Sealing element and cylindrical roller bearing sealed by same
A technology of cylindrical roller bearings and seals, which is applied to bearing components, shafts and bearings, mechanical equipment, etc., can solve problems such as insufficient width of seals, difficult placement of seals, and inability to meet sealing requirements, and achieves good sealing effect. Ease of assembly and disassembly
Active Publication Date: 2013-06-05
中浙高铁轴承有限公司
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Problems solved by technology
However, this structure of placing a rubber strip or a seal with a steel plate skeleton between the ribs of the outer ring of the cylindrical roller bearing and the ribs of the inner ring of the cylindrical roller bearing to seal the bearing requires that the bearing have ribs of sufficient width so that There is enough space for the seal to be placed, but for cylindrical roller bearings with a small rib width, using this sealing method, due to the insufficient width required for placing the seal, it is difficult to place the seal well, and it may fall Phenomenon, therefore can not meet the sealing requirements
Method used
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[0021] Examples of cylindrical roller bearings in the present invention are Figure 1 ~ Figure 3 As shown, the specific implementation of this embodiment will be described in detail below in conjunction with the accompanying drawings:
[0022] Cylindrical roller bearings, including the bearing outer ring 2 and the bearing inner ring 3 that extend forward and backward in the axial direction, the inner peripheral surface of the bearing outer ring 2 is provided with outer ring ribs on the front and rear sides, and the outer peripheral surface of the bearing outer ring 2 is provided with annular rings. The concave surface 21, the inner ring rib is provided on the rear side of the outer peripheral surface of the bearing inner ring 3, the bearing outer ring 2 and the bearing inner ring 3 corresponding raceways are equipped with cylindrical rollers 4 through the cage 5, and the outer peripheral surface of the bearing outer ring A seal is set on the annular concave surface 21, and the...
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The invention relates to a sealing element and a cylindrical roller bearing sealed by the sealing element; the sealing element comprises a ring-shaped sealing plate body provided with a center through hole; an external ring-shaped boss and an internal ring-shaped boss which respectively extend along the axial direction of the center through hole are respectively arranged at the external diameter and the internal diameter of the sealing plate body; the external ring-shaped boss is in interference fit with the outer ring of the bearing; the internal ring-shaped boss is in rotary clearance fit with the inner ring of the bearing, or the external ring-shaped boss is in rotary clearance fit with the outer ring of the bearing; and the internal ring-shaped boss is interference fit with the inner ring of the bearing. The sealing element is suitable for the occasions which have a flange with thinner axial thickness and in which the sealing element can not be easily placed, and is good in sealing effect.
Description
technical field [0001] The invention relates to the technical field of bearings, in particular to a seal and a cylindrical roller bearing sealed by the seal. Background technique [0002] Cylindrical roller bearings include bearing outer rings, bearing inner rings, and cylindrical rollers as rolling elements. They are used to install cylindrical roller cages. They are usually set up to prevent foreign debris from entering the rolling elements of the bearings and damage the bearings. There are seals. The existing seals are such as the Chinese patent "Sealed Cylindrical Roller Bearing for Coal Conveying Devices in Coal Mine" with the authorized announcement number CN 200965007Y. The inner ring and the cylindrical roller arranged between the outer ring of the bearing and the inner ring of the bearing, the cylindrical roller is fixed between the outer ring of the bearing and the inner ring of the bearing through the cage, wherein the outer ring of the bearing is provided with do...
Claims
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Inventor 李燕春王高峰张亚平
Owner 中浙高铁轴承有限公司