Type

SK 5

SK 6

SK 12

Number of sliprings

mΩ

5

6

12

Resistance between sliprings and brush

<40

<40

<40

Fluctuation of the resistance

mΩ

<2

<2

<2

Thermo-electric voltage measured between two brushes

when the sliprings are short-circuited (after running warm)

µV

<10

<10

<10

Voltage limit

V

60

60

60

Current limit

A

2

2

2

Permitted speed for continuous duty

min–1

4000/6000 1)

6000

6000

Permissible vibration,

Test severity to DIN 40046, Part 8

Frequency range

Hz

10...55

5...65

5...65

Duration

h

1.5

0.5

0.5

Acceleration

m/s2

50

150

150

Mechanical schocktest 2)

Test severity to DIN 40046, Part 26

Number of schocks

1000

1000

1000

Duration

ms

3

3

3

Acceleration

m/s2

150

200

200

Moment of mass inertia, Ix (axial)

gm2

0.082

0.087

Nominal temperature range 3)

°C

–10...+60

–10...+60

–10...+60

Service temperature range 4)

°C

–10...+90

–10...+70

–10...+70

Storage temperature range

°C

–50...+90

–50...+90

–50...+90

Weight

kg

see above

approx. 0.55

approx. 0.65