Motor with axially moveable bearing member
AssigneeSankyo Seiki Mfg. Co., Ltd.
InventorsHitoshi Mutai, Kenichi Hoshina
Life of this patent
Estimating the term…
Abstract
A motor includes a rotor section with a rotor shaft having an end section, and a stator section including a yoke section disposed opposite the rotor section. The motor is also equipped with a bearing assembly having a bearing member that includes a main bearing section with a recess section and a ball bearing received in the recess section wherein the ball bearing rotatably support the end section of the rotor shaft, and a bearing holder defining a center through hole that slidably holds the main bearing section of the bearing member in the axial direction, wherein the bearing holder is formed from a sintered compact member.
Claims24
A motor comprising:
- a rotor section including a rotor shaft having an end section;
- a bearing member that rotatably supports the end section of the rotor shaft;
- a bearing holder that moveably supports the bearing member in an axial direction, wherein the bearing holder is formed from a sintered compact member.
A motor comprising:
- a rotor section including a rotor shaft having an end section;
- a stator section including a yoke section disposed opposite the rotor section, the stator section having an outer diameter;
- a bearing member having a main bearing section with a recess section and a ball bearing received in the recess section wherein the ball bearing rotatably support the end section of the rotor shaft;
- a bearing holder having a width at least in one direction shorter than the outer diameter of the stator section and defining a center through hole that slidably holds the main bearing section of the bearing member in the axial direction, wherein the bearing holder is formed from a sintered compact member.
A bearing assembly for a motor including a rotor section with a rotor shaft having an end section, the bearing holder assembly comprising:
- a bearing member that rotatably supports the end section of the rotor shaft:
- and
- a bearing holder that moveably supports the bearing member in an axial direction, wherein the bearing holder is formed from a sintered compact member.
A bearing assembly for a motor including a rotor section with a rotor shaft having an end section, a stator section including a yoke section disposed opposite the rotor section, the stator section having an outer diameter, the bearing assembly comprising;
- a bearing member having a main bearing section with a recess section and a ball bearing received in the recess section wherein the ball bearing rotatably support the end section of the rotor shaft;
- a bearing holder having a width at least in one direction shorter than the outer diameter of the stator section and defining a center through hole that slidably holds the main bearing section of the bearing member in the axial direction, wherein the bearing holder is formed from a sintered compact member.
Dependencies are inferred from the claim text.