The C-300-S Series non-pivoting slide is the most popular and economical due to commercial applications in addition to being approved for military applications. Rigid quality controls during manufacture assure you of smooth sliding action and a minimum of deflection or play when the slides are in the extended position. Pencil thin design permits installation of standard 17" chassis in a standard 19" rack. The load capacity ranges from 80 to 95 lbs. Solid Bearing Slides are the most rugged and most cost effective slides for periodic maintenance applications. These dependable slides are your choice for mobile installations, harsh environments, or wherever shock and vibration is a factor. Solid Bearing slides are ideal for use in applications that require occasional cycling. These solid bearing slides have to pass a load bearing cycle tests of at least 2500 cycles depending on the model.