Product Description
Best Price Prf90 Series Planetary Gearbox for 750W servo motor
Descriptions:
1.Square flange output,standard size;
2.The input connection specifications are competeand there are many choices;
3.Straight transmission,single cantilever structure,design simple,high cost performance;
4.Stable operation,low noise;
5.Keyway can be opened in the force shaft;
6.Size range:40-160mm;
7.Ratio range:3-100;
8.Backlash: 8-16arcmin
Product Parameters
| Specifications | PRF40 | PRF60 | PRF80 | PRF90 | PRF120 | PRF160 | |||
| Technal Parameters | |||||||||
| Max. Torque | Nm | 1.5times rated torque | |||||||
| Emergency Stop Torque | Nm | 2.5times rated torque | |||||||
| Max. Radial Load | N | 185 | 240 | 400 | 450 | 1240 | 2250 | ||
| Max. Axial Load | N | 150 | 220 | 420 | 430 | 1000 | 1500 | ||
| Torsional Rigidity | Nm/arcmin | 0.7 | 1.8 | 4.7 | 4.85 | 11 | 35 | ||
| Max.Input Speed | rpm | 8000 | 8000 | 6000 | 6000 | 6000 | 4000 | ||
| Rated Input Speed | rpm | 4500 | 4000 | 3500 | 3500 | 3500 | 3000 | ||
| Noise | dB | ≤55 | ≤58 | ≤60 | ≤60 | ≤65 | ≤70 | ||
| Average Life Time | h | 20000 | |||||||
| Efficiency Of Full Load | % | L1≥96% L2≥94% | |||||||
| Return Backlash | P1 | L1 | arcmin | ≤8 | ≤8 | ≤8 | ≤8 | ≤8 | ≤8 |
| L2 | arcmin | ≤12 | ≤12 | ≤12 | ≤12 | ≤12 | ≤12 | ||
| P2 | L1 | arcmin | ≤16 | ≤16 | ≤16 | ≤16 | ≤16 | ≤16 | |
| L2 | arcmin | ≤20 | ≤20 | ≤20 | ≤20 | ≤20 | ≤20 | ||
| Moment Of Inertia Table | L1 | 3 | Kg*cm2 | 0.1 | 0.46 | 0.77 | 1.73 | 12.78 | 36.72 |
| 4 | Kg*cm2 | 0.1 | 0.46 | 0.77 | 1.73 | 12.78 | 36.72 | ||
| 5 | Kg*cm2 | 0.1 | 0.46 | 0.77 | 1.73 | 12.78 | 36.72 | ||
| 7 | Kg*cm2 | 0.06 | 0.41 | 0.65 | 1.42 | 11.38 | 34.02 | ||
| 10 | Kg*cm2 | 0.06 | 0.41 | 0.65 | 1.42 | 11.38 | 34.02 | ||
| L2 | 12 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | |
| 15 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | ||
| 16 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | ||
| 20 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | ||
| 25 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | ||
| 28 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | ||
| 30 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | ||
| 35 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | ||
| 40 | Kg*cm2 | 0.08 | 0.44 | 0.72 | 1.49 | 12.18 | 34.24 | ||
| 50 | Kg*cm2 | 0.05 | 0.34 | 0.58 | 1.25 | 11.48 | 34.02 | ||
| 70 | Kg*cm2 | 0.05 | 0.34 | 0.58 | 1.25 | 11.48 | 34.02 | ||
| 100 | Kg*cm2 | 0.05 | 0.34 | 0.58 | 1.25 | 11.48 | 34.02 | ||
| Technical Parameter | Level | Ratio | PRF40 | PRF60 | PRF80 | PRF90 | PRF120 | PRF160 | |
| Rated Torque | L1 | 3 | Nm | / | 27 | 50 | 96 | 161 | 384 |
| 4 | Nm | 16 | 40 | 90 | 122 | 210 | 423 | ||
| 5 | Nm | 15 | 40 | 90 | 122 | 210 | 423 | ||
| 7 | Nm | 12 | 34 | 48 | 95 | 170 | 358 | ||
| 10 | Nm | 10 | 16 | 22 | 56 | 86 | 210 | ||
| L2 | 12 | Nm | / | 27 | 50 | 95 | 161 | 364 | |
| 15 | Nm | / | 27 | 50 | 96 | 161 | 364 | ||
| 16 | Nm | 16 | 40 | 90 | 122 | 210 | 423 | ||
| 20 | Nm | 15 | 40 | 90 | 122 | 210 | 423 | ||
| 25 | Nm | 16 | 40 | 90 | 122 | 210 | 423 | ||
| 28 | Nm | 16 | 40 | 90 | 122 | 210 | 423 | ||
| 30 | Nm | / | 27 | 50 | 96 | 161 | 364 | ||
| 35 | Nm | 12 | 40 | 90 | 122 | 210 | 423 | ||
| 40 | Nm | 16 | 40 | 90 | 122 | 210 | 423 | ||
| 50 | Nm | 15 | 40 | 90 | 122 | 210 | 423 | ||
| 70 | Nm | 12 | 34 | 48 | 95 | 170 | 358 | ||
