Rawlings Pro Line Two Wheel Owner's Manual page 12

All components of your machine are covered for non-commercial use for
five years from the date of purchase, but wheels are wear items which
are prorated just like car tires. For example, if a wheel only lasts 3 years,
you will receive 40% off the price of a new one. The warranty does not
cover cosmetic issues, normal wear, or misuse of the product. For
commercial use, the warranty period is one year.
Rawlings Pitching Machines
Rawlings Pitching Machines