Hollow Shaft Type Devices
Hollow Shaft Type
SRGP Series
Hollow-center shaft encoder enabling various combinations.
Hollow Shaft Typical Specifications
Type Devices
Items Specifications
Rating（max.） （min.）
/
10mA 5V DC/50BA 3V DC
（Resistive load）
1V max. at 1mA 5V DC
Output voltage
（Resistive load）
Without load 50,000cycles
Operating life
With load 50,000cycles
Product Line
Detent torque Number of Number of Operating Minimum order Drawing
Product No.
（mN･m） detent pulse direction unit（pcs.） No.
7±3 20 10 1,000 SRGP200200 1
13±4 16 Vertical SRGPWJ0500
16 600 2
6.5±4 32 SRGPWJ0200
Notes
1. Products other than those listed in the above chart are also available. Please contact us for details.
2. It is requested that the order placed be an integer multiple of the minimum order units. For export packing, please
consult us.
Encoder
Type
Potentiometer
Type
452
Hollow Shaft Type Devices
Hollow Shaft Type SRGP Series
Dimensions Unit:mm
PC board mounting hole dimensions
No. Style
（Viewed from the Direction A）
23.6 Hollow Shaft
9. 5 4.5 3.6 Type Devices
4
3.4 9
2 2
6 1.2
4
3
11.5
2-ø1.5 holes
C0.3
30˚
2.05
˚
ø17
2-30
A
3
1
ø2
3
11.5
ø2.05
13
ø2.1
13
11
.8
ø22
1 w C q 6 3-ø1 holes
2
Phase difference of code portion 17
6
Clockwise
9.5
Counter-clockwise
（36ﾟ）
（18ﾟ） Detent position
ON
1 OFF
ON
2 OFF
T1 T2 T3 T4
T
T1,T3＝1/4T±1/8T
T2,T4＝Phase difference shall not be reversed
0.6 31.8 0.6
ø30 9
ø18.5 4.5 3.5
3
ø16.3
1 1.2 Encoder
4-
Type
1
5
3.
Potentiometer
45˚
Type
3
0.
R0.5
C
3
ø21.9
A
3
1.6
2-ø2.55 holes
2-ø2.5
2-1.5
3
.4
15
17
18
2.5
ø23.9
18
5
0.
C
1 C 2
1.5
2 5 2.6 3.5
3-ø1 holes
5
20
23
31.8
Phase difference of code portion
Clockwise Clockwise
Counter-clockwise Counter-clockwise
（22.5ﾟ） （22.5ﾟ）
Detent position （11.25ﾟ） Detent position
ON ON
1 OFF 1 OFF
ON ON
2 OFF 2 OFF
T1 T2 T3 T4 T1 T2 T3 T4
T T
T1,T3=1 / 4T±1 / 8T T1,T3=1 / 4T±1 / 8T
T2,T4=Phase difference shall not be reversed T2,T4=Phase difference shall not be reversed
（SRGPWJ0500） （SRGPWJ0200）
Note
PC board thickness in above diagram is based on 1.6mm.
453
Hollow Shaft Type Devices
List of Varieties
Hollow type
Type
17mm size 22mm size 30mm size
Series SRGP30 SRGP40 SRGP20 SRGPWJ
Hollow Shaft
Type Devices
Photo
Output Incremental
Shaft types Hollow shaft
Operating direction Vertical
specifications
Number of pulse/ 16/16
9/18 12/24 10/20
Outline
Number of detent 16/32
Push switch Without
（Travel mm）
Optional
functions
Changeover angle 20° 15° 18° 22.5°
W 17.5 23.6 31.8
Dimensions
D 18.5 18.25 23 32
（mm）
H 2.3 1.55 4.5
＋1
Manual soldering 350±5℃, 3s max. 350±10℃, 3 0 s max. 350±10℃, 3 ＋10 s
Soldering Dip soldering 260±5℃, 5±1s
Reflow soldering Please see P.198 Encoder
Type
Maximum operating current（Resistive load） –10℃ to ＋60℃ –40℃ to ＋85℃
Potentiometer
Type
1V max.
at 5V DC,1mA
Electrical performance
（resistive load）
Output wave
5V
Measuring 5K½
circuit Measuring
terminal
Insulation resistance 100MΩ min. 100V DC
Voltage proof 100V AC for 1minute
2±1mN･m 13±4mN･m
Mechanical performance
Rotational torque 5±2.5mN･m 7±3mN･m
3.5±1mN･m 6.5±4mN･m
Terminal strength 5N for 1minute
Rotational direction
Actuator
20N 40N
strength
Push direction
Vibration 10 to 55 to 10Hz/min., the amplitude is 1.5mm for all the frequencies, in the 3 direction of X, Y and Z for 2 hours respectively
Cold –40±2℃ for 96h –20±2℃ for 96h
Environmental
performance
Dry heat 85±2℃ for 96h
Damp heat 40±2℃, 90 to 95%RH for 96h
Page 450 451 452
Note
F The operating temperature range for automotive applications can be raised upon request. Please contact us for
requirements of this kind.
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