Patent ID: 9314896
Filing Date: 2016-04-19
CPC Classification: B24B,B25F

Claim Text:
1. A hand held power tool comprises: a motor room that houses a motor that drives a motor output shaft; a bevel gear comprising an interconnected crown gear and pinion gear, wherein the pinion gear is connected to a pinion shaft that is drivingly connected to the motor output shaft and the crown gear is drivingly connected to a tool holding shaft; a gear housing that at least partly delimits a fluid tight gear space around the bevel gear; a bearing, arranged around the pinion shaft and close to the pinion gear, which delimits a confined space around the pinion shaft and within the gear space; and a fluid tight axial sealing, arranged around the pinion shaft inside the confined space of the gear space, which seals off the gear space from the motor room, wherein at least one fluid conveying opening is arranged to put the confined space of the gear space in fluid contact with the rest of the gear space, wherein the bearing is supported by a hollow support member that is arranged outside the pinion shaft, and wherein the confined space of the gear space is axially delimited by the bearing on one side and by the fluid tight axial sealing on an other side further away from the bevel gear, and radially by the hollow support member.