SR Series

SR Series

Electric Linear Actuator

Industrial - Exlar

TThe SR Series is an Obsolete Product, No Longer Available. Need a comparable replacement, try our GSX Series actuators!

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Overview

 
Quick Data
Models:
 SR21, SR31, SR41
Frame Sizes:
 2.25, 3.3, 3.9 in (57, 84, 99 mm)
Screw Lead:
 0.1, 0.2, 0.4, 0.5, 0.75 in (2.54, 5.08, 10.16, 12.7, 19.05 mm)
Linear Speeds:
 up to 33.33 in/s (847 mm/s)
Continuous Thrust Capacity:
 up to 3,966  lbf (up to 17,642 N)
Standards/Ratings: 
 UL Class 180H insulation, IP54S 

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Product Specifications

 

SR21 Performance Specifications

SR21 SERIES PERFORMANCE SPECIFICATIONS

 

 

Model

Frame
Size
in (mm)

Stroke
in (mm)

Screw
Lead
in (mm)

Force Rating
1 Stack / 2 Stack
lb (N)

Max
Velocity
In/sec
mm (sec)

Approx*
Cont Motor
Torque
1 Stack / 2 Stack
lb-in (Nm)

Maximum
Static
Load
lb (N)

Armature
Inertia
Lb-in-s^2
(Kg-m^2)

Dynamic
Load
Rating
lb (N)

Weight
(approx)
lb (Kg)

SR21-0301

2.25
(57)

3
(76)

0.1
(2.54)

367/578
(1632/2571)

8.33
(211.67)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00101
(0.000116)

1567
(6970)

6.5
(2.9)

SR21-0302

2.25
(57)

3
(76)

0.2
(5.08)

183/289
(814/1286)

16.77
(423.33)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00101
(0.000116)

1219
(5422)

6.5
(2.9)

SR21-0304

2.25
(57)

3
(76)

0.4
(10.16)

92/145
(409/645)

33.33
(846.67)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00101(0.000116)

738
(3283)

6.5
(2.9)

SR21-0601

2.25
(57)

6
(152)

0.1
(2.54)

367/578
(1632/2571)

8.33
(211.67)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00114
(0.000131)

1567
(6970)

7.0
(3.2)

SR21-0602

2.25
(57)

6
(152)

0.2
(5.08)

183/289
(814/1286)

16.67
(423.33)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00114
(0.000131)

1219
(5422)

7.0
(3.2)

SR21-0604

2.25
(57)

6
(152)

0.4
(10.16)

92/145
(409/645)

33.33
(846.67)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00114
(0.000131)

738
(3283)

7.0
(3.2)

SR21-1201

2.25
(57)

12
(304)

0.1
(2.54)

367/578
(1632/2571)

8.33
(211.67)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00143
(0.000165)

1567
(6970)

8.0
(3.6)

SR21-1202

2.25
(57)

12
(304)

0.2
(5.08)

183/289
(814/1286)

16.67
(423.33)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00143
(0.000165)

1219
(5422)

8.0
(3.6)

SR21-1204

2.25
(57)

12
(304)

0.4
(10.16)

92/145
(409/645)

33.33
(846.67)

7.3/11.5
(0.82/1.30)

750
(3336)

0.00143
(0.000165)

738
(3283)

8.0
(3.6)

 


SR MECHANICAL / ELECTRICAL SPECIFICATIONS

 

SR21

 Nominal Backlash                     in   (mm)

0.004 (.10)

 Lead Accuracy           in/ft (mm/300 mm)

0.001 (.025)

 Maximum Radial Load                  lb  (N)

20 (90)

 Brake Holding Torque             lb-in (Nm)

19.4 (2.2)

 Environmental Rating: Standard/Optional

IP54

 

Motor Stator

118

138

168

218

238

268

Trapezoidal Commutation Data

Continuous Motor Torque 
Lbf-in       

7.3

7.0

6.7

11.4

11.0

10.8
(Nm)

