1. Hamrock, Jacobson and Schmid©1998 McGraw-Hill Selection of V-Belts Belt Cross Sections: A B

2. Hamrock, Jacobson and Schmid©1998 McGraw-Hill Selection Guide Types 3L, 4L, 5L: Ideal for low horsepower (<3 hp) applications. Excellent for fans. Types A, B, C, D: Transmits more horsepower at a longer life than3L, 4L, and 5L belts. Suitable for clutching applications. Types AX, BX, CX: Notches provide for more aggressive gripping. For industrial applications of high horsepower. Types 3VX, 5VX, and 8V: Smaller wedge angle allows for larger horsepower transfer than with other belts; intended for high horsepower applications.

3. Hamrock, Jacobson and Schmid©1998 McGraw-Hill Belt Length Formula + + L Approx. Belt Length = 1.57(D1+D2) + 2L D1D1 D2D2

4. Hamrock, Jacobson and Schmid©1998 McGraw-Hill Sample Ratings : FHP (Fractional Horsepower) V-belts Note: Horsepower ratings are not corrected for arc of contact, ratio, belt length or service factor.

5. Hamrock, Jacobson and Schmid©1998 McGraw-Hill Sample Ratings: Medium Duty Belts Note: Horsepower ratings are not corrected for arc of contact, ratio, belt length or service factor.

6. Hamrock, Jacobson and Schmid©1998 McGraw-Hill Sample Ratings: Medium Duty Notched Belts Note: Horsepower ratings are not corrected for arc of contact, ratio, belt length or service factor.

7. Hamrock, Jacobson and Schmid©1998 McGraw-Hill Sample Ratings: Heavy Duty Belts Note: Horsepower ratings are not corrected for arc of contact, ratio, belt length or service factor.