The spindle box is made of high toughness cast iron. After manual and natural double aging treatment, it is wear-resistant and not easily deformed. Model:ER20(60)-drilling waterproof. Rising Temperature:within 25 Degree Celsius. Spindle Material:20CrmnTi, carburizing heat treatment.1X ER20(60)-drilling waterproof. This item is in the category "Business & Industrial\Industrial Automation & Motion Controls\Electric Motors\General Purpose Motors". The seller is "2020lausitzonline" and is located in this country: US. This item can be shipped to United States.