You can use ceramic can be achieved without self-lubricating

Bearing seals designed to prevent leakage of the lubricant inside the bearing parts, and to prevent harmful objects outside dust, moisture and foreign matter that penetrates into the bearing, so bearings can be lubricated to the oil in place Analysis of sealed bearings Sealed bearings can be separated from the inner ring and roller assembly and the outer ring with the composition of the cage can be installed separately. Roller and raceway contact at the contact line can be modified to reduce the stress concentration. Tapered roller bearings can withstand high radial and axial load. Because of the tapered roller bearing axial load can only pass one way, therefore, to pass in the opposite direction of the axial load will need to install another with symmetrical Tapered Roller Bearings.
Most of the amount of sealed bearings are single row tapered roller bearings. In the car's front wheels in recent years to spend the small size of the sealed angular contact ball bearing. Four-row tapered roller bearings used in large-scale cold rolling mill and other heavy machines.

Deep groove ball bearing are bearing the most common type

Deep groove ball bearing are bearing the most common type. The basic model consists of a deep groove ball bearing outer ring, an inner ring, a steel ball and a group of holding structure into. Deep groove ball bearing type has two kinds of single and double row deep groove ball structure also split seal and open two structures, open means bearing structure without seals, insert ball bearingseal deep groove ball into dust seal and oil seal.
Deep groove ball bearings mainly take radial load, but also to support radial and axial load. When the only radial load, the contact angle is zero. When the deep groove ball bearings with a larger radial clearance, the performance with angular contact bearings, can withstand greater axial load, deep groove ball bearing friction coefficient is small, speed is also very high.

Precision bearings in accordance with the ISO classification standard

precision bearing in accordance with the classification standards ISO divided into:. P0, P6, P5, P4, P2 grade increased sequentially, which is normal precision P0, other grades are precision level. Of course, different grading standards, different types of bearings, their grading methods are different, but the meaning is the one to. super-precision bearing performance requirements on a rotating body having high runout accuracy, high-speed rotation and low friction and friction change.
Since precision bearings themselves accuracy 1μm or less, thus requiring its matching parts (shaft, bearing, cap, ring, etc.) have a high dimensional accuracy and shape accuracy, especially to control the accuracy of the mating surfaces and bearing the same horizontal, which is crucial, but also the most easily overlooked.

Bearing the measurement definition

bearing measurement outer diameter, diameter size, height, which is the basic of the three dimensions was detected. Usually with a caliper and micrometer, or folders on the dial indicator gauge blocks, accurate point. With an inner diameter of the instrument can be beat and the outer diameter of the bearing runout. The main instruments for detecting bearing accuracy class enough.
Entity One way bearing GCr15 bearing steel, heat-treated hardness HRC61-65, bearing small size and high load carrying capacity, there is sufficient space to store the grease, may have come a long lubrication intervals.

Rolling mill bearingtechnology, is a systems engineering technology

Rolling mill bearingtechnology, is a systems engineering technology, and also the multidisciplinary field of comprehensive engineering technology, its development speed and ability to support the formation of a reflection of the pace of development of Chinese industry and the level achieved. Hereby briefly discusses several key aspects from running technology, manufacturing technology, testing technology, theoretical research, product development, complete sets of capacity.
Development of oil film bearing main parts, began in the late 1950s,aviation bearing in the case of a no pattern, nor information, three non-proprietary equipment carried. Development of oil film bearing the main parts, and easy, from material selection, process route, processing methods to special tooling design and manufacturing has a set of working procedures. From the choice of materials, taking into account the drogue and friction material pairing, drogue forging process of combining steel bushing sleeve and friction materials, steel sleeve process