Model Number FB70-50, Servobox Series Model FB70 2-Stage, 50 Ratio, and Standard Output Bearing Planetary Reducer Gearbox On Pelonis Technologies, Inc.

Integrated Planetary Arm Bracket
The planetary arm bracket and the output shaft are one-piece constructed to increase torsional rigidity and accuracy. The entire structure is machined for controlling accuracy in the specified tolerance.

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.

Unit of Measure

Specifications | Dimensions | Features

Specifications

Brands	N/A Pelonis Technologies
Model	N/A 70
Ratio	N/A 50
Output Bearing	N/A Standard (Keyway)
Stage	N/A 2-Stage
Rated Output Torque (Nominal Output Torque) (T_2N)	N/A 42 N·m
Maximum Acceleration Torque (T_2B)	N/A 1.8 Times of Rated Output Torque
Maximum Output Torque (Emergency Stop Torque) (T_2NOT)	N/A 3 Times of Rated Output Torque
Rated Input Speed (n_1N)	N/A 3000 rpm
Maximum Input Speed (n_1B)	N/A 5000 rpm
Backlash	N/A ≤ 12 arc·min
Torsional Rigidity	N/A 5 N·m/arc·min
Maximum Radial Force (F_2rB)	N/A 1180 N
Maximum Axial Force (F_2aB)	N/A 590 N
S5 Cycle Operation Service Life (L_H)	N/A >30000 hours
S1 Continuous Operation Service Life (L_H)	N/A >15000 hours
Efficiency (η)	N/A ≥ 94 %
Operating Temperature	N/A -25 to +90 ºC
Lubrication	N/A Synthetic Grease
Protection Class	N/A Ingress Protection (IP65)
Mounting Position	N/A Any
Noise Level	N/A ≤ 65 dB
Weight	N/A 2.24 kg
Weight Tolerance (±)	N/A 3 %
Mass Moments of Inertia	N/A 0.11 kg·cm²

Dimensions

Dimension A1	N/A 70 mm
Dimension A2	N/A 6 mm
Dimension A3	N/A 16 mm
Dimension A4	N/A 50 mm
Dimension A5	N/A 6 mm
Dimension A6	N/A M5 x P0.8
Dimension A7	N/A 5 mm
Dimension A8	N/A 18 mm
Dimension B1	N/A 70 mm
Dimension B2	N/A 5 mm
Dimension B3	N/A 20 mm
Dimension B4	N/A 28 mm
Dimension B5	N/A 34 mm
Dimension B6	N/A 8 mm
Dimension B7	N/A 166.5 mm
Dimension C1	N/A 70 mm75 mm90 mm
Dimension C2	N/A M4 M5 M6
Dimension C3	N/A 14 mm
Dimension C4	N/A 33.5 mm
Dimension C5	N/A 40 mm50 mm60 mm
Dimension C6	N/A M5 x P0.8
Dimension C7	N/A 64 mm70 mm80 mm

Features

N/A High Precision Gear Machining
The planetary gear and sun gear are manufactured from high quality Ni-Cr-Mo alloy steel (SNCM220), precision machined and carburizing heat treatment to hardness 57-60 HRC. Precision teeth grinding or skiving ensures gear accuracy reaches DIN6 class.

One-piece Gear Box Housing
The gear box and internal ring gear are one-piece constructed. High gear accuracy meets DIN6 class.

Specifications

Brands

Model

Ratio

Output Bearing

Stage

Rated Output Torque (Nominal Output Torque) (T2N)

Maximum Acceleration Torque (T2B)

Maximum Output Torque (Emergency Stop Torque) (T2NOT)

Rated Input Speed (n1N)

Maximum Input Speed (n1B)

Backlash

Torsional Rigidity

Maximum Radial Force (F2rB)

Maximum Axial Force (F2aB)

S5 Cycle Operation Service Life (LH)

S1 Continuous Operation Service Life (LH)

Efficiency (η)

Operating Temperature

Lubrication

Protection Class

Mounting Position

Noise Level

Weight

Weight Tolerance (±)

Mass Moments of Inertia

Dimensions

Dimension A1

Dimension A2

Dimension A3

Dimension A4

Dimension A5

Dimension A6

Dimension A7

Dimension A8

Dimension B1

Dimension B2

Dimension B3

Dimension B4

Dimension B5

Dimension B6

Dimension B7

Dimension C1

Dimension C2

Dimension C3

Dimension C4

Dimension C5

Dimension C6

Dimension C7

Features

Features

Rated Output Torque (Nominal Output Torque) (T_2N)

Maximum Acceleration Torque (T_2B)

Maximum Output Torque (Emergency Stop Torque) (T_2NOT)

Rated Input Speed (n_1N)

Maximum Input Speed (n_1B)

Maximum Radial Force (F_2rB)

Maximum Axial Force (F_2aB)

S5 Cycle Operation Service Life (L_H)

S1 Continuous Operation Service Life (L_H)