CTI Electronics presents T6XXX series 1.3" (33mm) OEM industrial trackball. They are a sub-assembly version of the highly dependable panel mount trackball with 2.0 inch diameter. They have been designed for integration into OEM equipment. The robust trackballs have a Delrin housing and a formed Teflon sealing ring. They have a 0.290" mounting collar made of machined, anodized aluminum.