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

Pelonis Technologies

Model

255

Ratio

5

Output Bearing

Standard (Ball Bearing)

Backlash Class

Ps

Stage

1-Stage

Rated Output Torque (Nominal Output Torque) (T2N)

2010 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)

2000 rpm

Maximum Input Speed (n1B)

3000 rpm

Backlash

≤ 1 arc·min

Torsional Rigidity

1126 N·m/arc·min

Maximum Radial Force (Ball Bearing) (n2rB)

39600 N

Maximum Axial Force (Ball Bearing) (n2aB)

19800 N

Maximum Radial Force (Taper Bearing) (F2rB)

107200 N

Maximum Axial Force (Taper Bearing) (F2aB)

53600 N

S5 Cycle Operation Service Life (LH)

>30000 hours

S1 Continuous Operation Service Life (LH)

>15000 hours

Efficiency (η)

≥ 97 %

Operating Temperature

-25 to +90 ºC

Lubrication

Synthetic Grease

Protection Class

Ingress Protection (IP65)

Mounting Position

Any

Noise Level

≤ 70 dB

Weight

55 kg

Weight Tolerance (±)

3 %

Mass Moments of Inertia

53.19 kg·cm²

Dimensions

Dimension A1

280 mm

Number of Holes (A2)

16

Dimension A2

13.5 mm

Dimension A3

180 mm

Dimension A4

255 mm

Dimension A5

10.5 mm12.5 mm

Dimension A6

100 mm

Dimension A7

300 mm

Dimension A8

140 mm

Number of Holes (A9)

12

Dimension A9

M16 x P2.0

Dimension A10

12 mm

Dimension B1

255 mm

Dimension B2

66 mm

Dimension B3

20 mm

Dimension B4

12 mm

Dimension B5

20 mm

Dimension B6

32 mm

Dimension B7

18 mm

Dimension B8

10 mm

Dimension B9

263 mm265 mm

Dimension C1

200 mm265 mm300 mm

Dimension C2

M12 M16

Dimension C3

42 mm48 mm55 mm

Dimension C4

115.5 mm117.5 mm

Dimension C5

114.3 mm230 mm250 mm

Dimension C6

M10 x P1.5

Dimension C7

222 mm250 mm265 mm

Output Frame Dimensions

Output Frame Dimension A1

100 mm

Output Frame Dimension A2

140 mm

Output Frame Dimension A3

180 mm

Output Frame Dimension A4

255 mm

Output Frame Dimension A5

280 mm

Output Frame Dimension B6

M16 x P2

Output Frame Dimension B8

12 mm

Output Frame Dimension B9

13.5 mm

Features

Features

One-Piece Gearbox Housing
The gearbox and internal ring gear are a one-piece construction. High gear accuracy meets DIN6 class.

Full Needle Roller Bearings Design
The planetary gear transmission employs full needle roller bearings without a retainer to increase the contact surface that maximizes structural rigidity and service life.

Collet Locking Mechanism
The input-end and the motor are coupled through a collet locking mechanism that ensures concentricity and balance on the connection and no backlash for power transmission while running at high speed.

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.