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Servobox Series Model PB Planetary Reducer Gearboxes
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Servobox Series Model PB Planetary Reducer Gearboxes
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Model Number PB220-25N
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Model Number PB220-25N, Servobox Series Model PB220 2-Stage, 25 Ratio, and Solid Output Shaft Bearing Planetary Reducer Gearbox
Quiet Operation
Helical gears reduce vibration and noise.
High Torque
High output torque is compared to spur gear planetary gear reducers.
High Efficiency
Efficiency for 1-stage model exceeds 97%; 2-stage model exceeds 94%.
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Specifications
·
Dimensions
·
Features
Specifications
Brands
Pelonis Technologies
Model
220
Ratio
25
Output Bearing
Solid Output Shaft (No Keyway)
Stage
2-Stage
Rated Output Torque (Nominal Output Torque) (T
2N
)
1770
N·m
Maximum Acceleration Torque (T
2B
)
1.8 Times of Rated Output Torque
Maximum Output Torque (Emergency Stop Torque) (T
2NOT
)
3 Times of Rated Output Torque
Rated Input Speed (n
1N
)
3000
rpm
Maximum Input Speed (n
1B
)
4000
rpm
Backlash
≤ 10
arc·min
Torsional Rigidity
240
N·m/arc·min
Maximum Radial Force (F
2rB
)
48450
N
Maximum Axial Force (F
2aB
)
24225
N
S5 Cycle Operation Service Life (L
H
)
>30000
hours
S1 Continuous Operation Service Life (L
H
)
>15000
hours
Efficiency (η)
≥ 94
%
Operating Temperature
-25 to +90
ºC
Lubrication
Synthetic Grease
Protection Class
Ingress Protection (IP65)
Mounting Position
Any
Noise Level
≤ 70
dB
Weight
57.3
kg
Weight Tolerance (±)
3
%
Mass Moments of Inertia
22.79
kg·cm²
Dimensions
Dimension A1
250
mm
Dimension A2
17
mm
Dimension A3
75
mm
Dimension A4
180
mm
Dimension A5
11.5
mm
13.5
mm
Dimension A6
M16 x P2.0
Dimension A7
20
mm
Dimension A8
79.5
mm
Dimension B1
220
mm
Dimension B2
139
mm
Dimension B3
30
mm
Dimension B4
90
mm
Dimension B5
104
mm
Dimension B6
2
mm
Dimension C1
200
mm
215
mm
265
mm
Dimension C2
M10
M12
Dimension C3
38
mm
42
mm
48
mm
55
mm
Dimension C4
116.5
mm
118.5
mm
Dimension C5
114.3
mm
180
mm
230
mm
Dimension C6
M10 x P1.5
Dimension C7
182
mm
200
mm
250
mm
Dimension C8
446.5
mm
448.5
mm
Features
Integrated Planetary Arm Bracket
The planetary arm bracket and the output shaft are one-piece constructed to increase torsional rigidity and accuracy.
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.
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.
One-Piece Helical Gear Box
The gear box and internal ring are a one-piece construction design. The speed reduction mechanism employs helical gears that provide two times the meshing rate of teeth compared to regular spur gears. It operates very smoothly, has low noise, high output torque, and low backlash
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