US 12,038,078 B2
Pulley device for a tensioner roller or winding roller
Benoit Arnault, Saint-Cyr-sur-Loire (FR); Benoît Hauvespre, Saint Etienne de Chigny (FR); and Nicolas Tronquoy, Fondettes (FR)
Assigned to Aktiebolaget SKF, Gothenburg (SE)
Filed by Aktiebolaget SKF, Gothenburg (SE)
Filed on May 1, 2021, as Appl. No. 17/246,616.
Application 17/246,616 is a division of application No. 16/363,401, filed on Mar. 25, 2019, granted, now 11,371,598.
Claims priority of application No. 1852854 (FR), filed on Apr. 3, 2018.
Prior Publication US 2021/0254700 A1, Aug. 19, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. F16H 57/00 (2012.01); F16C 19/06 (2006.01); F16C 19/18 (2006.01); F16H 7/08 (2006.01); F16H 7/12 (2006.01); F16H 7/20 (2006.01); F16H 55/36 (2006.01)
CPC F16H 57/0031 (2013.01) [F16C 19/06 (2013.01); F16C 19/18 (2013.01); F16H 7/08 (2013.01); F16H 7/12 (2013.01); F16H 7/20 (2013.01); F16H 55/36 (2013.01); F16C 2361/63 (2013.01); F16H 2007/0865 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A pulley device for a tensioner roller or winding roller of a transmission element, comprising:
a pulley,
a bearing having a rotating outer ring surmounted by the pulley, a fixed inner ring, the rings being coaxial and forming a radial space between one another, sealing means closing the radial space on each axial side, and a first row and a second row of rolling elements, arranged in the radial space, and having a mounting bore configured to receive a screw, and
an annular protective flange having a first radial portion of small diameter provided with an inner edge forming a bore of the flange and an outer edge, the first radial portion bearing against a front surface of the fixed inner ring, a second radial portion of large diameter provided with an inner edge and an outer edge, and a substantially axial intermediate portion connecting the outer edge of the first radial portion and the inner edge of the second radial portion, wherein
the intermediate portion forms a circumferential trough, the bottom of which is offset radially towards the inside of the pulley device compared with the outer edge of the front surface of the fixed inner ring,
a spacer located radially between the screw and the fixed inner ring, wherein
the fixed inner ring has first and second axial ends, and
wherein the first axial end of the fixed inner ring is abutted by the spacer and the second axial end of the fixed inner ring is abutted by the protective flange.