Friction-type false twister bearing

Abstract

The invention discloses a friction-type false twister bearing which comprises an outer ring and a mandrel, wherein the outer ring is internally provided with an outer channel, two ends of the outer ring are provided with sealing grooves, and the mandrel is provided with an inner channel; a bearing retainer is positioned between the mandrel and the outer ring, the bearing retainer sleeves the mandrel, and a pocket hole of the bearing retainer is provide with a plurality of steel balls; the steel balls are matched with the inner channel of the mandrel and the outer channel of the outer ring, the sealing grooves of the outer ring are provided with sealing rings and sealing slices, and the outer end of a sealing ring on the mandrel is sleeved by a ferrule; the distance between the outer end surface of the ferrule and the synclastic end surface of the outer ring is H, and the mandrel of the outer end of the sealing slice is provided with a synchromesh gear. The friction-type false twister bearing has the advantages that the mandrel is directly provided with the synchromesh gear, the phenomenon that the synchromesh gear and the mandrel fall out is solved, meanwhile the quantity of synchromesh gear parts is lowered, the length of the mandrel is shortened, and the production cost is saved.

Description

technical field [0001] The invention relates to a special bearing for elastic yarn machine and chemical fiber, in particular to a friction type false twister bearing. Background technique [0002] The friction false twister bearing is the key component of the high-speed elastic yarn machine. The friction false twister bearing adopts double-groove and double-row ball design, which has stable operation and large load capacity. It is sealed with multi-layer or L-shaped structure and has a good dust-proof effect; Sorting assembly, precise balance, the maximum speed can reach 20,000 rpm, with the characteristics of small size, good rigidity, low noise and long life. Friction type false twister bearings are divided into active bearings and driven bearings, which include outer rings, mandrels, synchronous gears, cages, steel balls, sealing rings and ferrules, etc. The synchronous gears and mandrels are set through interference fit On the mandrel, the requirement for interference i...

AI Technical Summary

Problems solved by technology

Friction type false twister bearings are divided into active bearings and driven bearings, which include outer rings, mandrels, synchronous gears, cages, steel balls, sealing rings and ferrules, etc. The synchronous gears and mandrels are set through interference fit On the mandrel, the requirement for interference is very high during press-fitting. If the interference is small, it is easy to cause the synchronous gear to fall off from the mandrel; if the interference is large, it is easy to cause the mandrel to bend and deform during press-fitting.

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