Coupling and Adapter End Style Nomenclature

New Light Power & Precision Drive Design Manual

We are excited about the release of the newly updated Light Power & Precision Drive Design Manual dated January 2015.  This badly needed update includes drive selection data for newly released PowerGrip GT3 belts.  In addition, pulley dimensional tables and long length belting ratings were updated along with numerous additional items. 

The Light Power & Precision Drive Design Manual has always been focused on OEM designers needing detailed technical information about small pitch synchronous and Polyflex JB / Micro-V belt drive systems.  This manual contains extensive technical information useful for designing small belt drive systems including belt and sprocket/pulley dimensions and tolerances.  Many useful calculations are included for static belt tension, belt span tensions, center distance, teeth in mesh, arc of contact and much more.

Download a copy of this new manual from http://www.gates.com/drivedesign.  For additional information, contact Product Application Engineering at ptpasupport@gates.com or at 303-744-5800.

STAMPED - P for Pressure

An effective way to remember this hose selection criterion is to remember the word STAMPED.

S T A M P E D

S = Size
T = Temperature
A = Application
M = Material to be Conveyed
P = Pressure
E = Ends or couplings
D = Delivery (volume)

 P Pressure

It’s essential in the hose selection process to know the system pressure, including pressure spikes. Published working pressures must be equal to or greater than the system pressure. Pressure spikes greater than the published working pressure must be taken into consideration because they will shorten hose life. Applications having pressure spikes greater than published working pressures of the hose, Gates DOES NOT recommend using hose. Burst pressures are reference pressures intended for destructive testing purposes and design safety factors only. Typically, for dynamic hydraulic applications, the minimum burst pressure rating is four times that of the maximum working pressure rating.

Temperature Effect on Belt Storage

To ensure belts maintain full performance capability, six years is the maximum recommended storage time.

To achieve full storage life, belts should be stored at temperatures below 85°F.  For every 15°F increase above 85°F, the recommended storage time is reduced by half.  It is not recommended to store belts at temperatures above 115°F.

For additional storage recommendations, refer to the Belt Drive Preventive Maintenance & Safety Manual: BeltPMManual.pdf

Gates Lift Systems Safety Policy

Do not use Gates belts, pulleys or sprockets in applications that depend solely upon the belt to raise/lower, support or sustain a mass without an independent safety backup system.  For applications requiring special "Lift" or "Proof" type chains with minimum tensile strength or certified/test tensile strength requirements, be advised that because Gates belts have different drive design procedures from metal chains, the tensile strength of a belt when compared to the tensile strength of a chain should only be part of the design process.  Diligent analysis with the customer's participation should be used when considering any such application.

For any additional questions feel free to look through our other blog topics or contact us at ptpasupport@gates.com or 303-744-5800.