Steering bearing

Abstract

The invention provides a steering baring, belongs to the technical field of mechanical bearings and aims to solve the problem that the service life of a dustproof sleeve is shortened because of abrasion to the dustproof sleeve caused by long-term use of the existing steering bearing. An oil sealing dustproof cover is in interference fit with a driving shaft by virtue of an upper area; a middle area annular surface covers a gap between an upper bearing ring and a lower bearing ring; in addition, a plurality of annular bulges are formed on the inner wall of the lower area annular stricture; a certain gap is formed between the lower area annular structure and the outer ring of the lower bearing ring; the lower area annular structure is in non-contact with the outer ring of the lower bearing ring; the gap between the lower area annular structure and the outer ring of the lower bearing ring is sealed by solid lubrication grease; the annular bulges are designed to form a maze structure, thereby preventing the solid lubrication grease from overflowing and forming an isolation layer; the lower area of the oil sealing dustproof cover is not liable to abrade in the long-time moving process; meanwhile, the solid lubrication grease is used for preventing the dust from entering the bearing; a good dustproof lubrication effect is achieved.

Description

technical field

[0001] The invention belongs to the field of mechanical technical bearings, and relates to a steering bearing, in particular to a steering bearing for a vehicle front fork. Background technique

[0002] Steering bearings for front forks of motorcycles and electric vehicles are non-standard special bearings. Due to their own characteristics, working conditions and regulations of motorcycle and electric vehicle manufacturers, the product design is different from standard general-purpose bearings. Bearing design gives priority to its rationality, practicability and economy.

[0003] As an important part of the steering device, the steering bearing is required to be able to rotate flexibly without stagnation under the combined load conditions of bearing a large axial load and a certain radial load at the same time. At present, in order to meet the technological process of current motorcycle and electric vehicle manufacturers, steering bearings are usually compos...

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