Rolling mill bearing

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Rolling mill bearing

Source: Bearing network time: 2018-01-20
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Rolling mill bearings are generally only used to accept radial loads; comparable to deep groove ball bearings of the same size; have a large radial load; limit speeds are close to deep groove ball bearings; but shaft p housing holes in cooperation with such bearings The processing demand is high; the inner ring axis and the outer ring axis are very skewed by .2°-4°); the two axes are skewed as the overrun limit; the roller and ferrule races are about to deteriorate; the bearing load is seriously affected. Ability; the life expectancy of the down bearing. Therefore, such bearings are required to be installed in the main components that accept the axial load effect; as long as the other types of bearings are used together to accept the axial load;
Generally speaking, the bearings are mostly ball and roller bearings. The rolling bearing is a kind of fine mechanical component that changes the sliding conflict between the working shaft and the shaft seat into a rollover conflict; then reduces the collision loss. Generally consists of outer ring; inner ring; roll body and cage. Rolling bearing is easy to use and protect; work is reliable; starting performance is good; bearing capacity is higher at medium speed. Compared with sliding bearing; radial dimension of rolling bearing is larger ; vibration reduction can be poor; low-speed life is low; movement is larger.
The radial bearing in the rolling bearing (primarily receiving the radial force) is generally composed of the inner ring, the outer ring, the rolling body and the roll cage 4. The inner ring is tightly sleeved on the journal and rotates together with the shaft; In the bearing housing hole, the outer circumference of the inner ring and the inner circumference of the outer ring are formed with raceways. When the inner and outer rings are relatively changed; the rolling body is rolled on the raceway of the inner and outer rings; they are separated by the cage; .
The thrust bearing is divided into two tight rings and a live ring. The tight ring and the bushing are tight; the ring is supported on the bearing seat. The ring and the rolling body are generally made of rolled bearing steel with high strength and good wear resistance; the hardness of the outer surface after quenching Should reach HRC60 ~ 65. The cage is made of soft steel stamping; it can also be made of copper alloy cloth bakelite or plastic.
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