Planetary Slewing Drive Gearbox for Tow Truck Cranes
A planetary slewing drive gearbox is a specialized mechanical component engineered for precise rotational control in heavy-duty applications, such as tow truck cranes. It integrates a planetary gear system, which consists of a central sun gear, multiple planet gears orbiting around it, and an outer ring gear, often combined with a worm drive or hydraulic mechanisms to achieve high torque output and compact design. This setup enables efficient power transmission with significant speed reduction, allowing the crane’s boom or wrecker arm to rotate smoothly under heavy loads, enhancing operational stability and safety.
A planetary slewing drive gearbox is a specialized mechanical component engineered for precise rotational control in heavy-duty applications, such as tow truck cranes. It integrates a planetary gear system, which consists of a central sun gear, multiple planet gears orbiting around it, and an outer ring gear, often combined with a worm drive or hydraulic mechanisms to achieve high torque output and compact design. This setup enables efficient power transmission with significant speed reduction, allowing the crane's boom or wrecker arm to rotate smoothly under heavy loads, enhancing operational stability and safety. In tow truck cranes, it facilitates 360-degree slewing movements for lifting and towing vehicles, reducing wear on components while providing reliable performance in demanding environments like roadside recovery operations.

Planetary Slewing Drive Dimensions
RE 240
Support: DBS

Support: Tecc

Splined Shaft:

| Supporto Support | ØD1 | ØD2 | S | Ls | L | L1 | L2 | t | ØDt | Lt |
| [ mm ] | ||||||||||
| DBS | 50 h7 | 60 h6 | DIN5482 B58x53 | 37 | 68.3 | 50 | 8 | M10 (n° 3) | 32 | 21 |
| Tecc | 50 h7 | 60 h6 | DIN5482 B58x53 | 37 | 68.3 | 50 | 8 | M10 (n° 3) | 32 | 21 |
Pinions:

| Support | m | z | x | ØDE | BU | a | S | t | Tmax | |
| [mm] | Static [Nm] | Dynamic [Nm] | ||||||||
| DBS | 6 | 15 | 0.5 | 108 | 88 | 2 | - | - | 6000 | 5400 |
| 8 | 9 | 0.5 | 95.2 | 96 | 0.5 | - | - | 5000 | 4500 | |
| 10 | 11 | 0.5 | 137 | 68 | 2 | - | - | 6300 | 5670 | |
| 14 | 13 | 0.5 | 224 | 70 | 2 | DIN5482 B58x53 | M10 (n° 3) | 6300 | 5670 | |
| Tecc | 6 | 18 | 0 | 120 | 70 | 13.5 | DIN5482 B58x53 | M10 (n° 3) | 6000 | 5400 |
| 8 | 10 | 0.5 | 104 | 80 | 13.5 | - | - | 5000 | 4500 | |
| 8 | 14 | 0.5 | 136 | 80 | 23.5 | DIN5482 B58x53 | M10 (n° 3) | 6300 | 5670 | |
| 10 | 13 | 0 | 150 | 80 | 3.5 | DIN5482 B58x53 | M10 (n° 3) | 6300 | 5670 | |
| 14 | 13 | 0,5 | 224 | 70 | 2 | DIN5482 B58x53 | M10 (n° 3) | 6500 | 5670 | |
RE 310/510
Support: DBS

Support: Tecc

Support: T6

Support: T8

Support: T18

Support: NR

Support: NR3

Shaft:

| Support | ØD1 | ØD2 | S | Ls | L | L1 | L2 | t | ØDt | Lt |
| [ mm ] | ||||||||||
| DBS | 50 h7 | 60 h6 | DIN5482 B58x53 | 46 | 78 | 60 | 8 | M10 (n° 3) | 32 | 20 |
| Tecc | 50 h7 | 60 h6 | DIN5482 B58x53 | 46 | 78 | 60 | 8 | M10 (n° 3) | 32 | 20 |
| T6 | 50 h7 | 60 h6 | DIN5482 B58x53 | 46 | 78 | 60 | 8 | M10 (n° 3) | 32 | 20 |
| T8 | 50 h7 | 60 h6 | DIN5482 B58x53 | 46 | 78 | 60 | 8 | M10 (n° 3) | 32 | 20 |
| T18 | 62 F7 | 72 F7 | DIN5482 B70x64 | 51 | 90 | 70 | 10 | M10 (n° 3) | 40 | 22 |
| NR | 50 h7 | 60 h6 | DIN5482 B58x53 | 37 | 68.5 | 50 | 8 | M10 (n° 3) | 32 | 20 |
| NR3 | 50 h7 | 60 h6 | DIN5482 B58x53 | 37 | 68.5 | 50 | 8 | M10 (n° 3) | 32 | 20 |
Pinions:

