22PA/20BYG0 pages

SEI

22PA/20BYG
PLANET GEAR STEPPER MOTOR

www.sei-automation.com

2010-2011
Housing Material:Metal
Backlash at No-Load:≤2º
Bearing at OutputBall or Sleeve
Permissible Overhung Load:≤2.5kg
Permissible Thrust Load:≤0.5kg
Max.Radial Play:≤0.05mm
Max.Thrust Play:≤0.3mm

Gear Box Data
X:1

Reduction Ratio

4

19

16

3
4

19

9
22 16

76

90

64

22

16

5

76

1
4

64

107
11

Exact Reduction Ratio

X:1

4

Number of gear trains

#

1

1

2

2

2

3

3

3

3

Max Permissible Torque

kg. cm

5

5

7

7

7

9

9

9

9

Moment Permissible Torque

kg.cm

10

10

15

15

15

20

20

20

20

mm

21

21

26

26

26

31

31

31

31

Gear Box Length (L)

4

90

107 64

Motor specifications
Length Phase
Phase
(Ld)
Voltage Current

Step
Angle

Model

Phase
Resistance

Phase
Inductance

Holding
Torque

Lead
Wire

(°)

(mm)

(V)

(A)

(Ω)

(mH)

(g.cm)

(#)

20BYGH28-020-4A/B

1.8

28

4.8

0.20

24

8

160

4

20BYGH30-050-6A/B

1.8

30

5.75

0.50

11.5

1.7

180

6

20BYGH33-060-4A/B

1.8

33

3.9

0.60

6.5

2.2

200

4

20BYGH38-060-4A/B

1.8

38

6

0.60

10

5.5

400

4

Mechanical Dimensions
20.3

Ld

L

9
20.3

3.5

Φ13

Φ22

Φ4

15

4(6)Leads

4-M2

1.5

Φ17

22

PA

016G

20

BYG

28

020

4A/B

Frame slze
22=Φ22mm

Planetary

Gear Ratlo
016=16:1

Motor slze
20=20X20

Hybrid Motor

Body Length
28=28mm

Phase Current
020=0.20A

#Ieads 4=4Ieads
Shaft A=single
B=double