公开(公告)号：DE69126168T2

公开(公告)日：1997-11-27

申请号：DE69126168

申请日：1991-05-07

Applicant: XEROX CORP

Inventor： ZEDEKAR STANLEY L ,  MIRCHANDANI VINOD ,  KLECKNER ROBERT J ,  CASTELLI VITTORIO R ,  JONES KEVIN E

IPC: F16C33/10 ,  G02B26/12 ,  H04N1/113 ,  G02B26/10

Abstract: An optical scanner (10) has grease bearings (26) between the rotor (16) and the housing ( 14). The grease bearings are grooved (32) which tends to pump the grease back into the bearing cup (28). The thixotropic property of the grease prevents its escape when the optical scanner is not operating. The grease bearings can be frusto-conical or spherical in shape with a complementary shaped bearing cup. The bearing cup (28), rather than the bearings, may be grooved. The bearing cup may also be stepped (Fig.3) to provide a pumping region and a reservoir region for the grease. Pressure means (88, Fig. 5) on the scanner housing may force the bearing cup onto the grease bearing.

公开(公告)号：DE69126168D1

公开(公告)日：1997-06-26

申请号：DE69126168

申请日：1991-05-07

Applicant: XEROX CORP

Inventor： ZEDEKAR STANLEY L ,  MIRCHANDANI VINOD ,  KLECKNER ROBERT J ,  CASTELLI VITTORIO R ,  JONES KEVIN E

IPC: F16C33/10 ,  G02B26/12 ,  H04N1/113 ,  G02B26/10

Abstract: An optical scanner (10) has grease bearings (26) between the rotor (16) and the housing ( 14). The grease bearings are grooved (32) which tends to pump the grease back into the bearing cup (28). The thixotropic property of the grease prevents its escape when the optical scanner is not operating. The grease bearings can be frusto-conical or spherical in shape with a complementary shaped bearing cup. The bearing cup (28), rather than the bearings, may be grooved. The bearing cup may also be stepped (Fig.3) to provide a pumping region and a reservoir region for the grease. Pressure means (88, Fig. 5) on the scanner housing may force the bearing cup onto the grease bearing.