LONGER BELT LIFE

 

The balanced combination & superior bonding of premium belt components provide superior resistance to:

·      Shock load

·      High temperature

·      Heavy bending fatigue

Industrial Vee Belts

 

The exclusive design of the load-carrying polyester cords-involving a balanced twist, supplemented by a special treatment-give the balanced combination of strength, modulus, energy of rupture, adhesion, thermal and fatigue life, properties demanded by a wide range of applications.

 

Perfect Hi-Polymer

 

Compound-impregnated jacket

 

The jacket is an unbeatable combination perfected by Dunlop for optimum performance in all conditions.

 

The jacket fabric, woven to close specifications, assures adequate adhesion to the rubber compound with which it is processed.

 

Result-abrasion-resistance that excels in dusty, girtty conditions.

 

The unique Hi-polymer compound provides.

 

• Superior oil resistance
• Excellent heat resistance
• Improved wear resistance
• Electrical properties

 

Specialised rubber compounds

 

Backed by the Mitsuboshi experience, the base and cushion compounds are designed after extensive study of the failure patterns of vee belts prevalent in industry. The compounds are mixed to close specifications in microprocessor-controlled internal mixers for a precisely controlled cycle. Continuous quality control is applied to ensure that all the batches are with in set specification limits. The cushion compound retains the dynamic bond under all adverse ambient conditions.

 

The base rubber not only provides an engineered anisotropy to meet product design parameters, it is a cooler running compound as well, designed to avoid crack growth

 

VEE Belt Tensioning

 

Proper tensioning is a fundamental factor in the successful vee belt operation. Lack of tension will cause slippage and too much tension will cause excessive belt stretch as well as damage to the drive components such as bearing and shafts. Therefore to assure proper belt tension, following procedure is recommended.

 

• Measure the length of span in millimeters
• At the centre of the span apply a force with spring scale in a direction perpendicular to the span, until the belt is deflected from the normal by an amount equal to 0.015 mm for every millimeter of span length.
• Not the force and compare it with value given in table below.

 

Tensioning forces 

 

 

If the measured force is below the lower value, it indicates undertensioning, whilst a measured force above the higher value indicates overtensioning. However, when starting up a drive with new belts, the drive should be tensioned to the higher value since the tension falls rapidly in the early stages of running in.

 

Dunlop Dynamitz polyester cord vee belts are available in A,B,C,D,&E sections up to Size 418