V-Belts - Houston Bearing and Supply

V-Belt Troubleshooting GuideCarlisle has listed some of the more common symptoms of short V-Belt life in the chart below. This chart isintended to help you identify the cause of short belt life so you can address the problem and correct it. For moreinformation on proper V-Belt maintenance, request Carlisle publication 102163 (Service Manual for Industrial V-Belt Drives) from your local Carlisle distributor.SYMPTOMSRapid Sidewall Wear • • * • • • • • • • •Worn Cover On Back *Belt Turns Over Or Jumps Off Pulley • • • * •Belt Soft, Swollen* •Belt Slips, Squeals (Spin Burn) * * • • •Belt Cover Split • •Underside Cracked • • *Tie-Band Damaged • • * *Repeated Breakage • • • •Belts Ride Too High * •Belts Bottoming * • •Repeated Take-Up Necessary • • •Belts Vibrate Excessively OrAppear MismatchedCAUSES• • • • • *Bearings Are Hot • • • * •Shafts Whip Or Bend • • • *Cracked Bushings • *Pulley Wobble • • ** Indicates Most Common Causes.• Indicates Other Possible Causes.Belts Pried On Or Misplaced SlackBelts Rubbing GuardPulleys MisalignedWorn or Damaged PulleysPulleys Too Far From BearingPoor Bearing Or Shaft ConditionInsufficient TensionExcessive TensionImproper Pulley InstallationBelts Worn (Normal Service Life)Wrong Belt Cross-Section Or TypeMismatched Belts Or Mixed BrandsMachine-Induced Impulse Or ShockImproper Or Prolonged StorageExcessive HeatExcessive Oil Or GreaseUse of Belt DressingAbrasive EnvironmentForeign Objects In GroovesExcessive MoistureOverloaded Drive-UnderbeltingDrive Seriously OverbeltedPulley Too SmallInsufficient Wrap On Small PulleyBackside Idler• •**•• •• •* *•154