POWERGRIP® GT®3
199Pages

DRIVE DESIGN MANUAL

Table of Contents Description * Taper-Lock is a trademark of Reliance Electric * QD is a trademark of Emerson Electric Copyright 2014 Gates Corporation Denver, Colorado 80217 Printed in U.S. of Ameri

Safety Policy WARNING! Be Safe! Gates belt drive systems are very reliable when used safely and within Gates application recommendations. However, there are specific USES THAT MUST BE AVOIDED due to the risk of serious injury or death. These prohibited misuses include: Primary In-Flight Aircraft Systems Do not use Gates belts, pulleys or sprockets on aircraft, propeller or rotor drive systems or in-flight accessory drives. Gates belt drive systems are not intended for aircraft use. Lift Systems Do not use Gates belts, pulleys or sprockets in applications that depend solely upon the belt to...

PowerGrip® GT®3 Belt Drives Belt Construction PowerGrip® GT®3 drives provide positive, trouble-free power transmission and offer many advantages over conventional chain, gear and other belt drives. Advantages: n Higher capacity n Improved registration n Reduced noise n No lubrication required n No stretching due to wear n Corrosion resistance n Excellent abrasion resistance n Clean operation n Long trouble-free service Construction Features The tooth design substantially improves stress distribution and allows extra high loading. The molded teeth enter and leave the sprocket grooves...

PowerGrip® Belt Drive Selection Procedure Example Selection of a stock PowerGrip® Belt Drive System involves these five steps: 1. Calculate design horsepower. 2. Select belt pitch 3. Select sprockets and belt. 4. Select belt width. 5. Determine bushing and bore requirements. rpm of faster shaft 1160 = 2.0 = rpm of slower shaft 580 b. Select sprocket combination and belt length. Turn to the Stock Drive Selection Tables (pages 12 through 45, 54 through 57 and 64 through 103) and in the proper pitch tables find the chosen speed ratio. Sample Problem A gear pump is to be driven by a 40 hp...

PowerGrip® Belt Drive Selection Procedure Procedure And, repeating the procedure for the 14mm pitch belt horsepower tables on pages 51 through 53, we find the 55mm (2.16-inch) width belt has an 84.9 base horsepower rating for a 36-groove sprocket. This, multiplied by the length factor of 1.0, gives a corrected horsepower rating of 84.9 which also exceeds the design horsepower. c. Check belt speed. Do not exceed 6500 fpm with stock sprockets. Belt Speed is determined using the following formula: (fpm) = PD (inches) x Speed (rpm) V 3.82 Example Determining belt speed for each of the drive...

High Speed Drive Survey and Energy Savings Worksheet Customer Information Company: Distributor: Address: Phone: Fax: E-mail: Drive Information Energy Savings Information

Gates Design IQ® Data Worksheet Customer Information Company: Distributor: Address: Phone: Fax: E-mail: Application Summary General Description: Product Type: Production Volume: Design Parameters DriveR: Motor Type & Description: (Servo, Stepper, DC, AC, etc.) Reversing: (Y/N) Nominal Motor Torque / Power Output: rpm: Max / Peak Motor Torque/Power Output: rpm: Motor Stall Torque (If applicable): Driver Rotation: (CW / CCW / Rev) DriveN’s / Idlers: (Specify appropriate units for each field; in, mm / hp, kw / lb-ft, lb-in, N-m, etc.) Pulley Sprocket Inside/ Load Conditions Shaft Description X...

PowerGrip® Belt Drives Minimum Recommended Sprocket Outside Diameters for General Purpose Electric Motors—Synchronous Belts Motor RPM (60 Cycle and 50 Cycle Electric Motors) Motor 575 690 870 1160 1750 Horsepower 485* 575* 725* 950* 1425* * These RPM are for 50 cycle electric motors. # Use 8.6 for Frame Number 444 T only. Data in the white area are from NEMA Standard MG-1-14-42, June, 1972, while data in the light blue area are from MG-1-14-43, January, 1968. The dark blue area is a composite of electric motor manufacturers data. They are generally conservative, and specific motors and...

PowerGrip® GT®3 and HTD® Belt Drives Gates 5mm, 8mm and 14mm pitch GT®3 and 20mm pitch HTD® belts have helically-wound fiberglass tension members embedded in a Neoprene®* body with the belt teeth faced with a tough wear-resistant nylon fabric. The three principal dimensions of a belt are Pitch Pitch Length Belt pitch is the distance in millimeters between two adjacent tooth centers as measured on the pitch line of the belt. Belt pitch length is the total length (circumference) in millimeters as measured along the pitch line. The theoretical pitch line of a PowerGrip® belt lies within the...

PowerGrip® GT®3 and HTD® Belt Drives The following tables list the stock PowerGrip® belts and their dimensions. 5mm Pitch PowerGrip® GT®3 Stock Belt Lengths 8MGT Stock Belt Widths 14mm Pitch PowerGrip® GT®3 Stock Belt Lengths 5MGT Stock Belt Widths Belt Width Code 09 15 25 14MGT Stock Belt Widths Belt Width Code 40 55 85 115 170 20M Stock Belt Widths Belt Width Code 115 170 230 290 340

Basic PowerGrip® Service Factors DriveN Machine DriveR AC Motors: Normal Torque, Squirrel Cage, Synchronous, Split Phase, Inverter Controlled The driveN machines listed below are representative samples only. Select a driveN machine whose load characteristics most closely approximate those of the machine being considered. AC Motors: High Torque, High Slip, Repulsion-Induction, Single Phase, Series Wound, Slip Ring DC Motors: Shunt Wound Stepper Motors DC Motors: Series Wound, Compound Wound Servo Motors Engines: Multiple Cylinder Internal Combustion Engines: Single Cylinder Internal...

5mm Pitch PowerGrip® GT®3 Belts enter Distance, Inches C 425-5MGT P.L. 16.732 85 Teeth Sprocket Combinations DriveR DriveN 300-5MGT P.L. 11.811 60 Teeth Drive Selection Table

5mm Pitch PowerGrip® GT®3 Belts Drive Selection Table 2100-5MGT P.L. 82.677 420 Teeth

5mm Pitch PowerGrip® GT®3 Belts Center Distance, Inches 425-5MGT P.L. 16.732 85 Teeth Sprocket Combinations DriveR DriveN 300-5MGT P.L. 11.811 60 Teeth Drive Selection Table