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Plot No. 3702, GIDC, Vatva

Ahmedabad - 382 445, Gujarat, India

   

 

MOTOR POSITIONS
 
Belt Driven Centrifugal Fans
   

Positions W & Z are the most compact if motor will fit close to fan. With the current trend to fans on unitary bases (Arrgt. 9H), this is more common than ever. Positions X & Y will typically take more space.

 

The first sketch on the left shows the motor close to the fan shaft but it may be more practical to move it out so that a standard adjustable motor slide base will give a greater adjustment range for belt tension. Longer belt centers also result in higher horse power.
 
Arrangement 9 Motor Base Positions
   
A/9R - Arrangement 9 with motor on right side of the bearing pedestal.
A/9L - Arrangement 9 with motor on left side of the bearing pedestal.
A/9T - Arrangement 9 with motor on top of the fan housing.
A/9SL - Arrangement 9 with motor on left side of fan housing.
A/9SR - Arrangement 9 with motor on right side of fan housing.

Note: RIGHT and LEFT are viewed from the drive side.
 
Axial and Inline Centrifugal
 

A/1L - Arrangement 1 with motor on left.
A/1R - Arrangement 1 with motor on right.
   

Although appropriate for Axial Fans, designations are AMCA standard 99-2410-82 for Inline Centrifugal Fans. Alternate designations are o'clock positions.
 
45 = 1:30 225 = 7:30
90 = 3:00 270 = 9:00
135 = 4:30 315 = 10:30
180 = 6:00 360 = 12:00