What type of surface is the vehicles neoprene fan belts are made for supposed to drive in?
Neoprene Neoprene or polychloroprene is a family of synthetic rubbers that are produced by polymerization of chloroprene. Neoprene exhibits good chemical stability and maintains flexibility over a wide temperature range. Neoprene is sold either as solid rubber or in latex form, and is used in a wide variety of applications, such as laptop sleeves, orthopedic braces (wrist, knee, etc.), electrical insulation, liquid and sheet applied elastomeric membranes or flashings, and automotive fan belts.
Embedded servo Embedded servo or wedge servo is a type of servo configuration used on hard disks. Embedded servo systems embed the feedback signals for the read/write head positioner (usually a voice coil motor) inside gaps ("wedges") in the data tracks of the disk. This setup allows the entire set of platters to be used, instead of having to reserve one or two surfaces for the servo's use, which makes more space for data available on the drive. Embedded servo was originally developed in the 1970s, and started to appear on mass-market hard drives for personal computers in the late 1980s.