STR-SeriesHollow Output Rotary Actuators

Improving the Speed of Industry...

High output torque, high rigidity, highmoment loads

Zero backlash, with precision as tight as 20 arc-sec

Compatible with nearly any servo motor

Multiple ratios to match application requirementsMNEWNEW

New STR-Series

STR Specifications

STR Series

STR

Model

40

63

80

100

125

i

poT euqrot tuptuo detar cimanyDoitar raeG （N・m）

Average output rotation speed n mean（rpm）

15

20

20

20

20

57.6

10

129.2

202.4

560.3

938.8

51.1

15

114.6

179.1

496.3

831.1

46.8

20

105.1

164.4

455.3

762.5

43.8

25

98.2

153.6

425.7

713.1

41.4

30

93.0

145.4

403.1

675.1

39.7

35

88.9

139.0

384.9

644.7

38.0

40

85.2

133.6

369.8

619.3

36.7

45

82.4

128.8

356.9

597.9

35.6

50

79.8

124.9

345.9

579.3

STR

Model

40

63

80

100

125

i

Gear ratio

15

20

20

20

20

Upper limit torque at start/stop

Tu

N・m

65.1

159.2

249.0

690.0

1155.6

Permissible average input rotation speed

Nm max

rpm

1500

1500

1500

1500

1500

Permissible maximum input rotation speed

Nu max

rpm

3000

3000

3000

3000

3000

Input conversion moment of inertia

J

kg・m2× 10‐ 4

0.231

0.862

3.066

8.687

14.853

sec. Max.

± 45

± 30

± 20

± 20

± 20

μ m Max.

10

10

10

10

10

WeightSurface runoutAngular

transmissionaccuracy

kg

2.5

5.6

11.6

21.5

36.3

STR

Model

40

63

80

100

125

i

Gear ratioPermissible

axial load ［N］

Pa max

15

20

20

20

20

999

1657

3302

3724

8178

Permissibleradial load ［N］

Pr max

669

1359

2819

3109

7452

Permissiblemoment load ［N・m］

Mmean max

33

79

210

284

764

Offset amount［mm］

S

48

56

72.5

91.5

102.5

These are the permissible values when the axial, radial and moment loads are acting simultaneously.

* Please note that the 160 and 250 frames are of different design and materials of construction. Contact Nidec-Shimpo for dimensional data and drawings for these frame sizes.

* Please note that the 160 and 250 frames are of different design and materials of construction. Contact Nidec-Shimpo for dimensional data and drawings for these frame sizes.

This becomes Top* Please note that the 160 and 250 frames are of different design and materials of construction. Contact Nidec-Shimpo for dimensional data and drawings for these frame sizes.

× 0.8 with grease lubrication.

160 20 17170 7283 1216.3

250 20 2478.6 --

--

1116538051

*160 20 1888.0 1000 3000 46.988 ± 60 20 126

7.17060205*2 140.03400030001 ± 60 20 383

*160 20

*250 20

1533.5 1357.8 1245.6 1164.9 1103.0 1053.2 1011.7 976.6 946.1

4931.8 4366.9 4005.7 3746.4 3547.0 3386.7 3253.8 3140.7 3043.0

Permissible output shaft load

STR Actuator With Additional Gear Reduction

Inline Reducer Right Angle Reducer