Neuma tattoo machines are guaranteed to perform effectively and efficiently when used properly, with the exception of motors and parts subjected to normal wear and tear (such as cams, bearings, RCA jacks, wiring, rubber o-rings, or any components not manufactured by Neuma), for a period of 3 years. Please be aware that this warranty is voided if any machine is disassembled by the user for any reason, or if any machine is dropped or otherwise mistreated or misused. It is important to use only needle cartridges with a membrane in order to keep ink or other fluids from getting into the electrical and/or mechanical components of the machines, as this can also void the warranty. Normal wear components such as cams, springs, bearings, and motors are not covered under warranty. These are available for purchase separately.