US 2023/0392648 A1Published application

Plastic cage, in particular for an inner-ring-fastened roller sleeve

AssigneeSchaeffler Technologies AG & Co. KG

InventorsStefan Wächtler, Robert Dressel, Alfred Hock

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Abstract

A plastic cage consists of two side rings that have a common axis of rotation and are axially spaced apart from one another, and a plurality of cage webs that connect the side rings to one another and between which pockets are formed for receiving rolling elements, wherein the plastic cage is axially slotted at at least one peripheral location by a parting line which defines a first cage end and a second cage end and at the boundary surfaces of which mutually corresponding closure elements are located, by means of which the first and second cage ends can be fixed relative to one another both in the axial and radial direction and in the peripheral direction.

Claims14

Dependent claims

A plastic cage comprising two side rings that have a common axis of rotation and are axially spaced apart from one another, and a plurality of cage webs that connect the side rings to one another, between which pockets are formed for receiving rolling elements, wherein the plastic cage is axially slotted at at least one peripheral location by a parting line which defines a first and a second cage end and at the boundary surfaces of which mutually corresponding closure elements are located, such that the cage ends can be fixed relative to one another both in the axial and radial direction and in the peripheral direction via the corresponding closure elements, wherein the parting line runs radially centrally through a tangentially widened cage web and the closure elements are each formed by a projection molded onto each boundary surface of the parting line as an extension of the outer lateral surface of the cage web, which is axially spaced from the side rings with a latch which points radially inwards at its free end, to which a projection molded onto each boundary surface of the parting line as an extension of the inner lateral surface of the cage web and also axially spaced from the side rings is assigned opposite it in the peripheral direction, with a latch pointing radially outwards from the cage at its free end, wherein one of the latches pointing outwards from the cage additionally has an axial extension for axially fixing the cage ends, which is connected to a tangential extension of the adjacent side ring.

A cage for a bearing, comprising:

a first side ring and a second side ring in an axially-spaced relationship with the first side ring and connected therewith via a plurality of cage webs that define pockets for receiving roller elements therein;
a first cage end extending between the first and second side rings and having a first plurality of closure elements that protrude outward from a first boundary surface, wherein the first plurality of closure elements includes a first closure element, comprising:
a first projection molded onto the first boundary surface;
and
a first latch that extends a first radial direction from the first projection to a first free end of the first latch;
and
a second cage end extending between the first and second side rings and having a second plurality of closure elements that protrude outward from a second boundary surface, wherein the second plurality of closure elements includes a second closure element, comprising:
a second projection molded onto the second boundary surface;
and
a second latch that extends a second radial direction opposite the first radial direction from the second projection to a second free end of the second latch, the free end of the second latch having an axial extension that extends axially outboard to a tangential extension that extends to one of the first and second side rings therefrom,
the first and second cage ends being operable between a disengaged condition, wherein the first plurality of closure elements are in a spaced relationship with the second plurality of closure elements such that a gap is defined between the first and second cage ends, and an engaged condition, wherein the first closure element is engaged with the second closure element, such that movement of the first and second cage ends in axial, radial, and peripheral directions is limited by contact between the first and second closure elements.

8 more elements

Dependencies are inferred from the claim text.