(0.82)

(0.79)

(0.76)

(1.29)

(1.24)

(1.22)

Torque Constant (Kt)
Lbf-in/A  

1.9

4.1

7.4

1.9

4.1

7.9
(N-M/A)

(0.22)

(0.46)

(0.84)

(0.22)

(0.46)

(0.89)

Cont. Current Rating, Greased
A

4.2

1.9

1.0

6.6

3.0

1.5

Peak Current Rating
A

8.4

3.9

2.0

13.2

6.0

3.0

RMS Sinusoidal Commutation Data

Continuous Motor Torque
Lbf-in 

7.6

7.3

7.0

11.9

11.5

11.3
(Nm)

(0.86)

(0.83)

(0.79)

(1.35)

(1.30)

(1.28)

Torque Constant (Kt) 
Lbf-in/A 

2.5

5.2

9.5

2.5

5.2

10.2
(N-M/A)

(0.28)

(0.59)

(1.07)

(0.28)

(0.59)

(1.15)

Cont. Current Rating, Greased   
A

3.4

1.6

0.8

5.4

2.5

1.2

Peak Current Rating   
A

6.9

3.1

1.6

10.8

4.9

2.5

Motor Stator Data

Voltage Constant (Ke) 
Vrms / Krpm 

16.9

35.6

64.9

16.9

35.6

69.4
VPK / KRPM

23.9

50.3

91.8

23.9

50.3

98.1

Pole Configuration

8

8

8

8

8

8

Resistance
(L-L) Ohms

2.6

12.5

45.8

1.1

5.3

20.7

Inductance
(L-L)  mH

5.1

22.8

75.8

2.5

11.0

41.7

Brake Current @ 24 VDC   
A

.33

.33

.33

.33

.33

.33

Brake Engage/Disengage Time
ms

14/28

14/28

14/28

14/28

14/28

14/28

Mech. Time Constant (tm), ms        MIN   
 

6.0

6.5

7.1

2.5

2.7

2.8
MAX

8.5

9.2

10.1

3.6

3.9

4.0

Electrical Time Constant (te)   
ms

2.0

1.8

1.7

2.2

2.1

2.0

Damping Constant   
lbf-in/krpm 
 

0.55

0.55

0.55

0.55

0.55

0.55
(N-M/KRPM)

(0.06)

(0.06)

(0.06)

(0.06)

(0.06)

(0.06)

Friction Torque 
lbf-in 
 

1.00

1.00

1.00

1.00

1.00

1.00
(N-M)

(0.11)

(0.11)

(0.11)

(0.11)

(0.11)

(0.11)

Bus Voltage    Vrms

115

230

460

115

230

460

Speed @ Bus Voltage
RPM

3000

3000

3000

3000

3000

3000

Motor Wire Insulation

Class 180 H

Motor Stator Rating

Class 180 H

Thermal Switch, case temp.     °C

100

Std. Connectors (S Option):          Motor

MS-3112-E16-8P
Feedback

MS-3112-E16-23P

Printable view

SR31 Performance Specifications

SR31 SERIES PERFORMANCE SPECIFICATIONS

 

Model

Frame Size in (mm)

Stroke in (mm)

Screw Lead in (mm)

Force Rating 1 Stack / 2 Stack lb (N)

Max Velocity in/sec mm (sec)

Approx* Cont Motor Torque 1 Stack / 2 Stack lb-in (Nm)

Maximum Static Load lb (N)

Armature Inertia Lb-in-s^2 (Kg-m^2)

Dynamic
Load Rating lb (N)

Weight (approx) lb (Kg)

SR31-0301

3.3
(84)

3
(75)

0.1
(2.54)

829/1347
(3688/5992)

5
(127)

16.5/26.8
(1.86/3.03)

1620
(7206)

0.00319
(0.000414)

3310
(14724)

9.5
(94.3)

SR31-0302

3.3
(84)

3
(75)

0.2
(5.08)

415/674
(1846/2998)

