Geared motor, including a gearbox and an electric motor, and method for producing variants in a type series of geared motors

A geared motor, comprising:

• a gearbox including a housing part;
• an electric motor including a stator housing;
• a bearing flange including a motor-side pattern of holes and a gearbox-side pattern of holes;
• a rotor shaft;
• and
• a bearing received in the bearing flange and including an inner ring mounted onto the rotor shaft;
• wherein the motor-side pattern of holes has an axis of rotational symmetry, a discreet axis of rotational symmetry, and/or an integer axis of rotational symmetry that is parallel to and spaced apart from, and not coaxial to, an axis of rotational symmetry, a discreet axis of rotational symmetry, and/or an integer axis of rotational symmetry of the gearbox-side pattern of holes.

A geared motor, comprising:

• a gearbox including a housing part;
• an electric motor including a stator housing;
• a bearing flange including a first cheek and a second cheek connected to the first cheek via a web;
• a rotor shaft;
• and
• a bearing received in the bearing flange and including an inner ring mounted onto the rotor shaft;
• wherein the first cheek is centered relative to the stator housing via a first centering collar arranged on the first cheek or on the stator housing;
• wherein the second cheek is centered to the housing part of the gearbox via a second centering collar arranged on the second cheek or on the housing part of the gearbox;
• wherein the first centering collar has an axis of rotational symmetry oriented parallel to and spaced apart from an axis of rotational symmetry of the second centering collar and/or the first centering collar is arranged as an uninterrupted ring and/or an interrupted circular ring having a ring axis spaced apart from a ring axis of the second centering collar arranged as an uninterrupted ring and/or an interrupted circular ring.

A method for producing variants of a type series of geared motors, comprising:

• connecting a selective one of a first bearing flange, including a motor-side pattern of holes and a gearbox-side pattern of holes, or a second bearing flange, including a first cheek and a second cheek connected to the first cheek via a web, of a modular system to a housing part of the modular system and to a stator housing of the modular system to produce:
• (a) a first geared motor including:
• a gearbox including the housing part;
• an electric motor including the stator housing;
• the bearing flange;
• a rotor shaft;
• and
• a bearing received in the first bearing flange and including an inner ring mounted onto the rotor shaft;
• wherein the motor-side pattern of holes has an axis of rotational symmetry, a discreet axis of rotational symmetry, and/or an integer axis of rotational symmetry that is parallel to and spaced apart from, and not coaxial to, an axis of rotational symmetry, a discreet axis of rotational symmetry, and/or an integer axis of rotational symmetry of the gearbox-side pattern of holes;
• or
• (b) a second geared motor including:
• a gearbox including the housing part;
• an electric motor including the stator housing;
• the second bearing flange;
• a rotor shaft;
• and
• a bearing received in the second bearing flange and including an inner ring mounted onto the rotor shaft;
• wherein the first cheek is centered relative to the stator housing via a first centering collar arranged on the first cheek or on the stator housing;
• wherein the second cheek is centered to the housing part of the gearbox via a second centering collar arranged on the second cheek or on the housing part of the gearbox;
• wherein the first centering collar has an axis of rotational symmetry oriented parallel to and spaced apart from an axis of rotational symmetry of the second centering collar and/or the first centering collar is arranged as an uninterrupted ring and/or an interrupted circular ring having a ring axis spaced apart from a ring axis of the second centering collar arranged as an uninterrupted ring and/or an interrupted circular ring;
• wherein the second geared motor has a lower transmission ratio than the first geared motor.