A dust-proof deep groove ball bearing
A deep groove ball bearing, dust-proof technology, applied in the direction of shaft and bearing, bearing components, mechanical equipment, etc., can solve the problems of bearing capacity limitation, small bearing balls, etc., to reduce the contact surface, improve the sealing effect, prevent falling falling effect
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Embodiment 1
[0031] The invention provides a deep groove ball bearing, such as figure 1 As shown, it includes a bearing outer ring 1, and a bearing inner ring 2 coaxially arranged inside the bearing outer ring, and a plurality of bearing balls 3 are arranged between the bearing outer ring 1 and the bearing inner ring 2, the bearing The ball 3 can roll in the outer raceway of the inner surface of the bearing outer ring 1 and the outer raceway of the outer surface of the bearing inner ring 2 .
[0032] The inner cavity between the bearing outer ring 1 and the bearing inner ring 2 of the deep groove ball bearing is sealed by two annular sealing rings 5 arranged axially opposite to each other, and the inner cavity between the bearing outer ring 1 and the bearing inner ring 2 The cavity is filled with bearing lubricant.
[0033] like Figure 4 As shown, the annular section of the sealing ring 5 has a multi-layer structure, including the outermost radial sealing edge 5.4, which is inserted a...
Embodiment 2
[0042] Further preferably, the cavity between the bearing outer ring 1 and the bearing inner ring 2 of the deep groove ball bearing is distributed with a bearing cage 6 which is interlocked by two parts, so that a plurality of bearing balls 3 are arranged in the circumferential direction to Evenly spaced and maintained.
[0043] like Figure 5 As shown, the half of the bearing cage 6 on the side of the bearing ball 3 includes a partially spherical cavity 6.7, and the two half sides are formed as a spherical cavity that contains and holds the bearing ball. In the axial direction between 2, the two sides of the spherical cavity form two annular grooves 6.2 and 6.4. The openings of the two grooves are opened to the bearing ball raceway and the openings diverge. The two grooves can be symmetrical or asymmetrical. The annular groove can be used as an additional groove for storing lubricant. During the operation of the bearing, the lubricant is temporarily accumulated and prevented f...
Embodiment 3
[0046] Further preferred, such as Image 6 As shown, the joint position of the bearing cage 6 between the bearing balls 3 is in the form of a fastening piece, preferably in the form of a tenon and a groove, so that the two halves of the bearing cage are fastened together without other connections Way.
[0047] The cage and the radial sealing edge can be made of plastic materials, such as polyamide 66 and polyhexamethylene amide. Such materials have good wear resistance under heavy loads, and have a small friction coefficient and good aging resistance. Of course, it can also be produced from conventional materials such as steel.
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