Planetary Slewing Drive Gearbox for Radar Antennas
A planetary slewing drive gearbox for radar antennas is a sophisticated electromechanical transmission system engineered to provide precise rotational control and high-torque output for radar antenna applications. It integrates a compact planetary gear set with a robust slewing ring bearing, typically enclosed in a sealed housing to withstand harsh environmental conditions such as extreme temperatures, vibration, and moisture exposure. This design enables smooth, backlash-free rotation over 360 degrees, facilitating accurate azimuth and elevation adjustments essential for radar tracking, surveillance, and communication systems.
A planetary slewing drive gearbox for radar antennas is a sophisticated electromechanical transmission system engineered to provide precise rotational control and high-torque output for radar antenna applications. It integrates a compact planetary gear set with a robust slewing ring bearing, typically enclosed in a sealed housing to withstand harsh environmental conditions such as extreme temperatures, vibration, and moisture exposure. This design enables smooth, backlash-free rotation over 360 degrees, facilitating accurate azimuth and elevation adjustments essential for radar tracking, surveillance, and communication systems. By combining the efficiency of planetary gearing with the load-bearing capabilities of a slewing ring, this slewing planetary gearbox ensures stable performance during continuous scanning operations, reducing maintenance needs and enhancing operational precision in demanding scenarios.

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 | |||
Key Benefits of Planetary Slewing Drive for Radar Antennas
- Precise 360-Degree Rotation Control
A planetary slewing drive offers smooth, backlash-free 360-degree rotational control, ensuring accurate adjustments in azimuth and elevation. This precision is critical for radar antennas used in tracking, surveillance, and communication systems, where even minor errors in positioning can compromise performance and data reliability. - High Torque and Load Capacity
By combining planetary gearing with a slewing ring bearing, these planetary slewing drive gearboxes deliver exceptional torque and load-bearing capabilities. This allows radar antennas to operate smoothly under heavy-duty conditions, such as strong wind resistance or frequent directional adjustments, ensuring stable performance in demanding environments. - Durable and Weather-Resistant Design
Planetary slew drives are housed in sealed enclosures designed to withstand harsh environmental conditions, including extreme temperatures, moisture, dust, and vibrations. This robust construction ensures reliable operation in outdoor or adverse environments, extending the lifespan of radar systems significantly. - Enhanced Efficiency and Low Energy Consumption
The optimized design of a slewing planetary gearbox minimizes energy loss while delivering high mechanical efficiency. This not only reduces power consumption but also enhances the overall performance of radar antennas, making them more effective and cost-efficient for long-term use. - Low Maintenance Requirements
Thanks to their compact yet robust design, planetary slewing gearboxes require minimal maintenance. The integration of a sealed housing and high-quality components reduces wear and tear, leading to less downtime and lower operational costs, making them an ideal choice for continuous radar operations. - Versatility Across Applications
Slewing drive planetary gearboxes are adaptable to various radar applications, from military surveillance to weather monitoring and air traffic control. Their ability to handle dynamic loads and ensure precise movements makes them a valuable component across diverse industries requiring reliable radar antenna performance.

Slewing Planetary Gearbox Applications
- Satellite Communication Systems
These slewing gearboxes play a vital role in satellite communication systems by enabling smooth, backlash-free rotation of antennas. Their precision ensures accurate alignment with satellites, optimizing signal transmission and reception. The robust and low-maintenance design guarantees continuous operation, even in harsh weather conditions or when handling heavy satellite dish loads. - Renewable Energy Systems (Solar Trackers)
Slewing planetary gearboxes are widely used in solar tracking systems, allowing solar panels to follow the sun’s movement for maximum energy capture. Their high efficiency, load-carrying capacity, and durability ensure that solar trackers can operate reliably over long periods, reducing energy waste and increasing overall system performance. - Cranes and Heavy-Duty Machinery
In cranes and other heavy-duty equipment, planetary slewing drive gearboxes enable precise rotation and load handling. Their ability to manage high torque and dynamic loads ensures safe and efficient operation. These gearboxes are critical in construction, shipping, and industrial applications requiring smooth movement under varying load conditions. - Wind Turbine Yaw and Pitch Systems
Wind turbines rely on slewing drive planetary gearboxes for yaw and pitch control, enabling turbines to adjust to wind direction and optimize blade angles. These gearboxes provide the strength and precision required to handle the immense forces exerted by wind, ensuring efficient energy generation and long-term operational reliability. - Mining and Excavation Equipment
In mining and excavation, planetary slewing gearboxes are used for rotating large machinery such as drilling rigs and excavators. Their rugged construction and high torque capacity allow them to handle the extreme stresses of these demanding environments, ensuring consistent performance and minimal downtime in critical mining operations.
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| Planetary Slewing Drive for Telehandlers | Planetary Slewing Drive for Wind Turbines |
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| Planetary Slewing Drive for Tunnel Boring Machines | Planetary Slewing Drive for Solar Tracking Systems |
Planetary Slewing Drive Vs. Planetary Winch Drive
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| Planetary Slewing Drive | Planetary Winch Drive |
Additional information
| Edited by | Yjx |
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