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A hub-bearing assembly for soil-working discs

A technology of hub bearings and working discs, which is applied in the direction of bearing components, rotating bearings, bearings, etc., and can solve problems such as instability, movement of sealing equipment, and the inability of the lip to continue to be positioned correctly

Active Publication Date: 2009-11-11
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These wires getting tangled around and on the sides of the sealing device can destabilize the sealing device or move parts thereof so that the lips of the sealing device cannot continue to be properly positioned on the respective bonding surfaces

Method used

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  • A hub-bearing assembly for soil-working discs
  • A hub-bearing assembly for soil-working discs
  • A hub-bearing assembly for soil-working discs

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] First refer to figure 1 , the hub bearing assembly for the soil working disc D includes a hub bearing unit generally indicated by 10 and a cartridge-type sealing device associated with the hub bearing unit 10 .

[0015] The hub bearing unit comprises a rotatable outer race 11 forming on one side a radial flange 12 for fixing a disc D by means of bolts B fitting in a plurality of axial holes 13 . A set of double bearing balls 14, 15 is interposed between an outer race 11 and a pair of inner races 16, 17, said inner races being fastened side by side on a central shaft A which is drawn from the frame of the agricultural machine. Arm E extends. The inner races 16, 17 are axially clamped in place against the shoulder S of the shaft A by means of a ring nut G screwed on the free end of the shaft A. On the side facing the disc D, an O-ring gasket 18 is accommodated in an annular groove 19 and is pressed between the outer race 11 and the disc D, ensuring a sealing effect prev...

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PUM

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Abstract

A hub-bearing assembly serves to rotatably mount a soil-working disc (D) on a supporting axle (A) of an agricultural machine. The assembly comprises a hub-bearing unit (10) and a sealing device (20). The a hub-bearing unit has a radially outer, rotatable outer race (11) from one side of which a flange (12) radially extends for mounting a disc (D). The sealing device (20) is mounted on a side of the hub-bearing unit opposite to the side of the flange (12). The radially outer surface of the assembly has a portion (38) intermediate the flange (12) and the side of the sealing device (20), which is radially recessed so as to serve as a preferential seat for winding wires picked up from the fields during use of the agricultural machine.

Description

technical field [0001] The present invention relates to hub bearing assemblies for soil working discs, especially tillage discs. Background technique [0002] The discs are typically arranged side-by-side on shafts extending from the frame of a plow or other similar agricultural machine. Each disc is mounted for rotation by means of a hub bearing unit comprising one or two stationary radially inner races fixed to a central shaft extending from an arm of the agricultural machine frame; a radially outer race , integrally formed with a radially outer flange for mounting the disc; and a double set of balls interposed between the inner and outer races. The inner race and the whole bearing unit are locked against the shoulder of the shaft by tightening a ring nut screwed on the free outer end of the shaft. See, for example, EP-B-1326489. [0003] In order to prevent contamination (water, mud, soil) from entering the bearing from the side opposite to where the disc is mounted, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B71/04
CPCF16C33/78A01B71/04F16C2310/00F16C19/184F16C33/7886
Inventor 奥夫·L·安德森洛伦佐·德拉莫尔詹马里奥·法达莫里齐奥·乔万内利莫罗·萨西斯蒂法诺·厄索沃尔夫冈·赫斯莱恩克里斯琴·康库
Owner AB SKF