10
(254)

16.5/26.8
(1.86/3.03)

1620
(7206)

0.00319
(0.000414)


(15880)

9.5
(94.3)

SR31-0305

3.3
(84)

3
(75)

0.5
(12.7)

166/269
(738/1197)

25
(635)

16.5/26.8
(1.86/3.03)

1620    
(7206)

0.00319 (0.000414)

3016
(13416)

9.5
(94.3)

SR31-0601

3.3
(84)

5.9
(150)

0.1
(2.54)

829/1347
(3688/5992)

5
(127)

16.5/26.8
(1.86/3.03)

1620    
(7206)

0.00361 (0.000416)

3310
(14724)

11.5
(5.2)

SR31-0602

3.3
(84)

5.9
(150)

0.2 
(5.08)

415/674
(1846/2998)

10
(254)

16.5/26.8
(1.86/3.03)

1620    
(7206)

0.00361 (0.000416)


(15880)

11.5
(5.2)

SR31-0605

3.3
(84)

5.9
(150)

0.5
(12.7)

166/269
(738/1197)

25
(635)

16.5/26.8
(1.86/3.03)

1620    
(7206)

0.00361 (0.000416)

3016
(13416)

11.5
(5.2)

SR31-1001

3.3
(84)

10
(254)

0.1
(2.54)

829/1347
(3688/5992)

5
(127)

16.5/26.8
(1.86/3.03)

1620    
(7206)

0.00416 (0.000479)

3310
(14724)

19
(8.6)

SR31-1002

3.3
(84)

10
(254)

0.2
(5.08)

415/674
(1846/2998)

10
(254)

16.5/26.8
(1.86/3.03)

1620    
(7206)

 

0.00416 (0.000479)


(15880)

19
(8.6)

SR31-1005

3.3
(84)

10
(254)

0.5

(12.7)

166/269
(738/1197)

25
(635)

16.5/26.8
(1.86/3.03)

1620    
(7206)

0.00416 (0.000479)

3016
(13416)

19
(8.6)

SR31-1201

3.3
(84)

12
(305)

0.1
(2.54)

829/1347
(3688/5992)

5
(127)

16.5/26.8
(1.86/3.03)

1620    
(7206)

0.00443 (0.000510)

3310
(14724)

22
(10)

SR31-1202

3.3
(84)

12
(305)

0.2
(5.08)

415/674
(1846/2998)

10
(254)

16.5/26.8
(1.86/3.03)

1620   
(7206)

0.00443 (0.000510)


(15880)

22
(10)

SR31-1205

3.3
(84)

12
(305)

0.5
(12.7)

166/269
(738/1197)

25
(635)

16.5/26.8
(1.86/3.03)

 
(7206)

0.00443
(0.000510)

3016
(13416)

22
(10)

 


SR SERIES MECHANICAL / ELECTRICAL SPECIFICATIONS

Nominal Backlash  

 in (mm)

0.004  (.10)

Lead Accuracy    

 in/ft (mm/300 mm)

0.001  (25)

Maximum Radial Load        

 lb (N)

15  (67)

Environmental Rating: Standard

IP54

 

 

SR31

SR41

MOTOR STATOR

118

138

168

218

238

268

118

138

168

218

238

268

Trapezoidal Commutation Motor Data

Continuous Motor Torque           Lbf-in

15.9

15.8

15.0

25.6

25.6

25.5

45.5

45.4

43.5

75.3

75.3

76.1
(Nm)

(1.79)

(1.78)

(1.70)

(2.89)

(2.89)

(2.88)

(5.14)

(5.13)

(4.91)

(8.51)

(8.51)

(8.60)

Torque Constant (Kt)              
Lbf-in/A

3.4

6.8

13.6

3.4

6.8

13.6

3.2

6.4

13.1

3.2

6.4

13.1
(N-m/A)

(0.39)

 (0.77)

(1.54)

(0.39)

(0.77)

(1.54)

(0.36)

(0.72)

