BRUSHLESS DC SERVO MOTOR

    

 

High Torque design, Low cost Package 

The EMB series DC brushless servo motor produce high continuous stall torque in a cost-reduced package. The increased torque of the EMB series motors is the result of additional magnetic poles on the rotor. Traditional motors in these frame sizes have four magnetic poles on the rotor, while the EMB Series motors have eight poles. The cost reduction of the BE series motors is achieved from their open-lamination design. Unlike traditional servomotors, the BE series motors do not have a metal housing. Instead, the laminations of the motor stator are shaped into the body of the motor. This design reduces both material costs and time required assembling the motor.

Features 

  • Size 17, 23, 34 and 42

  • 0.05 to 5N.m continuous torque

  • DC Brushless construction

  • High torque density packaging

  • High performance neodymium magnets

  • Thermo-switch protection

  • Connector choices

Part Numbering System

   57 EMB 3 S 26 N -A
42-NEMA17

EMB series  

 three phase   s-single shaft out
 or
d-double shaft out		 45  60  75 n-normal
f-flay
k-keyway		 A, B, C Series
57-NEMA23          51  72   93    
86-NEMA34         71  98 125    
110-NEMA42       113  173    

                    

Size 17 BLDC Motor Specification - 42EMB Series

 

 

 

-A

-B

-C

-A

-B

-C

-A

-B

-C

Rated voltage

U

V

+24

+36

+48

+24

+36

+48

+24

+36

+48

Stall torque continuous

Tcs

N.m

0.07

0.08

0.09

0.14

0.15

0.15

0.25

0.26

0.27

 

 

Oz-in

10

11.4

12.8

20

21.4

21.4

35.6

37

38.5

Stall current continuous

Isc

A

3.5

2.4

1.7

1.9

4.6

3.5

11

6.9

5.1

Peak torque

Tp

N.m

0.13

0.14

0.15

0.27

0.28

0.29

0.54

0.55

0.57

 

 

Oz-in

18.5

20

21.4

38.5

39.9

41.3

77.1

78.5

81.4

Peak current

IP

A

2.5

1.6

1.25

5

3.1

2.4

7.8

5

3.6

Rated speed

nN

rpm

3000

Current @rated speed

IN

A

0.82

0.54

0.4

1.7

1.07

0.8

2.55

1.62

1.19

Torque @rated speed

TN

N.m

0.05

0.05

0.05

0.1

0.1

0.1

0.16

0.16

0.16

 

 

Oz-in

7.14

7.14

7.14

14.25

14.25

14.25

22.8

22.8

22.8

Shaft power @rated speed

Pout

W

15.7

15.7

15.7

31

31

31

50

50

50

Voltage constant

KE

V/ Krpm

6.3

9.4

12.7

6.25

9.3

12.6

6.1

9.2

12.4

Torque constant

KT

N.m/A

0.065

0.1

0.135

0.075

0.103

0.154

0.108

0.097

0.136

Resistance

R

ohms

1.2

2.2

3.5

0.63

1.3

2.4

0.43

0.86

1.63

Inductance

L

mH

0.6

1.3

2.5

0.75

1.62

3.5

0.38

0.82

2.3

Static friction

Tt

Oz-in

0.5

0.5

0.5

0.65

0.65

0.65

0.8

0.8

0.8

 

 

N.m

3.5E-03

4.55E-03

5.6E-03

Motor thermal time const.

τth

Seconds

8.3

8.3

8.3

10

10

10

12

12

12

Electrical time constant

τelec

Seconds

0.5

0.6

0.71

1.2

1.25

1.46