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Johnson 12 V

This motor is manufactured by Johnson Motor.  The motor's timing is advanced 14 in the counter-clockwise direction.  The body is 37 mm in diameter and 57 mm long. The shaft is 3.2 mm in diameter and 8.8 mm long. Weight is approximately 0.481 lbs.

 

Specifications for counter-clockwise rotation:

Motor only performance.

Typical system performance.

Voltage:

12 V

Angular-velocity constant:

1560 rpm/V

Torque constant:

0.868 ozfin/A

Armature resistance:

0.131 Ohms

No-load current:

1.1 A

Peak efficiency:

71.4 %

Power source resistance:

0 Ohms

0.131 Ohms

Peak power:

0.36 hp

0.176 hp

No-load angular velocity:

18500 rpm

18300 rpm

Stall current:

91.8 A

45.9 A

Stall torque:

78.7 ozfin

38.9 ozfin

Explanation of specifications.

 

Specifications for clockwise rotation:

Motor only performance.

Typical system performance.

Voltage:

12 V

Angular-velocity constant:

1470 rpm/V

Torque constant:

0.92 ozfin/A

Armature resistance:

0.131 Ohms

No-load current:

1.1 A

Peak efficiency:

79.3 %

Power source resistance:

0 Ohms

0.131 Ohms

Peak power:

0.36 hp

0.176 hp

No-load angular velocity:

17400 rpm

17200 rpm

Stall current:

91.8 A

45.9 A

Stall torque:

83.5 ozfin

41.2 ozfin

Explanation of specifications.

 

 

 

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Page last modified 06/05/07.