(1.48)

(0.36)

(0.72)

(1.48)

Continuous Current Rating         Amps

5.2

2.6

1.2

8.4

4.2

2.1

15.9

7.9

3.7

26.3

13.1

6.5

Peak Current Rating                   Amps

10.4

5.2

2.5

16.8

8.4

4.2

31.7

15.8

7.4

52.5

26.3

13.0

RMS Sinusoidal Commutation Motor Data

Continuous Motor Torque           
Lbf-in

16.6

16.5

15.7

26.8

26.8

26.7

47.6

47.6

45.5

78.9

78.9

79.7
(Nm)

(1.88)

(1.87)

(1.78)

(3.03)

(3.03)

(3.01)

(5.38)

(5.37)

(5.14)

  (8.91)

(8.91)

(9.00)

Torque Constant (Kt)              
Lbf-in/A

4.4

8.7

17.5

4.4

8.7

17.5

4.1

8.2

16.8

4.1

8.2

16.8
N-m/A

(0.49)

(0.99)

(1.98)

(0.49)

(0.99)

(1.98)

(0.46)

 (0.93)

(1.90)

(0.46)

(0.93)

(1.90)

Continuous Current Rating         Amps

4.2

2.1

1.0

6.9

3.4

1.7

12.9

6.5

3.0

21.4

10.7

5.3

Peak Current Rating                   Amps

8.5

4.2

2.0

13.7

6.8

3.4

25.9

12.9

6.0

42.9

21.4

10.6

Motor Stator Data

Voltage Constant (Ke)    
Vrms / Krpm

29.9

59.7

119.5

29.9

59.7

119.5

28.1

56.1

114.8

28.1

56.1

114.8
Vpk / Krpm

42.2

84.5

168.9

42.2

84.5

168.9

39.7

79.4

162.4

39.7

79.4

162.4

Pole Configuration

8

8

8

8

8

8

8

8

8

8

8

8

Resistance (L-L)
Ohms

2.8

11.2

49.6

1.1

4.5

18.0

0.42

1.7

7.8

0.18

0.72

3.0

Inductance (L-L)
mH

7.7

30.7

123.0

3.7

14.7

5837

3.0

11.9

49.8

1.4

5.8

24.2

Mech. Time Constant (tm), ms
min

6.5

6.5

7.2

2.6

2.6

2.6

5.3

5.3

5.8

2.3

2.3

2.2
max

10.8

10.9

12.0

4.3

4.3

4. 4

7.7

7.7

8.4

3.3

3.3

3.2

Electrical Time Constant (te)  
ms

2.8

2.7

2.5

3.3

3.3

3.3

7.0

7.0

6.4

8.0

8.0

8.2

Damping Constant             
lbf-in/krpm

1.23

1.23

1.23

1.23

1.23

1.23

3.25

3.25

3.25

3.25

3.25

3.25
(N-m/Krpm)

(0.14)

(0.14)

(0.14)

(0.14)

(0.14)

(0.14)

(0.37)

(0.37)

(0.37)

(0.37)

(0.37)

(0.37)

Friction Torque 
lbf-in

2.00

2.00

2.00

2.00

2.00

2.00

4.50

4.50

4.50

4.50

4.50

4.50
(Nm)

(0.23)

(0.23)

(0.23)

(0.23)

(0.23)

(0.23)

(0.51)

(0.51)

(0.51)

(0.51)

(0.51)

(0.51)

Bus Voltage 
Vrms

115

230

460

115

230

460

115

230

460

115

230

460

Speed @ Bus Voltage
RPM

3000

3000

3000

3000

3000

3000

3000

3000

3000

3000

3000

3000

Thermal Switch, case temp. 
°C

100

100

100

100

100

100

100

100

100

100

100

100

Std. Connectors ("S" Option): Motor

MS-3112-E16-8P

MS-3102-E20-15P

Feedback

MS-3112-E16-23P

Motor Wire Insulation

Class 180 H

Motor Stator Rating

Class 180 H

Printable view

SR41 Performance Specifications

SR41 SERIES PERFORMANCE SPECIFICATIONS

 

