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The decision to use a v-guide on a belt is a decision that needs to be understood so a good choice can be made. V-Guides in general will not solve all problems that are associated with belt mistrack. In general it is best to use a non v-guided belt in most applications when one considers cost, durability, and performance.

V-Guide Limitations

V-guided belts include single or multiple profiles on the underside of the belt to aid in the piloting of the belt. Belt manufacturers never recommend the v-guide be the primary source for piloting a belt. The v-guide should be used for temporarily restraining the belt during operation from intermittent side loads on the belt that will create a situation where the belt will mistrack.

With the understanding of the use of v-guides, it can be understood that a v-guided conveyor design when compared to a crowned pulley design should expect to exhibit:

• Lower belt life due to abrasion.
• Greater difficulties in tracking due to flat pulleys.
• Increased side to side belt movement due to the clearance required for the v-guide.
• The possibility of the belt being lifted off the frame due to external forces successfully pushing the v-guide out of it track and up on to the frame.
• Lower capability in terms of belt speed due to the abrasion of the v-guide.

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Don't forget to submit your entry to our Best Use of a Conveyor Contest by August 31st. You could win an LCD flat-panel TV or a portable DVD player. Everyone who submits an entry will receive a Blockbuster Gift Card and coffee mug.

Visit the website for more details and official rules.

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