| Support | m | z | x | ØDE | BU | a | S | t | Tmax | |
| [mm] | Static [Nm] | Dynamic [Nm] | ||||||||
| DBS | 8 | 11 | 0.5 | 112.2 | 78 | 7 | - | - | 10500 | 9450 |
| 9 | 13 | 0.5 | 144 | 75 | 7 | - | - | 10500 | 9450 | |
| 10 | 11 | 0.5 | 137 | 78 | 7 | - | - | 10500 | 9450 | |
| 10 | 15 | 0 | 170 | 90 | 10 | - | - | 10500 | 9450 | |
| 12 | 10 | 0.5 | 155 | 95 | 7 | - | - | 10500 | 9450 | |
| 12 | 11 | 0.5 | 166.8 | 80 | 7 | - | - | 10500 | 9450 | |
| Tecc | 6 | 13 | 0.65 | 97.2 | 65 | 27 | - | - | 6900 | 6210 |
| 8 | 11 | 0.5 | 111.2 | 88 | 4 | - | - | 8300 | 7470 | |
| 8 | 15 | 0 | 136 | 75 | 11 | DIN5482 B58x53 | M10 (n° 3) | 10400 | 9360 | |
| 10 | 10 | 0.5 | 130 | 90 | 3 | - | - | 9500 | 8550 | |
| 14 | 14 | 0.5 | 236.6 | 100 | 1 | DIN5482 B58x53 | M10 (n° 3) | 10500 | 9450 | |
| T6 T8 | 10 | 13 | 0.6 | 161 | 86 | 17 | - | - | 10500 | 9450 |
| 10 | 14 | 0.5 | 168 | 80 | 2.5 | - | - | 10500 | 9450 | |
| 10 | 12 | 0.55 | 150.5 | 93 | 3 | - | - | 10500 | 9450 | |
| 12 | 10 | 0.5 | 155 | 108 | 5.5 | - | - | 10500 | 9450 | |
| T18 | 8 | 14 | 0 | 128 | 79.5 | 16 | DIN5482 B70x64 | M10 (n° 3) | 10500 | 9450 |
| 10 | 14 | 0.32 | 166.4 | 90 | 15 | 13200 | 11880 | |||
| 12 | 13 | 0.5 | 192 | 80 | 21 | 13200 | 11880 | |||
| 14 | 15 | 0.5 | 250.6 | 105 | 6 | 13200 | 11880 | |||
| NR NR3 | 5 | 22 | 0 | 120 | 50 | 27.5 | DIN5482 B58x53 | M10 (n° 3) | 9250 | 8325 |
| 8 | 11 | 0.5 | 110.8 | 79 | 10.5 | - | - | 9250 | 8325 | |
| 8 | 16 | 0.5 | 149.5 | 73 | 20.5 | - | - | 9250 | 8325 | |
| 10 | 11 | 0.5 | 139 | 100 | 12 | - | - | 9250 | 8325 | |
| 10 | 12 | 0.5 | 149 | 90 | 19.5 | - | - | 9250 | 8325 | |
RE 610
Support: DBS

Support: DBS2

Support: T18

Shaft:

| Support | ØD1 | ØD2 | S | Ls | L | L1 | L2 | t | ØDt | Lt |
| [ mm ] | ||||||||||
| DBS | 62 h7 | 72 h6 | DIN5482 B70x64 | 51 | 90 | 70 | 10 | M10 (n° 3) | 40 | 22 |
| DBS2 | 62 h7 | 72 h6 | DIN5482 B70x64 | 51 | 90 | 70 | 10 | M10 (n° 3) | 40 | 22 |
| T18 | 62 f7 | 72 f7 | DIN5482 B70x64 | 51 | 90 | 70 | 10 | M10 (n° 3) | 40 | 22 |
Pinions:

