Low noise conical roller bearing

Abstract

The present invention relates to a low noise conical roller bearing. The bearing comprises an inner ring, an outer ring, conical rollers and a conical ring-shaped cage, and further comprises a sealing ring. An inner side end of the sealing ring is provided with a scarf connection groove corresponding to a large diameter end of the conical ring-shaped cage. The conical rollers can be rotatably supported on the cage. The cage is arranged on the outer side of the inner ring. The outer ring is arranged on the outer side of the cage. The inner ring and the outer ring form a rotatable connection bythe rollers. The sealing ring is sleeved on an outer circumference side surface of one end of the inner ring, and is connected with the cage by the scarf connection groove. The part corresponding to the inner end of the sealing ring presses and contacts the corresponding end surface of the outer ring. The bearing has the following advantages that: the noise generated during the collision of the rollers and the cage can be substantially reduced; a shielding effect is provided for the noise generated inside the bearing; effects of sealing and dust proof are achieved.

Description

technical field [0001] The invention relates to a low-noise tapered roller bearing. Background technique [0002] The current general tapered roller bearings are composed of four parts: outer ring, inner ring, roller and cage. Please refer to figure 2 . During use, the inner ring is installed on the journal and rotates with the shaft, and the outer ring is installed in the bearing hole of the machine base or parts. In most cases, the outer ring does not rotate, and the friction caused by the relative rotation between the inner and outer rings The force makes the rollers roll along the raceway, and the cage does not touch the inner and outer rings, and the rollers drive the cage to rotate along the axis. [0003] Tapered roller bearings can bear axial and radial forces at the same time, so they are mostly used in equipment with poor working conditions such as automobiles, construction machinery, and agricultural machinery. Since the tapered roller bearing itself does not h...

AI Technical Summary

Problems solved by technology

Since the tapered roller bearing itself has no sealing device, it is extremely vulnerable to the invasion of foreign matter such as dust and leads to early failure, thus greatly shortening the service life of the bearing

In addition, when the tapered roller bearing rotates at high speed, the rotation of the cage is driven by the pushing of the rollers, which is prone to movement in the axial direction. Collision, resulting in high noise of the bearing, in severe cases, it will produce obvious noise pollution and affect the surrounding environment

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