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All Categories > Planetary Reducer Gearboxes > Servobox Series Model PB-A Planetary Reducer Gearboxes > Model Number PB-A220A-70  
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Model Number PB-A220A-70, Servobox Series Model PB220A 2-Stage, 70 Ratio, and Standard Output 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%.




Specifications  · Dimensions  · Features

Specifications

Brands
Pelonis Technologies

Model
220A

Ratio
70

Output Bearing
Standard (Keyway)

Stage
2-Stage

Rated Output Torque (Nominal Output Torque) (T2N)
1645 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)
4000 rpm

Backlash
≤ 10 arc·min

Torsional Rigidity
240 N·m/arc·min

Maximum Radial Force (F2rB)
48450 N

Maximum Axial Force (F2aB)
24225 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
≤ 70 dB

Weight
59 kg

Weight Tolerance (±)
3 %

Mass Moments of Inertia
54.58 kg·cm²


Dimensions

Dimension A1
250 mm

Dimension A2
17 mm

Dimension A3
75 mm

Dimension A4
180 mm

Dimension A5
12.5 mm
14.5 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
20 mm

Dimension C1
200 mm
265 mm
300 mm

Dimension C2
M12
M16

Dimension C3
42 mm
48 mm
55 mm

Dimension C4
117.5 mm
119.5 mm

Dimension C5
114.3 mm
230 mm
250 mm

Dimension C6
M10 x P1.5

Dimension C7
222 mm
250 mm
265 mm

Dimension C8
460.5 mm
462.5 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


Cooling

Heating

Motors