| Support | m | z | x | ØDE | BU | a | S | t | Tmax | |
| [mm] | Static [Nm] | Dynamic [Nm] | ||||||||
| DBS DBS2 | 8 | 14 | 0 | 128 | 79.5 | 15 | DIN 5482 B70x64 | M10 (n° 3) | 17500 | 15750 |
| 10 | 12 | 0.5 | 150 | 78 | 5 | - | - | 21500 | 19350 | |
| 10 | 13 | 0.5 | 160 | 85 | 19 | DIN 5482 B70x64 | M10 (n° 3) | 21000 | 18900 | |
| 10 | 14 | 0.5 | 170 | 90 | 5 | - | - | 24000 | 21600 | |
| 12 | 10 | 0 | 144 | 100 | 5 | - | - | 18500 | 16650 | |
| 12 | 12 | 0.5 | 180 | 100 | 5 | DIN 5482 B70x64 | M10 (n° 3) | 24000 | 21600 | |
| 12 | 14 | 0.5 | 204 | 105 | 5 | - | - | 24000 | 21600 | |
| 14 | 11 | 0.5 | 194.6 | 105 | 4 | - | - | 24000 | 21600 | |
| T18 | 8 | 20 | 0 | 176 | 115 | 15 | DIN 5482 B70x64 | M10 (n° 3) | 14500 | 13050 |
| 10 | 11 | 0.681 | 141 | 85 | 6 | - | - | 12000 | 10800 | |
| 12 | 10 | 0.5 | 156 | 120 | 6 | - | - | 12000 | 10800 | |
| 12 | 11 | 0.525 | 168.61 | 110 | 6 | - | - | 13500 | 12150 | |
RE 810
Support: Tecc

Support: TRecc

Shaft:

| Support | ØD1 | ØD2 | S | Ls | L | L1 | L2 | t | ØDt | Lt |
| [ mm ] | ||||||||||
| Tecc | 62 f7 | 72 f7 | DIN5482 B70x64 | 51 | 90 | 70 | 10 | M10 (n° 3) | 40 | 22 |
| TRecc | ||||||||||
Pinions:

| Support | m | z | x | ØDE | BU | a | S | t | Tmax | |
| [mm] | Static [Nm] | Dynamic [Nm] | ||||||||
| Tecc | 8 | 14 | 0 | 128 | 79.5 | 11.5 | DIN 5482 B70x64 | M10 (n° 3) | 10500 | 9450 |
| 9 | 15 | 0 | 152.64 | 101 | 6.5 | - | - | 12500 | 11250 | |
| 10 | 14 | 0.5 | 169 | 90 | 1.5 | DIN 5482 B70x64 | M10 (n° 3) | 14500 | 13050 | |
| 12 | 13 | 0.5 | 192 | 95 | 32.5 | 13500 | 12150 | |||
| 14 | 15 | 0.5 | 250.6 | 105 | 1.5 | 21000 | 18900 | |||
| TRecc | 8 | 15 | 0.3 | 140 | 80 | 13.5 | DIN 5482 B70x64 | M10 (n° 3) | 15200 | 13680 |
| 10 | 13 | 0.5 | 160 | 90 | 5.5 | - | - | 17800 | 16020 | |
| 10 | 18 | 0 | 198 | 80 | 5.5 | - | - | 23800 | 21420 | |
| 12 | 12 | 0.5 | 180 | 100 | 3.5 | DIN 5482 B70x64 | M10 (n° 3) | 19000 | 17100 | |
| 12 | 14 | 0.5 | 199 | 100 | 33.5 | 16000 | 14400 | |||
Advantages of Planetary Slewing Drive for Tow Truck Cranes
- High Torque Output and Compact Design
Planetary slewing drives are engineered to deliver exceptional torque in a compact structure. This design maximizes power transmission efficiency, allowing tow truck cranes to handle heavy loads with ease. The compact form factor also saves valuable space, making it ideal for mobile applications where size constraints are critical. - 360-Degree Rotation Capability
These planetary slewing drive gearboxes enable smooth and precise 360-degree slewing motion, allowing tow truck crane booms or wrecker arms to rotate seamlessly. This unrestricted movement enhances operational flexibility, enabling operators to lift, tow, or position vehicles from any angle, even in tight or challenging roadside recovery situations. - Enhanced Durability and Longevity
Built with robust materials and advanced engineering, slewing planetary gearboxes are designed to withstand extreme loads and harsh environmental conditions. Their durability reduces wear and tear on critical components, minimizing downtime and extending the overall lifespan of tow truck cranes, even with frequent heavy-duty use. - Efficient Power Transmission
The planetary gear system ensures high efficiency in power transmission by distributing load evenly across multiple gears. This results in reduced energy loss, lower operating temperatures, and optimized performance. Operators benefit from consistent reliability and smoother crane operations, even under demanding workloads. - Improved Stability and Safety
The precise rotational control provided by planetary slewing gearboxes enhances the stability of tow truck cranes during lifting and towing operations. This minimizes risks such as load imbalance or tipping, ensuring safe and secure handling of vehicles, especially during roadside recovery in unpredictable conditions. - Versatility Across Applications
With customizable configurations, slewing drive planetary gearboxes can be tailored to meet the specific needs of tow truck cranes. Whether used in hydraulic or electric systems, their adaptability ensures seamless integration, making them suitable for various crane types and applications in diverse recovery scenarios.

