Shaft supported linear motion guide system

Details Shaft supported linear motion guide system Shaft supported linear motion guide system

1996-11-21

1998-11-03

Marmor, Charles A.

Bearings

Linear bearing

Recirculating

384501, F16C 2906, F16C 3360

Patent

active

058298851

ABSTRACT:
A linear motion system (10) comprises circulating balls (38) which run along steel rods (36) and on a shaft (18) within a support (20) of novel design. The latter consists of a light metal base (22) holding pairs of steel rods (36) in longitudinal channels (34) which open out towards the shaft (18). The generally cuboid or -shaped base (22) includes a longitudinal cavity (28) that is laterally joined by at least two ball channels (30) which are placed under a radial angle (.alpha.) relative to each other. The axes of neighboring longitudinal channels (34) are pairwise in planes (N) perpendicular to radial directions (R) in which the balls (38) are tangent to the associated shaft (18). Near outer zones (26) of base (22), set screws (46) are arranged at longitudinal distances (s) for adjustment of the gap width (b) of a slot (40) that opens out towards the cavity (28). Base (22) has an opening (52) associated to each ball channel (30), to be closed by a plug (54), a screw cap, etc. after insertion of the balls (38). A bridge (50), preferably a hollow profile, may carry a linear motion system (10) at either end and may include, e.g. centrally, a chamber (60) parallel to axes A of the shafts (18).

REFERENCES:
patent: 4630872 (1986-12-01), Teramachi
patent: 4696586 (1987-09-01), Krug
patent: 4778287 (1988-10-01), Jacob et al.
patent: 4797008 (1989-01-01), Helbig et al.
patent: 4895459 (1990-01-01), Werner
patent: 4921361 (1990-05-01), Steeves
patent: 5288151 (1994-02-01), Isert et al.
patent: 5439294 (1995-08-01), Rixen et al.

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