Double-sealed deep groove ball bearing

• Main Author: ZHANG FUZHONG
• Format: Patent
• Language: English
• Published: 18.02.2015
• Subjects: BEARINGS; BLASTING; ELEMENTS OR CRANKSHAFT MECHANISMS; ENGINEERING ELEMENTS AND UNITS; FLEXIBLE SHAFTS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; ROTARY BODIES OTHER THAN GEARING ELEMENTS; SHAFTS; THERMAL INSULATION IN GENERAL; WEAPONS

The utility model relates to a double-sealed deep groove ball bearing which comprises an inner ring and an outer ring, wherein a mandrel is fixed in the middle of the inner ring; each end of the mandrel is 2.5mm higher than the end surface of the inner ring; a nylon retainer is arranged between the inner ring and the outer ring; steel balls are embedded in the nylon retainer; dust-proof covers are arranged on two left and right surfaces of the joint between the inner ring and the outer ring; the outer diameter part of each dust-proof cover is pressed into an outer ring sealing groove; both the outer ring and the inner ring are made of steel; protective layers are arranged on the outer surfaces of the inner ring and the outer ring. The double-sealed deep groove ball bearing is simple in structure, an original plastic bearing is replaced with the steel bearing which has the service life as long as 8,000 hours above, the service life is at least prolonged by 26 times compared with that of the plastic bearing, and the time for opening/closing air conditioning fan doors is shortened.