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Self Adjustment for Linear Bearings Disclosure Number: IPCOM000050681D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10

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Survant, TG [+details]


A linear recirculating ball bearing, such as a Thompson Inc. (e.g., super-8 OPN) bearing, is often employed in s moving carriage in a type-writer or printer application to permit free movement of the carriage in an axial direction while eliminating any free play in a radial direction. This is achieved, in state of the art instances, by adjusting a split housing on the bearing with a screw. The proper adjustment of the bearing is obtained when a line to line condition is obtained. Screw adjustment, however, is difficult to obtain due to flexure and clearances in other parts of the carriage, such as the carriage 10 illustrated in the drawing. Moreover, line to line adjustment is many times affected by over-tightening of the bearing, inducing excessive drag and wear.