US 12,138,769 B2
Mobile power tool and method
Jens Kondratiuk, Buchs (CH); Phillipp Lorenz, Munich (DE); Balasubramaniam Vengudusamy, Munich (DE); and Stefan Seemeyer, Wolfratshausen (DE)
Assigned to Hilti Aktiengesellschaft, Schaan (LI)
Appl. No. 18/038,790
Filed by Hilti Aktiengesellschaft, Schaan (LI)
PCT Filed Nov. 26, 2021, PCT No. PCT/EP2021/083139
§ 371(c)(1), (2) Date May 25, 2023,
PCT Pub. No. WO2022/122413, PCT Pub. Date Jun. 16, 2022.
Claims priority of application No. 20213304 (EP), filed on Dec. 11, 2020.
Prior Publication US 2023/0405785 A1, Dec. 21, 2023
Int. Cl. B25F 5/00 (2006.01); C10M 107/34 (2006.01); C10M 173/02 (2006.01); B25D 17/26 (2006.01); C10N 20/06 (2006.01); C10N 30/02 (2006.01); C10N 50/08 (2006.01)
CPC B25F 5/00 (2013.01) [C10M 107/34 (2013.01); C10M 173/02 (2013.01); B25D 17/26 (2013.01); B25D 2250/365 (2013.01); C10M 2201/02 (2013.01); C10M 2209/1055 (2013.01); C10N 2020/06 (2013.01); C10N 2030/02 (2013.01); C10N 2050/08 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A mobile power tool comprising a drive unit,
wherein the drive unit has an aqueous lubricant and/or in that the drive unit is set up for operation with the aqueous, lubricant, wherein, before the start of a running-in phase of the drive unit, a bond roughness sigma of two interacting contact surfaces of the drive unit is greater than 0.01 μm.