High Speed Brushless DC Motor BL2250-24-260-P2

No.

Testing Item

Tested Values

Unit

1

Nominal voltage

UN

24

V

2

Terminal resistance, phase to phase

R

0.55

Ω

3

Output power

P2max

259.18

W

4

Efficiency

ηmax

86

%

5

No-load speed

no

44000

rpm

6

No-load current

Io

0.22

A

7

Stall torque

MH

225.00

mNm

8

Friction torque

MF

1.14

mNm

9

Speed constant

kn

1842.62

rpm/V

10

Back-EMF constant

kE

0.54

mV/rpm

11

Torque constant

kM

5.18

mNm/A

12

Current constant

kI

0.19

A/mNm

13

Slope of n-M curve

n/M

195.55

rpm/mNm

14

Mechanical time constant

τm

4.05

ms

15

Rotor inertia

J

1.98

gcm2

16

Angular acceleration

αmax

1136.38

103rad/s2

17

Operating temperature range

-30+85

18

Commutation

Electronically commutation

19

Ball bearing

NMB

20

Shaft load max

- radial at 3,000/20,000rpm(7 mm from bearing)

45.5/24

N

-axial at 3,000/20,000rpm(axial push-on only)

36/24

N

-axial at standstill (axial push-on only)

60

N

21

shaft play

-radial

≤

0.015

-axial(spring)

≤

0.2

22

Magnet material

Sintered Nd-Fe-B

23

Housing material

Aluminum, black anodized

24

Weight

g

25

Direction of rotation

Electronically reversible

Operating Data Forηmax of Customer's Specifications

26

Output Power

P2opt

68.51

W

27

Efficiency

ηopt

86

%

28

Speed

nopt

40868

rpm

29

Load Current

Iopt

3.31

A

30

Operating Torque

Mopt

16.02

mNm