Description
Ultra-Compact Power Transmission for Space-Restricted Systems
Engineered specifically for next-generation miniature automation systems, the SHENLI DLF28 Low-Backlash Planetary Gearbox delivers an outstanding power-to-weight ratio in an ultra-compact 28mm frame size.
When installation space is severely limited, the DLF28 offers an uncompromised power transmission solution. Featuring a high-density planetary gear layout, it generates high torque output without increasing machinery footprint. It seamlessly simplifies system integration, reduces total equipment dimensions, and fully satisfies the demanding requirements of lightweight micro-automation modules and AGV drive units.
High Positioning Accuracy & Low Backlash Control
For precision motion control applications, gear mesh stability directly dictates positioning repeatability. The DLF28 planetary gearbox adopts advanced multi-tooth simultaneous engagement technology, distributing mechanical load evenly across gear surfaces.
This specialized design significantly dampens mechanical impact and operational vibration. As a premium low-backlash planetary gearbox tailored for micro-robotics and automated optical drives, the DLF28 guarantees exceptional backlash control, maintaining rock-solid movement consistency and accurate positioning even under continuous stop-and-go cycles. Multiple gear ratios are available to pair perfectly with NEMA 11 and micro stepper motors for maximum transmission efficiency.
Industrial-Grade Alloy Construction & Extended Lifecycle
At SHENLI, long-term durability and product consistency are built into every gear. All gears inside the DLF28 are precision-machined from high-strength alloy steel and treated with advanced thermal processes to maximize fatigue resistance and torque capacity.
Key highlights of the DLF28 quality standard include:
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Low Friction & High Efficiency: Premium micro bearings drastically reduce internal friction, elevating energy efficiency.
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Low Maintenance: Optimized internal lubrication structures extend maintenance intervals and prolong service life.
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100% Quality Assurance: Every DLF28 unit completes stringent load performance testing and lifecycle validation before leaving our facility, ensuring gear meshing accuracy meets strict industrial benchmarks.
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Flexible OEM/ODM Customization: We provide tailored shaft dimensions, custom ratios, mounting flanges, and motor adapter plates to fit your unique equipment designs.
Typical Applications
Miniature robots.
Laboratory automation equipment.
Medical testing instruments.
Precision sensing systems.
Smart camera platforms.
Electronics assembly equipment.
Compact conveyor devices.
Semiconductor auxiliary equipment.
General Specifications
- Product Name: DLF28 Planetary Gearbox
- Product Type: Miniature Precision Planetary Gearbox
- Mounting Size: 28 mm flange configuration
- Transmission Structure: Full needle-bearing supported planetary gear mechanism
- Output Type: Solid round shaft output
- Housing Material: High-strength anodized aluminum alloy
- Installation Orientation: Flexible multi-angle mounting
Dimensional Specifications
- Flange Size: 28 × 28 mm
- Gearbox Diameter: 28 mm
- Gearbox Length: 33 mm / 39 mm / 46 mm
- Input Shaft Diameter: 5 mm
- Output Shaft Diameter: 8 mm
- Output Shaft Length: 18 mm
- Pilot Diameter: Ø22 mm
- Mounting Holes: 4-M3
Transmission Performance
- Gear Ratios: 3:1, 4:1, 5:1, 10:1, 16:1, 20:1, 25:1, 36:1, 50:1, 100:1
- Single-Stage Efficiency: ≥96%
- Two-Stage Efficiency: ≥92%
- Rated Output Torque: 1.5–12 N·m
- Peak Torque Capacity: 18 N·m
- Backlash: ≤12 arcmin
- Maximum Input Speed: 8000 rpm
- Recommended Operating Speed: 1000–5000 rpm
- Radial Load Capacity: 350 N
- Axial Load Capacity: 220 N
Materials and Manufacturing
- Gear Material: 20CrMnTi alloy steel
- Heat Treatment: Vacuum carburizing and hardening
- Gear Surface Hardness: HRC58–62
- Gear Accuracy Grade: DIN 6
- Lubrication System: Fully sealed, long-life grease lubrication
- Bearing Type: Precision deep-groove ball bearings
Environmental Specifications
- Operating Temperature: -20°C to +80°C
- Storage Temperature: -40°C to +100°C
- Protection Rating: IP54
- Service Life: ≥20,000 hours
- Maintenance Requirement: Maintenance-free design
Compatible Motors
- Nema11 stepper motors
- Nema14 stepper motors
- Nema17 stepper motors
- Miniature servo motors
- Compact automation drive systems
