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Asymmetric Pulleys
  
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A Series
Adjustable Center Distance Pulleys

 

 

Click here to go to
Fixed Center Distance Pulleys

Automatic Torque Controlled Belt Tensioning

     

     

    The cam and cam follower mechanism adjusts belt tension to the load requirement and stabilizes the pitch diameter setting regardless of load fluctuations. The peripheral support of the cam followers also reduce wear on the sliding face bearing surface.

Lubrication-Free
    The combination of a surface treated pulley shaft and steel-backed non metallic bushings eliminate the necessity of lubrication and prevent fretting corrosion.
Dimensions

HP at 1750 RPM HP at 1150 RPM Torque Capacity lb.-in. Model Number Max P.D. Min P.D. Ratio Change Belt Size A B C D E F Collet Size Shaft Travel
5 3 180 A96 9.30 3.10 3:1 23A 9.69 6.56 1.82 3.88 4.38 7.13 512 4.3
10 7.5 360 A112 10.8 3.60 3:1 26A 11.25 7.25 2.32 4.75 4.38 7.13 512 5.0
20 15 720 A112-33 10.7 4.30 2.5:1 33A 11.25 7.44 2.27 4.75 4.38 7.13 7713 4.6
30 20 1080 A130-33 12.4 5.40 2.5:1 33A 13.0 7.44 2.52 5.19 4.38 7.13 7713 4.9

 

MA Series
Fixed Center Drives

 

 

 

Compact

Asymmetric drives require a minimum of space in a C-Flow configuration relative to their horsepower capacity.

Reduced Overhung Load

    The nearly perpendicular angle of the fixed pulley faced profile locates the point of bending moment close to mounting shaft bearings and still allows belt alignment to be maintained throughout the drive's speed range.

Superior Belt Capacity

    The asymmetrically designed belt has uniformly tensioned tensile members and superior lateral stability under high load conditions. The result is greater horsepower capacity per belt width than symmetric belts.

Torque Sensing Design

    Belt tension is adjusted to the load requirements. Bushing wear is reduced because of the peripheral support of the cam followers and there are no torque carrying keys.

Permanent Lubrication

    Steel backed teflon impregnated bushings in the sliding pulley face in conjunction with surface treated pulley shafts provide lifetime lubrication.

 
 

Horsepower Curves

 

 

 
 

 

 

 


Please note: Figures in this document should not be used for engineering purposes. They are for reference only. To obtain exact specifications, click on the catalog icon to order catalog HL386.

Produced by Triangle Park Creative, Minneapolis, MN