Bearing pin for a planetary transmission and carrier arrangement for a planetary transmission

• US 8,753,244 B2
• Filed: 04/19/2012
• Issued: 06/17/2014
• Est. Priority Date: 04/20/2011
• Status: Expired due to Fees

• Current Assignee: Schaeffler Technologies AG & Co.KG (INA-Holding Schaeffler GmbH & Co. KG)
• Original Assignee: Schaeffler Technologies AG & Co.KG (INA-Holding Schaeffler GmbH & Co. KG)
• Inventors: Pabst, Alexander, Ziegler, Andreas, Beeck, Frank
• Primary Examiner(s): YOUNG, EDWIN
• Application Number:
  US13/450,900
• Publication Number:
  US 20120270696A1
• Time in Patent Office: 789 Days
• Field of Search: 384/456, 384/462, 384/474
• US Class Current: 475/331
• CPC Class Codes: F16H 2057/085 Bearings for orbital gears
• CPC Class Codes: F16H 57/0479 Gears or bearings on planet carriers
• CPC Class Codes: F16H 57/08 of gearings with members having orbital motion

Abstract

A bearing pin for a planetary transmission, which has a cylindrical base body with a radial bore formed in one axial end of the base body. A locking element is mounted with a salient radial portion in the radial bore and serves as an anti-rotation feature of the base body. The bearing pin creates a possibility of reliable fixing of a bearing pin in a planetary transmission with a low-complexity manufacturing procedure. Also, a carrier arrangement for a planetary transmission, which includes such a bearing pin is disclosed.

Claims

1. A bearing pin for a planetary transmission, comprising:

a cylindrical base body having a hollow cylindrical configuration with a first open axial end and a second closed axis end, wherein a radial bore is formed proximate the first axial end of the base body and extends through an entire diameter of the base body; and

a locking element extending through the entire radial bore and having a salient radial portion that extends radially external to the base body and serves as an anti-rotation feature of the base body.

2. The bearing pin according to claim 1, wherein the locking element is a rolling element.

3. The bearing pin according to claim 1, wherein the locking element is a dowel pin.

4. The bearing pin according to claim 1, wherein the base body has a plurality of oil bores.

5. The bearing pin according to claim 1, wherein the base body is made of a metallic material.

6. A carrier arrangement for a planetary transmission, comprising:

a carrier element having a recess; and

a bearing pin having a cylindrical base body with a radial bore formed in one axial end of the base body and a locking element, which has a salient radial portion mounted in the radial bore and serves as an anti-rotation feature of the base body, the bearing pin being arranged in the recess of the carrier element, and the locking element of the bearing pin being supported on the carrier element by the salient radial portion, wherein the carrier element has a groove into which the salient radial portion of the locking element is axially insertable.

7. The carrier arrangement according to claim 6, further comprising at least one planet gearwheel mounted on the bearing pin.

8. The carrier arrangement according to claim 6, further comprising an axial securing device arranged on one axial end of the bearing pin.

9. The carrier arrangement according to claim 6, wherein the carrier element is made of a metallic material.