Model

Frame Size in (mm)

Stroke in (mm)

Screw Lead in (mm)

Force Rating 1 Stack / 2 Stack lb (N)

Max Velocity in/sec mm (sec)

Approx* Cont Motor Torque 1 Stack / 2 Stack lb-in (Nm)

Maximum Static Load lb (N)

Armature Inertia lb-in-s^2 (Kg-m^2)

Dynamic
Load Rating lb (N)

Weight (approx) lb (Kg)

SR41-0601

3.9
(99)

6 (152)

0.1(2.54)

2393/3966 (10645/17642)

 5 (127)

47.6/78.9 (5.38/8.91)

3240 (14412)

0.0152 (0.001751)

4736 (21067)

20 (9.1)

SR41-0602

3.9
(99)

6 (152)

0.2 (5.08)

1196/1983 (5320/8821)

10 (254)

47.6/78.9 (5.38/8.91)

3240 (14412)

0.0152 (0.001751)

4890 (21751)

20 (9.1)

SR41-0605

3.9 (99)

6 (152)

0.5 (12.7)

479/793 (2131/3527)

25 (635)

47.6/78.9 (5.38/8.91)

3240 (14412)

0.0152 (0.001751)

4218 (18763)

20 (9.1)

SR41-0608

3.9 (99)

6 (152)

0.75 (19.05)

319/529 (1419/2353)

37.5 (953)

47.6/78.9 (5.38/8.91)

3240 (14412)

0.0152 (0.001751)

3328 (14804)

20 (9.1)

SR41-1201

3.9 (99)

12 (305)

0.1 (2.54)

2393/3966 (10645/17642)

5 (127)

47.6/78.9 (5.38/8.91)

3240 (14412)

0.0186 (0.002143)

4736 (21067)

32 (14.5)

SR41-1202

3.9 (99)

12 (305)

0.2 (5.08)

1196/1983 (5320/8821)

10 (254)

47.6/78.9 (5.38/8.91)

3240 (14412)

0.0186 (0.002143)

4890 (21751)

32 (14.5)

SR41-1205

3.9 (99)

12 (305)

0.5 (12.7)

479/793 (2131/3527)

25 (635)

47.6/78.9 (5.38/8.91)

3240 (14412)

0.0186 (0.002143)

4218 (18763)

32 (14.5)

SR41-1208

3.9 (99)

12 (305)

0.75 (19.05)

319/529 (1419/2353)

37.5 (953)

47.6/78.9 (5.38/8.91)

3240 (14412)

0.0186 (0.002143)

3328 (14804)

32 (14.5)

 


SR SERIES MECHANICAL / ELECTRICAL SPECIFICATIONS

Nominal Backlash    

 in (mm)

0.004  (.10)

Lead Accuracy     

 in/ft (mm/30 mm)

0.001  (25)

Maximum Radial Load    

 lb (N)

15  (67)

Environmental Rating: Standard

IP54

 

SR31

SR41

MOTOR STATOR

118

138

168

218

238

268

118

138

168

218

238

268

Trapezoidal Commutation Motor Data

Continuous Motor Torque
Lbf-in

15.9

15.8

15.0

25.6

25.6

25.5

45.5

45.4

43.5

75.3

75.3

76.1
(Nm)

(1.79)

(1.78)

(1.70)

(2.89)

(2.89)

(2.88)

(5.14)

(5.13)

(4.91)

(8.51)

(8.51)

(8.60)

Torque Constant (Kt)
Lbf-in/A

3.4

6.8

13.6

3.4

6.8

13.6

3.2

6.4

13.1

3.2

6.4

13.1
(N-m/A)

(0.39)

(0.77)

(1.54)

(0.39)

(0.77)

(1.54)

(0.36)

(0.72)

(1.48)

(0.36)

(0.72)

