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A linear slide bearing for use in, for example, machining center has an integral main body with a channel-like cross-section constituted by left and right skirt portions and a central cavity formed between the skirt portions, the main body having a pair of race receiving grooves formed in the opposi

A linear slide bearing for use in, for example, machining center has an integral main body with a channel-like cross-section constituted by left and right skirt portions and a central cavity formed between the skirt portions, the main body having a pair of race receiving grooves formed in the opposing surfaces of the skirt portions confronting the central cavity and non-loaded ball grooves disposed near both ends of respective race-receiving grooves and communicating with the race-receiving grooves. The linear slide bearing further has a pair of bearing races constituted by arcuate members having a semi-circular cross-section, each of said bearing races being provided in its inner surface with a pair of loaded ball grooves.

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A linear slide bearing comprising: an integral main body with a channel-like cross-section constituted by left and right skirt portions and a central cavity formed between said skirt portions, said main body having a pair of race receiving grooves formed in the opposing surfaces of said skirt portio

A linear slide bearing comprising: an integral main body with a channel-like cross-section constituted by left and right skirt portions and a central cavity formed between said skirt portions, said main body having a pair of race receiving grooves formed in the opposing surfaces of said skirt portions confronting said central cavity and non-loaded ball grooves disposed near both ends of respective race-receiving grooves and communicating with said race-receiving grooves; a pair of bearing races constituted by arcuate members having a semi-circular cross-section, each of said bearing races being provided in its inner surface with a pair of loaded ball grooves; a track shaft received in said central cavity of said main body and provided at its both shoulder portions with ribs extending along the length thereof, said track shaft being provided at the upper and lower sides of each rib with loaded ball grooves corresponding to said loaded ball grooves in the adjacent bearing race; a pair of end covers adapted to be attached to both longitudinal ends of said main body so as to straddle said track shaft, each of said end cover being provided in its inner surface with ball turning grooves for connecting said loaded ball grooves in said bearing races and in said track shaft to corresponding non-loaded ball grooves in said main body, and race retaining grooves for retaining adjacent ends of said bearing races; and balls adapted to be recirculated through endless ball passages constituted by loaded ball passages formed by said loaded ball grooves in said bearing races and said track shaft, non-loaded ball passages presented by said non-loaded ball grooves in said main body and said ball turning grooves formed in respective end covers.