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Quiet Operation
Helical gears reduce vibration and noise.

High Precision
Backlash ≤ 3 arc·min reaches precision alignment.

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

Specifications

Brands

 N/A Pelonis Technologies

Model

 N/A 75A

Ratio

 N/A 50

Output Bearing

 N/A Standard (Keyway)

Backlash Class

 N/A P2

Stage

 N/A 2-Stage

Rated Output Torque (Nominal Output Torque) (T2N)

 N/A 155 N·m

Maximum Acceleration Torque (T2B)

 N/A 1.8 Times of Rated Output Torque

Maximum Output Torque (Emergency Stop Torque) (T2NOT)

 N/A 3 Times of Rated Output Torque

Rated Input Speed (n1N)

 N/A 3000 rpm

Maximum Input Speed (n1B)

 N/A 6000 rpm

Backlash

 N/A ≤ 9 arc·min

Torsional Rigidity

 N/A 15 N·m/arc·min

Maximum Radial Force (F2rB)

 N/A 4150 N

Maximum Axial Force (F2aB)

 N/A 3780 N

S5 Cycle Operation Service Life (LH)

 N/A >30000 hours

S1 Continuous Operation Service Life (LH)

 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 ≤ 60 dB

Weight

 N/A 8.2 kg

Weight Tolerance (±)

 N/A 3 %

Mass Moments of Inertia

 N/A 0.45 kg·cm²

Dimensions

Dimension A1

 N/A 85 mm

Dimension A2

 N/A 6.8 mm

Dimension A3

 N/A 22 mm

Dimension A4

 N/A 70 mm

Dimension A5

 N/A 8 mm

Dimension A6

 N/A M8 x P1.25

Dimension A7

 N/A 6 mm

Dimension A8

 N/A 24.5 mm

Dimension B1

 N/A 76 mm

Dimension B2

 N/A 56 mm

Dimension B3

 N/A 18 mm

Dimension B4

 N/A 32 mm

Dimension B5

 N/A 36 mm

Dimension B6

 N/A 7 mm

Dimension B7

 N/A 214 mm

Dimension C1

 N/A 90 mm110 mm115 mm145 mm

Dimension C2

 N/A M5 M6 M8

Dimension C3

 N/A 19 mm22 mm24 mm

Dimension C4

 N/A 51 mm

Dimension C5

 N/A 70 mm80 mm95 mm110 mm

Dimension C6

 N/A M6 x P1.0

Dimension C7

 N/A 92 mm110 mm130 mm

Features

Features

 N/A High Load-Bearing Capacity
High load-bearing capacity is achieved by a dual tapper bearing.

One-Piece Helical Gear Box
The gear box and internal ring gear 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.

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.

Integrated Planetary Arm Bracket
The planetary arm bracket and the output shaft are a one-piece construction design that increases torsional rigidity and accuracy.