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The key technology of ceramic bushing

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The key technology of ceramic bushing
Latest company news about The key technology of ceramic bushing

The key technology of ceramic bushing


A ring sleeve that ACTS as a gasket.In valve applications, the bushing is within the bonnet and is usually ceramic for sealing purposes.

latest company news about The key technology of ceramic bushing  0

1. Bushing set set of cone Angle difference is close friends certainly gb with delta D1mp - delta d3mp said that different size Duan Yun difference from + 0.018 0.09 is required to set set of cone Angle difference can only be big to small, the big end must cooperate with contact, small cone can end a little clearance and cone hole bad cooperation, form a complete set of spherical roller bearings can form single roller bearing, unstable operation, the vibration is big, too big, easy to loose, bearing life is short, high accuracy of set set of cone Angle difference should be 0.005 or less, to ensure that the contact area of not less than 90%.

2. The radial run-out amount of outer cone surface of bushing against inner hole (commonly known as wall thickness difference) of bushing should be of high precision; otherwise, the rotation axis cannot operate with bump due to centripetal force due to fair amount, with big vibration and big music sound. The wall thickness difference of "0" is an ideal shape.

3. The size segment below the maximum bearing inner diameter of 65 in national standard rules is about 1/2 of the maximum clearance value of the bearing specification group, which is quite similar to the maximum clearance value of class C precision. Therefore, the qualified product of the national standard is not suitable for the matching of precision and heavy load bearings.

latest company news about The key technology of ceramic bushing  1

4. Set of the lining sleeve for the 4 sets of male cone, the inner hole is better appearance of linearity, is to form a better tolerance, accuracy of cylindricity is better, this national standard is not rule any single section size within the tolerance field is qualified, so is the formation of male cone exterior linearity control is lax, especially male cone plunge-cut grinding mill processing, blank its linearity is not good, poor wheel dressing.

5. The appearance linearity of ordinary bushing is very poor, and ordinary enterprises do not have profilometer test. Therefore, this project has a big problem in the product of China's fixed bushing industry, which seriously affects the supporting accuracy and stability, and also leads to poor bearing function.

6. Set set the thread locking function of form a complete set of bearing is a lock nut rotation axis to move extrusion bearing under the set set of end face and bearing inner hole taper austerity, will reach the purpose of the bearings fixed on the axis of rotation, so the bearing nut and screw thread of adapter bushing is close friends certainly, to fit the common thread of the national standard requirements.

Pub Time : 2019-11-20 10:03:52 >> News list
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