44mm Dia x 90mm Length BL4490 Slotless BLDC Motor

Specifications

Series No: BL4490-          –               –  P    4
No.

Testing Item

Tested Values

Unit

1

Nominal voltage

UN

24

24

24

24

24

V

2

Terminal resistance, phase to phase

R

0.5

9.54

2.6

2.27

2.1

Ω

3

Output power

P2max

281.44

13.80

52.31

60.59

64.20

W

4

Efficiency

ηmax

80

63

69

72

67

%

5

No-load speed

no

5100

2460

3900

4100

4110

rpm

6

No-load current

Io

0.55

0.11

0.26

0.24

0.37

A

7

Stall torque

MH

2107.87

214.33

512.32

564.47

596.69

mNm

8

Friction torque

MF

24.43

9.80

14.85

13.11

19.96

mNm

9

Speed constant

kn

214.96

107.19

167.21

174.80

176.98

rpm/V

10

Back-EMF constant

kE

4.65

9.33

5.98

5.72

5.65

mV/rpm

11

Torque constant

kM

44.42

89.09

57.11

54.63

53.96

mNm /A

12

Current constant

kI

0.02

0.01

0.02

0.02

0.02

A/ mNm

13

Slope of n-M curve

Δ n/ ΔM

2.42

11.48

7.61

7.26

6.89

rpm/ mNm

14

Mechanical time constant

τ m

4.09

7.21

4.78

3.48

4.32

ms

15

Rotor inertia

J

161.34

59.96

59.96

45.73

59.96

gcm2

16

Angular acceleration

αmax

130.65

35.74

85.44

123.44

99.51

103rad/s2

17

Sensor

 

Hall Sensor

 

18

Driver

 

DR2404

 

19

Weight

 

560

g

20

Operating temperature range

 

-30 ~+85

21

Commutation

 

Electronically commutation

22

Ball Bearing

 

NMB & EZO

23

Housing material

 

Aluminum, black anodized

24

Magnet material

 

Sintered Nd-Fe-B

25

Direction of rotation

 

Electronically reversible

The Operating Data For η max of Customer’s Specifications

26

Output Power

P2opt

108.10

9.28

29.54

31.29

38.36

W

27

Efficiency

ηopt

80

63

69

72

67

%

28

Speed

nopt

4551

1934

3236

3475

3358

rpm

29

Load Current

Iopt

5.66

0.62

1.79

1.81

2.39

A

30

Operating Torque

Mopt

226.94

45.83

87.22

86.03

109.14

mNm

Performance Curves

Operating Curve

Performance Curves – NT Testing Curve

NT Curve

Outline Drawing – Motor Only

Outside Drawing(BL4490)

Photos

bl4490-24-2 4490 4490-1 BL4490-24-3

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