Deep Groove Ball Bearings Bearing type
For the application of bearings, in use to withstand high load, strong impact and to prevent water and rust particles and other particles into, and developed a new type of ultra-high load capacity of the sealed, clean and lubricated bearing seals.
Experience shows that in the pollution of the working conditions, the bearings easily into the debris particles, and these debris particles will damage the raceway, resulting in stress concentration. In addition, if the lubrication is not uniform, so that the metal surface of the hard contact, resulting in a small "peeling" damage, will lead to stress concentration in the contact area, the two results in the stress concentration of the metal surface spill, and ultimately shorten the bearing life.
The study shows that by changing the bearing steel structure, the bearing can improve the working life of the bearing under the condition of impurity pollution or the edge lubrication condition, and improve the ability of the bearing to release the concentrated stress on the edge.
The best practical protection of the bearing is: when the impurities appear, it will stop it. The new deep groove ball bearing seal has both the above two advantages. This new type of bearing seal seal can not only inhibit the formation of negative pressure in the bearing to prevent water, so that the main seal is not directly exposed to water, from the water "breathing", but also play the impurity barrier in the concave Slot function. Ordinary bearing seals in the rotation and static state is a linear contact to maintain high strength tight seal performance, and this seal work, the surface contact instead of linear contact, so as to adapt to the bearing rotation of the sealing requirements, both tight, And does not produce a large negative pressure.
In order to verify the effectiveness of the new bore bearing seal, the operating speed of the bearing was increased from 100 r / min to 700 r / min and the radial load of 294 kN was applied while spraying at about 100 L / min. General hole bearing seals during this period, the negative pressure increases, while the new hole bearing seal suppresses the negative pressure to ensure the normal operation of the work.
Deep groove ball bearings, it is the most common type of rolling bearings, before the author has introduced the characteristics of miniature bearings and stainless steel bearings.
Deep groove ball bearings in the basic type by an outer ring, an inner ring, a group of steel balls and a set of cage. Deep groove ball bearing types are single and double row two, single row deep groove ball bearing type code is 6, double row deep groove ball bearing code 4. Its structure is simple, easy to use, is the most common production, the most widely used a class of bearings.
The working principle of deep groove ball bearings
Deep groove ball bearings are mainly subjected to radial loads and can also bear both radial and axial loads. When it is only subjected to radial loads, the contact angle is zero. When the deep groove ball bearings with a large radial clearance, with angular contact bearing performance, can withstand greater axial load, deep groove ball bearing friction coefficient is very small, the limit speed is also high.
Bearing structure of deep groove ball bearing.