Slewing Drive Planetary Gearbox Applications
- Tow Truck Cranes
Slewing drive planetary gearboxes are essential for tow truck cranes, enabling precise 360-degree rotation of the boom or wrecker arm. This allows operators to efficiently lift and tow vehicles from various angles, ensuring stability, safety, and smooth performance during demanding roadside recovery operations or vehicle extractions. - Aerial Work Platforms
In aerial work platforms, planetary slewing drives provide reliable rotational control for elevated equipment. Their compact design and high torque output allow effortless movement of platforms, ensuring precise positioning and enhanced safety for workers performing tasks like maintenance, construction, or inspections at significant heights. - Wind Turbine Systems
Slewing drive gearboxes play a crucial role in wind turbines by controlling the yaw system, which rotates the blades to face optimal wind directions. Their durability and efficiency ensure smooth operation under heavy loads and extreme weather conditions, maximizing energy generation and system reliability over time. - Excavators and Construction Equipment
In excavators and other heavy construction machinery, planetary slewing gearboxes enable the smooth rotation of the upper structure. This allows operators to maneuver equipment efficiently, even in restricted spaces, ensuring precise digging, lifting, or material handling while maintaining stability under heavy-duty workloads. - Marine Cranes and Offshore Equipment
Marine cranes and offshore equipment rely on planetary slewing drive gearboxes for seamless rotational control while operating in harsh maritime environments. Their corrosion-resistant design and ability to handle heavy loads make them indispensable for applications such as ship loading, underwater operations, and offshore construction projects. - Solar Tracking Systems
In large-scale solar energy installations, slewing gearboxes ensure the precise movement of solar panels to track the sun’s position throughout the day. This improves energy efficiency by maximizing sunlight exposure, while their compact and reliable design ensures long-term performance in outdoor environments.
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| Planetary Slewing Drive for Rough Terrain Cranes | Planetary Slewing Drive for Crawler Cranes |
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| Planetary Slewing Drive for Deck Cranes | Planetary Slewing Drive for Solar Tracking Systems |
Planetary Slewing Drives Vs. Planetary Winch Drives
Planetary slewing drives and planetary winch drives are two specialized systems that leverage planetary gear mechanisms to perform distinct tasks in industrial and mechanical applications. While they share similarities in design and efficiency, their applications and operational purposes differ significantly.
Planetary Slewing Drives:
Planetary slewing drives are compact, high-torque systems designed for rotational motion and load handling. They consist of a planetary gear system enclosed in a robust housing and are primarily used in applications that require controlled and smooth rotational movement. Commonly found in solar trackers, cranes, wind turbines, and excavators, slewing drives allow heavy-duty equipment to rotate with precision. Their key advantage lies in their high torque-to-weight ratio, enabling them to handle significant loads while maintaining compact dimensions. Additionally, slewing drives often include self-locking capabilities, ensuring safety and stability during operation. They are critical for applications where rotational alignment or heavy payload positioning is required.
Planetary Winch Drives:
Planetary winch drives, on the other hand, are specifically designed for linear motion and lifting applications. These systems are the driving force behind winches used in construction, marine, and mining industries. Their ability to generate immense pulling power makes them ideal for hoisting heavy materials, dragging equipment, or anchoring vessels. The planetary gear system in a winch drive ensures smooth and efficient torque transmission, enabling controlled operation under high loads. Unlike slewing drives, winch drives are optimized for vertical or linear force, with features like load-holding brakes for enhanced safety.
Planetary slewing drives excel in rotational applications, while planetary winch drives are tailored for lifting and pulling tasks. Both systems rely on the efficiency of planetary gear mechanisms, but their distinct designs make them indispensable for specific industrial needs.
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| Planetary Slewing Drives | Planetary Winch Drives |
Additional information
| Edited by | Yjx |
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