| 100 | Nm | 10 | 16 | 22 | 96 | 80 | 210 | ||
| Degree Of Protection | IP65 | ||||||||
| Operation Temprature | ºC | – 10ºC to -90ºC | |||||||
| Weight | L1 | kg | 0.43 | 0.98 | 2.3 | 3.12 | 7.08 | 15.5 | |
| L2 | kg | 0.65 | 1.26 | 2.97 | 3.82 | 8.7 | 17 | ||
Company Profile
FAQ
Q: What’re your main products?
A: We currently produce planetary gearbox, right angle reducer, hollow rotary platform, precision gear, custom gear, worm wheel worm gear, chain gear, gear rack, gear ring and timing belt pulley etc.
Q: How to select a suitable planetary gearbox?
A: Firstly, if you have motor pictures or drawings to show us, we can recommend suitable planetary gearbox and give your best price. If you don’t motor drawings and please give your motor parameters to us, we can send our planetary gearbox drawings to send you, and we give your best price after you check it ok.
Q: What’s your lead time?
A: Generally speaking, our samples will need 7-15 days.
We are very flexible on the lead time, it will depend on the specific orders
| Application: | Motor, Machinery, Marine, Agricultural Machinery, Textile Machinery |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Layout: | Coaxial |
| Gear Shape: | Bevel Gear |
| Step: | Single-Step |
| Samples: | US$ 92/Piece 1 Piece(Min.Order) | |
|---|
| Customization: | Available | Customized Request |
|---|

Role of Sun, Planet, and Ring Gears in Planetary Gearboxes
The arrangement of sun, planet, and ring gears is a fundamental aspect of planetary gearboxes and significantly contributes to their performance. Each gear type plays a specific role in the gearbox’s operation:
- Sun Gear: The sun gear is located at the center and is driven by the input power source. It transmits torque to the planet gears, causing them to orbit around it. The sun gear’s size and rotation speed affect the overall gear ratio of the system.
- Planet Gears: Planet gears are smaller gears that surround the sun gear. They are held in place by the planet carrier and mesh with both the sun gear and the internal teeth of the ring gear. As the sun gear rotates, the planet gears revolve around it, engaging with both the sun and ring gears simultaneously. This arrangement multiplies torque and changes the direction of rotation.
- Ring Gear (Annulus Gear): The ring gear is the outermost gear with internal teeth that mesh with the planet gears’ external teeth. It remains stationary or acts as the output shaft. The interaction between the planet gears and the ring gear causes the planet gears to rotate on their own axes as they orbit the sun gear.
The arrangement of these gears allows for various gear reduction ratios and torque multiplication effects, making planetary gearboxes versatile and efficient for a wide range of applications. The combination of multiple gear engagements and interactions distributes the load across multiple gear teeth, resulting in higher torque capacity, smoother operation, and lower stress on individual gear teeth.
Planetary gearboxes offer advantages such as compact size, high torque density, and the ability to achieve multiple gear reduction stages within a single unit. The arrangement of the sun, planet, and ring gears is essential for achieving these benefits while maintaining efficiency and reliability in various mechanical systems.


editor by CX 2023-08-23

