Specifications

Series No: BL2220 –          –               –  P    2
No.

Testing Item

Tested Values

Unit

1

Nominal voltage

UN

6

12

24

 

 

V

2

Terminal resistance, phase to phase

R

3.1

31

20.5

 

 

Ω

3

Output power

P2max

2.15

0.73

5.24

 

 

W

4

Efficiency

ηmax

39

30

40

 

 

%

5

No-load speed

no

14850

6890

22130

 

 

rpm

6

No-load current

Io

0.27

0.08

0.16

 

 

A

7

Stall torque

MH

5.53

4.05

9.04

 

 

mNm

8

Friction torque

MF

0.90

1.06

1.43

 

 

mNm

9

Speed constant

kn

2876.23

723.74

1068.05

 

 

rpm/V

10

Back-EMF constant

kE

0.35

1.38

0.94

 

 

mV/rpm

11

Torque constant

kM

3.32

13.19

8.94

 

 

mNm/A

12

Current constant

kI

0.30

0.08

0.11

 

 

A/mNm

13

Slope of n-M curve

Δ n/ ΔM

2685.59

1700.41

2448.87

 

 

rpm/mNm

14

Mechanical time constant

τ m

34.59

21.90

31.54

 

 

ms

15

Rotor inertia

J

1.23

1.23

1.23

 

 

gcm2

16

Angular acceleration

αmax

44.96

32.94

73.47

 

 

103rad/s2

17

Sensor

 

Hall sensor

 

18

Driver

 

DR2404

 

19

Weight

 

40

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

2.07

0.73

5.01

 

 

W

27

Efficiency

ηopt

39

30

40

 

 

%

28

Speed

nopt

8871

3373

13325

 

 

rpm

29

Load Current

Iopt

0.94

0.24

0.56

 

 

A

30

Operating Torque

Mopt

2.23

2.07

3.60

 

 

mNm

Performance Curves

Operating Curve

Performance Curves – NT Testing Curve

NT Curve

Outline Drawing – Motor Only

Outside Drawing(BL2220)

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