Home>Bearing knowledge>The difference between sliding bearing and rolling bearing

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The difference between sliding bearing and rolling bearing is detailed

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The bearing of the rolling bearing is operated under the tumbling conflict. The rolling bearing is easy to use and protect; the operation is firm; the starting function is good; the bearing capacity is higher at medium speed. Compared with the sliding bearing; the radial dimension of the rolling bearing is larger; Poor; low speed at high speed; large static and dynamic. The radial bearing in the rolling bearing (primarily receiving radial force) is usually composed of the inner ring, the outer ring, the rolling body and the roll cage 4. The journal is rotated together with the shaft; the outer ring is mounted in the bearing housing bore. 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 the raceway of the inner and outer rings. Rolling; they are separated by the cage; prevent conflicts with each other. 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 usually selected to have high strength and resistance. Made of fine-rolled rolling bearing steel; the hardness of the 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.
There are many varieties of rolling bearings.
1. According to the bearing direction, it can be divided into radial bearing (accepting radial force and small axial force), thrust bearing (only accepting axial force) and radial thrust bearing (can accept radial force and axial force together) force).
2, according to the shape of the roll can be divided into ball bearings, roller bearings and needle bearings.
3, according to the operating conditions can be divided into ordinary bearings, high-speed bearings, high-temperature bearings, low-temperature bearings, vacuum bearings, anti-magnetic bearings, corrosion-resistant bearings, fine miniature bearings and extra large bearings. China has various types of rolling bearings dividends B, C, D, E, G 5 accuracy levels; B is the highest precision level; G is the usual precision level; the most widely used.
Rolling bearings are standard parts; they are produced in batches by specialized bearing factories. The elements that need to be considered in the selection and selection are life, load, precision, clearance (radial and axial), limit speed, conflicting torque, centering function, Preload and rigidity, oscillation and noise.
Compared with sliding bearings; the strength of the rolling bearing 1, under normal conditions; the power of the rolling bearing and the liquid dynamic smooth bearing are appropriate; but higher than the mixed smooth bearing, 2, the radial clearance is comparable. Envy wall zinc捎 捎 そ艨捎 そ袅 叮 叮 叮 叮 叮 叮 叮 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 Subject to radial and axial loads; so the bearing combination layout is simple, 5, less cost of smoothing agent; easy to seal; easy to protect, 6, no useful non-ferrous metals, 7, high degree of standardization; batch production; low cost.
Compared with sliding bearings; defects in rolling bearings:
1. The impact load can be poor. 2. The bearing life is lower under high speed and heavy load. 3. Oscillation and noise are large. 4. Radial scale ratio sliding bearing.

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