Damping flange for agri-hub

Patent metadata

Field	Value
Publication number	US-9538697-B2
Application number	US-201514715644-A
Country	US
Kind code	B2
Filing date	May 19, 2015
Priority date	May 19, 2014
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

A hub-bearing assembly for rotatably mounting a tilling disc about an axis of rotation. The hub-bearing assembly includes an annular hub providing an axially extending tubular portion, comprising a housing and a radially outer flange for mounting a disc. A bearing unit is mounted within the housing. An elastic damping body axially is fitted between the radially outer flange and the disc.

First claim

The invention claimed is:

1. A hub-bearing assembly for rotatably mounting a tilling disc about an axis of rotation, the assembly comprising:
an annular hub providing an axially extending tubular portion, comprising a housing and a radially outer flange for mounting a disc;
a bearing unit mounted within the housing, the bearing unit comprising:
an outer ring,
a pair of inner rings, and
a dual set of rolling elements, interposed between the outer ring and the pair of inner rings; and

an elastic damping body axially fitted on the radially outer flange, on the side facing the mountable tilling disc, the elastic damping body further comprising a substantially annular wall, the substantially annular wall is steadily connected to a substantially cylindrical wall, the cylindrical wall being in a radially external position respect to the annular wall, the elastic damping body is fabricated of one of an elastomeric material or a plastic material, wherein the cylindrical wall of the elastic damping body is radially coupled with the flange, by:
a substantially cylindrical surface of the cylindrical wall, in a radially internal position, and
a corresponding substantially cylindrical surface of the flange, in a radially external position.

2. A hub-bearing assembly according to claim 1 , wherein the elastic damping body is located on a substantially annular surface of the flange, in an axially external position.

3. A hub-bearing assembly according to claim 2 , the flange further comprising an annular groove, wherein the annular groove is located along the substantially annular surface.

4. A hub-bearing assembly according to claim 3 , wherein the annular wall of the elastic damping body has an annular protrusion, wherein the annular protrusion is coupled with the annular groove.

5. A hub-bearing assembly according to claim 1 , wherein the substantially cylindrical surface of the flange is formed by a plurality of cylindrical portions, having decreasing diameters and each other connected by annular surfaces.

6. A hub-bearing assembly for rotatably mounting a tilling disc about an axis of rotation, the assembly comprising:
an annular hub providing an axially extending tubular portion, comprising a housing and a radially outer flange for mounting a disc;
a bearing unit mounted within the housing, the bearing unit comprising:
an outer ring,
a pair of inner rings, and
a dual set of rolling elements, interposed between the outer ring and the pair of inner rings; and

an elastic damping body axially fitted on the radially outer flange, on the side facing the mountable tilling disc, the elastic damping body is co-molded with the flange, wherein the substantially cylindrical surface of the flange is formed by a plurality of cylindrical portions, having decreasing diameters and each other connected by annular surfaces.

Assignees

• Ciulla Luca
• Maldera Carlo
• Skf Ab

Inventors

• Ciulla Luca
• Maldera Carlo

Classifications

• F16C35/07

  Fixing them on the shaft or housing with interposition of an element · CPC title

• A01B71/04 Primary

  Bearings of rotating parts, e.g. for soil-working discs · CPC title

• F16C2310/00

  Agricultural machines · CPC title

• F16C2226/62

  with pins, bolts or dowels · CPC title

• F16C35/067

  Fixing them in a housing (with interposition of an element F16C35/07) · CPC title