Specialized testing equipment category for quantitatively evaluating wear characteristics of materials and components. Includes abrasive wear testers, pin-on-disk wear testers, reciprocating wear testers, and rotational wear testers to measure wear resistance of metallic materials, resin materials, and coating materials. Enables wear measurement compliant with standards such as JIS H 5401 and ASTM G99 for quality control of automotive parts, mechanical components, and tool materials, as well as new material development. Essential equipment group for surface treatment effect verification, lubricant evaluation, and product life prediction, distinguished from hardness testers and surface roughness measuring instruments by different measurement principles and capability to reproduce dynamic wear phenomena.