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All Categories > Planetary Reducer Gearboxes > Servobox Series Model FA Planetary Reducer Gearboxes > Model Number FA120-20N  
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Model Number FA120-20N, Servobox Series Model FA120 2-Stage, 20 Ratio, and Solid Output Shaft Output Bearing Planetary Reducer Gearbox


Quiet Operation
Grinding spiral bevel gear and Helical gears reduce vibration and noise.

High Rigidity and High Torque
High rigidity and high torque are achieved by integrant needle roller bearings and are one-piece constructed.




Specifications  · Dimensions  · Features

Specifications

Brands
Pelonis Technologies

Model
120

Ratio
20

Output Bearing
Solid Output Shaft (No Keyway)

Stage
2-Stage

Rated Output Torque (Nominal Output Torque) (T2N)
255 N·m

Maximum Acceleration Torque (T2B)
1.8 Times of Rated Output Torque

Maximum Output Torque (Emergency Stop Torque) (T2NOT)
3 Times of Rated Output Torque

Rated Input Speed (n1N)
3000 rpm

Maximum Input Speed (n1B)
5000 rpm

Backlash
≤ 12 arc·min

Torsional Rigidity
23 N·m/arc·min

Maximum Radial Force (F2rB)
5220 N

Maximum Axial Force (F2aB)
2600 N

S5 Cycle Operation Service Life (LH)
>30000 hours

S1 Continuous Operation Service Life (LH)
>15000 hours

Efficiency (η)
≥ 94 %

Operating Temperature
-25 to +90 ºC

Lubrication
Synthetic Grease

Protection Class
Ingress Protection (IP65)

Mounting Position
Any

Noise Level
≤ 69 dB

Weight
10.3 kg

Weight Tolerance (±)
2 %

Mass Moments of Inertia
2.64 kg·cm²


Dimensions

Dimension A1
135 mm

Dimension A2
M10 x P1.5

Dimension A3
32 mm

Dimension A4
110 mm

Dimension A5
10 mm

Dimension A6
M10 x P1.5

Dimension A7
10 mm

Dimension A8
35 mm

Dimension B1
120 mm

Dimension B2
72 mm

Dimension B3
10 mm

Dimension B4
179 mm
189 mm

Dimension B5
40 mm

Dimension B6
50 mm

Dimension B7
10 mm

Dimension B8
261 mm
271 mm

Dimension C1
115 mm
145 mm
165 mm

Dimension C2
M6
M8
M10

Dimension C3
24 mm
28 mm
32 mm

Dimension C4
67 mm
77 mm

Dimension C5
95 mm
110 mm
130 mm

Dimension C6
M8 x P1.25

Dimension C7
122 mm
130 mm
150 mm


Features
Helical Gear Design
The speed reduction mechanism employs helical gears and provides two times the meshing rate of teeth compared to regular spur gears. It also features extremely smooth operation, low noise, high torque output, and low backlash.

High Precision Gear Machining
Manufactured from high quality Ni-Cr-Mo alloy steel (SNCM220), precision machined and carbonized to hardness 57-60 HRC. Precision teeth grinding ensures gear accuracy reaches DIN6 class.

Full Needle Roller Bearings Design
The planetary gear transmission employs full needle roller bearings without a retainer to increase the contact surface. This greatly improves structural rigidity and service life.

Integrated Planetary Arm Bracket
The planetary arm bracket and the output shaft are one-piece constructed to increase torsional rigidity and accuracy.

One-piece Gear Box and Advanced Surface Treatment
The gear box and the internal ring are one-piece constructed to achieve high rigidity and high torque.

Collet Locking Mechanism
The input-end and the motor are coupled through a collet locking mechanism. The mechanism is dynamically balanced to ensure concentricity and balance on the connection and has no backlash for power transmission while running at a high speed.


Cooling

Heating

Motors