US 12,012,157 B2
Planetary roller screw and actuator for a rear axle steering of a motor vehicle comprising such a planetary roller screw
Daniel Faber, Nuremberg (DE); Benjamin Wuebbolt-Gorbatenko, Erlangen (DE); Alexander Hausmann, Erlangen (DE); and Alena Pöhnlein, Lonnerstadt (DE)
Assigned to Schaeffler Technologies AG &Co. KG, Herzogenaurach (DE)
Appl. No. 17/429,472
Filed by Schaeffler Technologies AG & Co. KG, Herzogenaurach (DE)
PCT Filed Dec. 6, 2019, PCT No. PCT/DE2019/101050
§ 371(c)(1), (2) Date Aug. 9, 2021,
PCT Pub. No. WO2020/164655, PCT Pub. Date Aug. 20, 2020.
Claims priority of application No. 10 2019 103 383.7 (DE), filed on Feb. 12, 2019.
Prior Publication US 2022/0089210 A1, Mar. 24, 2022
Int. Cl. B62D 5/04 (2006.01); F16H 25/22 (2006.01); F16H 25/24 (2006.01)
CPC B62D 5/0451 (2013.01) [F16H 25/2252 (2013.01); F16H 25/24 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A planetary roller screw having a threaded spindle, and having a nut element arranged on the threaded spindle, and having planets arranged distributed around a periphery of the threaded spindle, which mesh on one side with the threaded spindle and on the other side with the nut element, which is rotatably mounted via a first bearing pair on a rotationally driven planet carrier that receives the planets and is rotatably mounted on a housing via a second bearing pair, wherein the planet carrier has a sleeve radially surrounding the nut element and a pair of flanges on opposite ends of the sleeve, each flange having a first bearing seat of one of the first bearing pair and a second bearing seat of one of the second bearing pair, each one of the pair of flanges being connected with axial play to one another via a rotationally fixed connection between each one of the pair of flanges and the sleeve, and an adjustment ring configured for axially adjusting one of the bearings of the second bearing pair is supported on the housing.