Timing Belt, V-Belt and Flat Belt Design and Engineering Formulas - Engineers Edge

The following are to links of mechanical V-Belt Applications and Design and other useful data.

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• Electric Motor Shaft Load Due to Belt Loading Equations and Calculator
• Flat Belt Design Equations
• Flat Belt Drive Design Calculator and Equations
• Power Transmission by Leather Belting
• V-Belt Angle Between Two Sheave
• V-Belts Design Requirements Equations and Calculator
• V Belt Conventional Sizes
• V Belt Application
• V Belt Pulley Groove (Sheave) Sizes
• V-Belt Classical Speed to Horsepower Ratings Formulas and Calculator for Cross Sections
• V Belt Rated Horsepower Equations
• Classical V-Belt Standard Datum Length for design per. ANSI/RMA IP-20
• Belt Tensions, Torques and Power
• Standard, Sizes and Sheave Diameters
• Toothed Pulley Center Distance Calculator
• Tension Relation of V Belt
• Service Factors
• Design Horsepower Vs Service Factor
• Torque Transmitted by Belt Equation 
• Rated Power of a Belt
• Tension Relation of Flat Belt
• Flat Belt Length and Pulley Center Distance Calculation
• Large and Small Diameter Lifting Pulley / Drum Equation and Calculator
• Two Lifting Lifting Pulley's Mechanical Advantage
• Multiple Pulley's Lifting Mechanical Advantage
• Pulley Differential Mechanical Advantage Equations
• Simple Hoist Pulley Equations
• Two Pulley Connecting Belt Design and Calculations
• Length of Belt Traversing Three Pulleys
• Service Factors for Synchronous Timing Belts per. ANSI RMA IP-24
• Standard Synchronous Timing Belt Pitches Imperial Units per. ANSI RMA IP-24
• Synchronous Timing Belt Pulley Mechanical Tolerances per. ANSI RMA IP-24
• Synchronous Timing Belt Standard Widths and Tolerances per. ANSI RMA IP-24
• Synchronous Timing Belt Pulley and Flange Dimensions Table per ANSI / RMA IP-24
• Synchronous Timing Belt Tooth Section Dimensions Table per ANSI / RMA IP-24
• Synchronous Timing Belt Standard Pitch Lengths and Tolerances per. ANSI RMA IP-24 Table
• Synchronous Timing Belt Torque Rating Equation and Calculator per. ANSI RMA IP-24 for small pitch MXL section belts
• Synchronous Timing Belt Horsepower Rating Equation and Calculator per. ANSI RMA IP-24
• Roller Chain Drive Design Calculator and Equations

V belts (also style V-belts, vee belts, or, less commonly, wedge rope) solved the slippage and alignment problem. It is now the basic belt for power transmission. They provide the best combination of traction, speed of movement, load of the bearings, and long service life. They are generally endless, and their general cross-section shape is trapezoidal (hence the name "V"). The "V" shape of the belt tracks in a mating groove in the pulley (or sheave), with the result that the belt cannot slip off. The belt also tends to wedge into the groove as the load increases—the greater the load, the greater the wedging action—improving torque transmission and making the V-belt an effective solution, needing less width and tension than flat belts. V-belts trump flat belts with their small center distances and high reduction ratios. The preferred center distance is larger than the largest pulley diameter, but less than three times the sum of both pulleys. Optimal speed range is 1,000–7,000 ft/min (300–2,130 m/min). V-belts need larger pulleys for their thicker cross-section than flat belts.

For high-power requirements, two or more V-belts can be joined side-by-side in an arrangement called a multi-V, running on matching multi-groove sheaves. This is known as a multiple-V-belt drive (or sometimes a "classical V-belt drive").

V-belts may be homogeneously rubber or polymer throughout, or there may be fibers embedded in the rubber or polymer for strength and reinforcement. The fibers may be of textile materials such as cotton, polyamide (such as Nylon ) or polyester or, for greatest strength, of steel or aramid (such as Twaron or Kevlar ).