US 9,810,308 B2
Pulley device
Claude Quincay, Saint Ouen les Vignes (FR); and Mickael Cousinery, Charentilly (FR)
Assigned to AKTIEBOLAGET SKF, Gothenburg (SE)
Filed by Claude Quincay, Saint Ouen les Vignes (FR); and Mickael Cousinery, Charentilly (FR)
Filed on Dec. 7, 2015, as Appl. No. 14/960,503.
Claims priority of application No. 14 62046 (FR), filed on Dec. 8, 2014.
Prior Publication US 2016/0160988 A1, Jun. 9, 2016
Int. Cl. F16H 7/20 (2006.01); F16H 55/36 (2006.01); F16C 13/00 (2006.01); F16C 35/063 (2006.01); F16C 19/08 (2006.01)
CPC F16H 55/36 (2013.01) [F16C 13/006 (2013.01); F16C 35/063 (2013.01); F16H 7/20 (2013.01); F16C 19/08 (2013.01); F16C 2361/63 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A pulley device, comprising:
a rolling bearing including:
an inner ring defining a central bore,
an outer ring, and
rolling elements mounted between the inner ring and the outer ring;
a pulley secured in rotation with the outer ring and provided with an element for engaging with a transmission member;
a screw comprising a head and a shank housed in the central bore of the inner ring, the screw being configured to fix the pulley device to a motor support;
a first sleeve arranged between the inner ring and the screw, on the side of the motor support;
the first sleeve including an inner surface that has a frustoconical portion having an increasing diameter toward the head of the screw; and
a second sleeve arranged radially between the inner ring and the screw, on the side of the head of the screw, the first sleeve and the second sleeve being configured to prevent contact between the screw and the inner ring.