公开(公告)号：US11506243B2

公开(公告)日：2022-11-22

申请号：US16925219

申请日：2020-07-09

申请人： Amsted Rail Company, Inc.

发明人： James Hargraves ,  Michael A. Mason

IPC分类号： F16C33/78 ,  F16C19/38 ,  F16C43/04 ,  F16C33/80 ,  F16C35/04 ,  B60H1/32 ,  B60H1/00 ,  F25B30/02 ,  F25D17/02 ,  F28D9/00

摘要： A temperature-robust polymer shroud for a roller bearing seal includes a shroud body and an inner diameter leg defining respective portions of a single continuous part. The shroud body encircles a rotation axis of the polymer shroud and extends predominantly in directions orthogonal to the rotation axis from an inner diameter to an outer diameter. The inner diameter leg connects to the shroud body at the inner diameter and encircles the rotation axis, wherein, along the entire inner diameter of the shroud body, the inner diameter leg is oriented at an oblique angle to the rotation axis to extend both (a) radially inward from the inner diameter and (b) axially away from the inner diameter along a first direction parallel to the rotation axis. A roller bearing seal includes a seal case, an elastomer lip, and the temperature-robust polymer shroud.

公开(公告)号：US20210048071A1

公开(公告)日：2021-02-18

申请号：US16994507

申请日：2020-08-14

申请人： Amsted Rail Company, Inc.

发明人： James Hargraves

IPC分类号： F16C33/80 ,  F16C33/78

摘要： A labyrinth seal includes a seal case with an inner-diameter leg encircling a rotation axis, and an insert fixed in the seal case and encircling the rotation axis. The labyrinth seal also includes a slinger encircling the rotation axis and wrapping around the inner-diameter leg to cooperate with the seal case to form a first part of a labyrinth path. The slinger rotates relative to the seal case. The labyrinth seal also includes a rotor that encircles the rotation axis, cooperates with the insert to form a second part of the labyrinth path, and interlocks with the insert to limit axial movement of the rotor when the rotor rotates relative to the insert. The labyrinth seal may be combined with a bearing cone, a bearing cup, and a plurality of rollers to form a roller bearing assembly.

公开(公告)号：US11598375B2

公开(公告)日：2023-03-07

申请号：US16994507

申请日：2020-08-14

申请人： Amsted Rail Company, Inc.

发明人： James Hargraves

IPC分类号： F16C33/80 ,  F16C33/78 ,  F16J15/447

摘要： A labyrinth seal includes a seal case with an inner-diameter leg encircling a rotation axis, and an insert fixed in the seal case and encircling the rotation axis. The labyrinth seal also includes a slinger encircling the rotation axis and wrapping around the inner-diameter leg to cooperate with the seal case to form a first part of a labyrinth path. The slinger rotates relative to the seal case. The labyrinth seal also includes a rotor that encircles the rotation axis, cooperates with the insert to form a second part of the labyrinth path, and interlocks with the insert to limit axial movement of the rotor when the rotor rotates relative to the insert. The labyrinth seal may be combined with a bearing cone, a bearing cup, and a plurality of rollers to form a roller bearing assembly.

公开(公告)号：US20200340719A1

公开(公告)日：2020-10-29

申请号：US16925219

申请日：2020-07-09

申请人： Amsted Rail Company, Inc.

发明人： James Hargraves ,  Michael A. Mason

IPC分类号： F25B30/02 ,  B60H1/00 ,  B60H1/32

摘要： A temperature-robust polymer shroud for a roller bearing seal includes a shroud body and an inner diameter leg defining respective portions of a single continuous part. The shroud body encircles a rotation axis of the polymer shroud and extends predominantly in directions orthogonal to the rotation axis from an inner diameter to an outer diameter. The inner diameter leg connects to the shroud body at the inner diameter and encircles the rotation axis, wherein, along the entire inner diameter of the shroud body, the inner diameter leg is oriented at an oblique angle to the rotation axis to extend both (a) radially inward from the inner diameter and (b) axially away from the inner diameter along a first direction parallel to the rotation axis. A roller bearing seal includes a seal case, an elastomer lip, and the temperature-robust polymer shroud.