(1.48)

Continuous Current Rating 
Amps

5.2

2.6

1.2

8.4

4.2

2.1

15.9

7.9

3.7

26.3

13.1

6.5

Peak Current Rating
Amps

10.4

5.2

2.5

16.8

8.4

4.2

31.7

15.8

7.4

52.5

26.3

13.0

RMS Sinusoidal Commutation Motor Data

Continuous Motor Torque
Lbf-in

16.6

16.5

15.7

26.8

26.8

26.7

47.6

47.6

45.5

78.9

78.9

79.7
(Nm)

(1.88)

(1.87)

(1.78)

(3.03)

(3.03)

(3.01)

(5.38)

(5.37)

(5.14)

  (8.91)

(8.91)

(9.00)

Torque Constant (Kt) 
Lbf-in/A

4.4

8.7

17.5

4.4

8.7

17.5

4.1

8.2

16.8

4.1

8.2

16.8
N-m/A

(0.49)

(0.99)

(1.98)

(0.49)

(0.99)

(1.98)

(0.46)

 (0.93)

(1.90)

(0.46)

(0.93)

(1.90)

Continuous Current Rating
Amps

4.2

2.1

1.0

6.9

3.4

1.7

12.9

6.5

3.0

21.4

10.7

5.3

Peak Current Rating Amps

8.5

4.2

2.0

13.7

6.8

3.4

25.9

12.9

6.0

42.9

21.4

10.6

Motor Stator Data

Voltage Constant (Ke)
Vrms / Krpm

29.9

59.7

119.5

29.9

59.7

119.5

28.1

56.1

114.8

28.1

56.1

114.8
Vpk / Krpm

42.2

84.5

168.9

42.2

84.5

168.9

39.7

79.4

162.4

39.7

79.4

162.4

Pole Configuration

8

8

8

8

8

8

8

8

8

8

8

8

Resistance (L-L)
Ohms

2.8

11.2

49.6

1.1

4.5

18.0

0.42

1.7

7.8

0.18

0.72

3.0

Inductance (L-L)
mH

7.7

30.7

123.0

3.7

14.7

5837

3.0

11.9

49.8

1.4

5.8

24.2

Mech. Time Constant (tm), ms
min

6.5

6.5

7.2

2.6

2.6

2.6

5.3

5.3

5.8

2.3

2.3

2.2
max

10.8

10.9

12.0

4.3

4.3

4. 4

7.7

7.7

8.4

3.3

3.3

3.2

Electrical Time Constant (te)
ms

2.8

2.7

2.5

3.3

3.3

3.3

7.0

7.0

6.4

8.0

8.0

8.2

Damping Constant
lbf-in/krpm 
 

1.23

1.23

1.23

1.23

1.23

1.23

3.25

3.25

3.25

3.25

3.25

3.25
(N-M/Krpm

(0.14)

(0.14)

(0.14)

(0.14)

(0.14)

(0.14)

(0.37)

(0.37)

(0.37)

(0.37)

(0.37)

(0.37)

Friction Torque
LBF-IN

2.00

2.00

2.00

2.00

2.00

2.00

4.50

4.50

4.50

4.50

4.50

4.50
(Nm)

(0.23)

(0.23)

(0.23)

(0.23)

(0.23)

(0.23)

(0.51)

(0.51)

(0.51)

(0.51)

(0.51)

(0.51)

Bus Voltage
Vrms

115

230

460

115

230

460

115

230

460

115

230

460

Speed @ Bus Voltage
RPM

3000

3000

3000

3000

3000

3000

3000

3000

3000

3000

3000

3000

Thermal Switch, case temp. 
°C

100

100

100

100

100

100

100

100

100

100

100

100

Std. Connectors ("S" Option): Motor

MS-3112-E16-8P

MS-3102-E20-15P

Feedback

MS-3112-E16-23P

Motor Wire Insulation

Class 180 H

Motor Stator Rating

Class 180 H

Printable view

SR Series Resources

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