With the double deep groove ball bearings is the role of the geostationary ring and rotating ring of deep groove ball bearings are respectively and mount the static part ( usually bearing) and a rotating part (usually the axis ) with consolidation, in order to achieve under rotating state transfer load and limited movement system with respect to basic tasks for static systematic position.
On the shaft and bearing, deep groove ball bearings for radial, axial and fixed in the tangential direction three position. Radial and tangential orientation through the tight fit of the double deep groove ball bearing mining, axial position only in a few cases the use of tight fit; general axial spacing parts, such as the end cap and retaining ring to limit the axial position in the context of clearance.
Deep groove ball bearing double-row radial direct contact with the bearing performance of preventing adhesion and formation of boundary lubrication. Effect of friction factor is compatible materials:
( 1 ) into the difficult easy degree accessory material metallurgy alloy.
( 2 ) affinity materials and lubricants.
( 3 ) into the coefficient of friction Vice materials without lubrication condition.
( 4 ) the microstructure of materials.
( 5 ) the material's thermal conductivity.
( 6 ) characteristics of the material surface can size and film.
Oil pump pressure oil nozzle jet to the bearings, into the deep groove ball bearing of oil into the oil tank through the other end bearing. In the bearings rotate at high speed, a rolling body and a holding frame to rotate speed is quite high in the surrounding air to form air flow, using general lubrication methods are very difficult to the lubricating oil to the deep groove ball bearings, then we must use the method of high-pressure jet lubricating oil spray to double deep groove ball bearings, nozzle position should be placed between the in the inner ring and cage center.



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