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All Categories > Planetary Reducer Gearboxes > Servobox Series Model SA Planetary Reducer Gearboxes > Model Number SA70-50-P2  
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Model Number SA70-50-P2, Servobox Series Model SA70 2-Stage, 50 Ratio, Standard Output Bearing, and P2 Backlash Class Planetary Reducer Gearbox


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

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

High Efficiency
Efficiency for 1-stage model exceeds 95%; 2-stage model exceeds 92%.




Specifications  · Dimensions  · Features

Specifications

Brands
Pelonis Technologies

Model
70

Ratio
50

Output Bearing
Standard (Keyway)

Backlash Class
P2

Stage
2-Stage

Rated Output Torque (Nominal Output Torque) (T2N)
45 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)
6000 rpm

Backlash
≤ 9 arc·min

Torsional Rigidity
3 N·m/arc·min

Maximum Radial Force (F2rB)
800 N

Maximum Axial Force (F2aB)
400 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
≤ 60 dB

Weight
2.2 kg

Weight Tolerance (±)
2 %

Mass Moments of Inertia
0.13 kg·cm²


Dimensions

Dimension A1
62 mm

Dimension A2
M5 x 0.8

Dimension A3
16 mm

Dimension A4
52 mm

Dimension A5
6 mm

Dimension A6
M5 x 0.8

Dimension A7
5 mm

Dimension A8
18 mm

Dimension B1
70 mm

Dimension B2
36 mm

Dimension B3
6.5 mm

Dimension B4
1.5 mm

Dimension B5
20 mm

Dimension B6
28 mm

Dimension B7
148.8 mm

Dimension C1
70 mm
75 mm
90 mm

Dimension C2
M5
M6

Dimension C3
14 mm
19 mm

Dimension C4
33.5 mm
41 mm

Dimension C5
50 mm
60 mm
70 mm

Dimension C6
M5 x 0.8

Dimension C7
70 mm
75 mm
80 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.

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 Gearbox and Advanced Surface Treatment
The gearbox and the internal ring are one-piece constructed to achieve high rigidity and high torque.


Cooling

Heating

Motors