and noise. This makes the AF90 suitable for CNC machines and other precision automation equipment.
High Torque and Low-Noise Performance
The AF90 supports high torque transmission while maintaining stable operation at different speeds.
Its optimized gear engagement helps improve load capacity and transmission efficiency. The gearbox also reduces mechanical shock during operation.
These characteristics make the AF90 a practical high-torque gearbox for demanding motion control systems.
Typical applications include:
- CNC machinery
- Industrial automation
- Motion control equipment
- Robotic systems
- Precision machinery
- Automated production lines
Low Backlash for Precision Motion Control
Backlash directly affects positioning accuracy in precision transmission systems. SHENLI controls critical gear tolerances to maintain low backlash performance.
Precision grinding improves gear surface quality and dimensional consistency. High-precision bearings further reduce radial and axial deviations.
The result is a low-backlash gearbox designed for applications that require repeatable positioning and controlled motion.
Multiple Gear Ratio Options
The AF90 series supports multiple gear ratios for different speed and torque requirements.
Customers can select suitable ratios according to their equipment configuration. The gearbox can also work with stepper motors and servo motors.
This flexibility helps engineers achieve better motor-to-load matching.
The helical gear gearbox can therefore support different transmission requirements without changing the overall system concept.
Precision Gear Manufacturing
SHENLI manufactures the gearbox using high-strength alloy steel gears. Carburizing and heat treatment improve surface hardness and wear resistance.
Critical gear surfaces receive precision grinding treatment. This process helps maintain accurate tooth geometry and stable transmission performance.
High-quality bearings support smooth operation. An optimized lubrication system also helps reduce friction and component wear.
Typical Applications
Industrial robots.
Automated assembly equipment.
Packaging machinery.
Material handling systems.
Laser processing machines.
CNC machine tools.
New energy equipment.
Smart manufacturing production lines.
General Specifications
- Product Name: AF90 Helical Gearbox
- Product Type: Precision Helical Planetary Gearbox
- Mounting Size: 90 mm flange configuration
- Housing Structure: Integrated high-rigidity aluminum alloy housing
- Transmission Type: Progressive helical gear meshing
- Output Style: Solid output shaft
- Mounting Orientation: Flexible multi-position installation
Dimensional Data
- Flange Size: 90 × 90 mm
- Input Shaft Diameter: 14 mm
- Output Shaft Diameter: 19 mm
- Output Shaft Length: 40 mm
- Pilot Diameter: Ø70 mm
- Mounting Pattern: 4-hole standard mounting
- Gearbox Length: 98 mm / 118 mm / 138 mm depending on stages
Performance Specifications
- Gear Ratios: 3:1, 5:1, 7:1, 10:1, 15:1, 20:1, 25:1, 35:1, 50:1, 70:1, 100:1
- Rated Output Torque: 35–220 N·m
- Peak Output Torque: Up to 450 N·m
- Full-Load Efficiency: ≥96%
- Backlash: ≤8 arcmin
- Maximum Input Speed: 6000 rpm
- Recommended Input Speed: 3000 rpm
- Noise Level: ≤58 dB
- Radial Load Capacity: 2600 N
- Axial Load Capacity: 1800 N
Materials and Manufacturing
- Gear Material: 20CrMnTi alloy steel
- Gear Treatment: Carburized, hardened, and precision-ground
- Tooth Surface Hardness: HRC58–62
- Lubrication: Long-life synthetic grease
- Bearing Type: High-precision angular contact bearings
Environmental Specifications
- Operating Temperature: -15°C to +90°C
- Protection Rating: IP65
- Service Life: ≥20,000 hours
- Maintenance Requirement: Maintenance-free design
Compatible Motors
- 90-series stepper motors
- Nema34 stepper motors
- 750W–2kW servo motors
- Industrial automation drive systems
Helical Gearbox performance information:
| Model | Unit | AF090 | Ratio | Stage |
| Rated output torque | N.m | 50 | 3 | 1 |
| 75 | 4 | |||
| 75 | 5 | |||
| 75 | 7 | |||
| 50 | 10 | |||
| 90 | 15 | 2 | ||
| 96 | 16 | |||
| 96 | 20 | |||
| 96 | 25 | |||
| 96 | 28 | |||
| 87 | 30 | |||
| 96 | 35 | |||
| 96 | 40 | |||
| 96 | 50 | |||
| 87 | 70 | |||
| 50 | 100 | |||
| Emergency stop torque | N.m | 3 times rated output torque | ||
| Nominal input speed | rmp | 3000 | ||
| Maximum input speed | rmp | 6000 | ||
| Maximum radial force | N | 2400 | ||
| Maximum axial force | N | 2200 | ||
| Efficiency | % | Single[97%] | Double[95%] | |
| Average lifetime | h | 20000 | ||
| Weight | kg | 3.7 | 1 | |
| 4.2 | 2 | |||
| Model | Unit | AF090 | Stage |
| Moment of Inertia | kgcm2 | 0.61 | 1 |
| 0.48 | |||
| 0.47 | |||
| 0.47 | |||
| 0.44 | |||
| 0.72 | 2 | ||
| 0.5 | |||
| 0.44 | |||
| 0.44 | |||
| 0.39 | |||
| 0.39 | |||
| 0.39 | |||
| 0.39 | |||
| 0.39 | |||
| 0.39 | |||
| 0.39 | |||
| Noise | dB | 62 | |
| Backlash | arcmin | ≤3 | Precise[1] |
| ≤5 | Standard[1] | ||
| ≤5 | Precise[2] | ||
| ≤7 | Standard[2] | ||
| Torsional rigidity | N.m/arc min | 14 | |
| Lubricating | Synthetic grease lubrication | ||
| Levels of protection | IP65 |
