Slewing bearing structure and seal type

Slewing bearing structure and seal type, rotary bearing, slewing bearing manufacturer-Xuzhou Hailin Slewing Bearing Co., Ltd.
                         
The slewing bearing is mainly composed of an upper ring, a lower ring and a full complement ball. The entire design of the slewing bearing is used for rotating solutions at low speed and light load. These two single-row and double-row designs and the convenience of pre-drilled mounting holes.
In actual life, the slewing bearing can control the weight difference of cold cutting at 1%, the collapse depth is 0.5mm, and the end face inclination is less than 2 ° 30. For the hot cutting weight difference is within 2%, the end face is inclined Degree is less than 3 °. Restricting the shearing die, that is, restricting the warpage, axial movement and notch flattening of the bar material in a radial tightening manner. In this way, some are tightened only at the fixed knife end, and some are tightened at both the fixed knife end and the movable knife end. The tightening method is either a cylinder type or a mechanism linkage.

Slewing bearing is a representative rolling bearing with a wide range of uses. It is used for high-speed and even high-speed operation and is very durable. This type of bearing has low friction, high limiting speed, simple structure, low cost and easy to achieve high manufacturing accuracy.
The slewing bearing also has a certain self-aligning ability. When it is inclined by 10 degrees relative to the housing hole, it still works normally, but it has a certain impact on the bearing life. Slewing bearing bearing cages are mostly steel stamped corrugated cages, and large bearings are mostly made of metal solid cages. The seal of the slewing bearing is to prevent the filled grease from leaking to the outside, and to prevent outside dust, impurities and water from entering the bearing and affecting the normal operation.
Because slewing bearings mostly work under heavy load and low speed, the seal type of the bearing adopts two structures: rubber seal and labyrinth seal. The rubber ring seal itself has a simple structure. It has been widely used due to its small footprint and reliable sealing performance. However, its disadvantage is that the rubber sealing lip is easy to age early and lose its sealing performance at high temperature. Therefore, slewing bearings that work under high temperature conditions With labyrinth seal.

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