Double-row tapered roller bearing

Abstract

The invention discloses a double-row tapered roller bearing, which comprises a first outer ring, an inner ring, a first holder, a first tapered roller, dustproof end covers, a first fastening screw, asecond outer ring, a second holder, a second tapered roller, a fixing steel hoop and a second fastening screw. The first holder and the second holder are fixed to the periphery of the inner ring; thefirst tapered roller is arranged on the first holder; the second tapered roller is arranged on the second holder; the first outer ring is sleeved on the outer side of the first tapered roller; the second outer ring is sleeved on the outer side of the second tapered roller; the first outer ring is fixedly connected with the second outer ring through the fixing steel hoop; one dustproof end cover is fixed between one end of the inner ring and one end of the first outer ring; and the other dustproof end cover is fixed between the other end of the inner ring and one end of the second outer ring.The double-row tapered roller bearing provided by the invention has the beneficial effects of large effective span, capability of being applied to a component adopting an overturning moment as a mainload, and large application range.

Description

technical field [0001] The invention belongs to the technical field of bearings, and in particular relates to a double-row tapered roller bearing. Background technique [0002] China is one of the first countries in the world to invent rolling bearings. In ancient Chinese books, the structure of axle bearings has long been recorded. According to archaeological relics and data, the oldest bearing with the prototype of modern rolling bearing structure in China appeared in Xuejiaya Village, Yongji County, Shanxi Province from 221 to 207 BC (Qin Dynasty). After the founding of New China, especially since the 1970s, under the strong impetus of reform and opening up, the bearing industry has entered a new high-quality and rapid development period. At the end of the seventeenth century, C. Wallow of England designed and manufactured ball bearings. And it was installed on the mail coach for trial use, and P. Worth of the United Kingdom obtained a patent for ball bearings. At the e...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a double-row tapered roller bearing to solve the above-mentioned background technology. The shape of the current bearing rollers is mostly spherical or cylindrical, so that the effective span of the bearing is small, and the overturning moment cannot be applied as the main load. components, making it suitable for small-scale problems

Images