Sealed bearing
AssigneeIHC Holland N.V.
InventorTeunis Visser
Life of this patent
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Abstract
The invention relates to the combination of a radial bearing 4,5;38,39 and a seal 14,17,21; 42,45,46 which both make use of elastomeric bushings 6,7,17,42,45 having a smooth cylindrical surface supporting a shaft (1,36) provided with helical grooves 10,11,15,19,46 conveying the lubricating liquid said helical grooves conveying in the same or opposite directions, said combination of radial bearing and seal further can be combined with an axial bearing 40 having grooves in a disc 53 which rotates with the shaft (36) and which is in engagement with stationary discs 54,55 of elastomeric material.
Claims8
A sealed bearing utilizing elastomeric materials such that at the location of the seal the shaft is provided with a helical groove cooperating with a stationary cylindrical elastomeric sleeve having a L-shaped cross section characterized in that the radial bearing is comprised of a stationary elastomeric bush and that at the location of the bearing the shaft is provided with a helical groove the direction of conveyance of which is the same as or opposite to the direction of conveyance of the groove in the shaft at the location of the seal and the propulsive flank of which is at a very small angle with the axis of the shaft and with the tangent to the circumference of the shaft, said bearing being supplied with liquid lubricant.
Dependencies are inferred from the claim text.