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Spherical Roller Bearing Has A Good Anti-shock Resistance
- Oct 17, 2017 -

Spherical roller bearings with two rows of spherical roller, the outer ring has a common concave spherical roller, the inner ring with two bearing axis tilt angle of the concave raceway, outer ring raceway center of curvature and bearing center The Spherical roller bearings are self-aligning, without the shaft and the bearing box misalignment or shaft deformation deflection, can compensate for the resulting concentricity error. In addition to radial bearing load, but also can withstand two-way axial load and its combined load, bearing capacity, and has a good anti-vibration, impact resistance.

Spherical roller bearings with self-aligning ball bearings with the same self-aligning function. Shaft, the shell appears when the deflection occurs. Can automatically adjust, do not increase the bearing burden. Spherical roller bearings can be applied to heavy load, impact load situation. The inner diameter of the inner diameter is the bearing of the tapered bore, which receives the radial load and the axial load in both directions.

Spherical roller bearing performance characteristics:

1, spherical roller bearing outer ring and bearing housing shell hole should not be used with interference, the inner ring and journal with the too tight, requiring the use of nuts in the installation should be adjusted to make it more flexible Axial displacement. Because of the use of interference with the spherical roller bearings, easy to make the bearing contact angle changes, resulting in uneven bearing load distribution, causing high temperature rise. Therefore, this type of bearing inner and outer ring and journal and bearing housing hole with the installation, generally should be the thumb with both hands can just push the journal and the shell hole for the best.

2, for the installation of spherical roller bearings axial clearance, the journal can be used to adjust the nut, adjust the gasket and the bearing hole hole, or with preload spring and other methods to adjust. The size of the axial clearance, with the installation of the bearing arrangement, the distance between the bearings, shaft and bearing the material, can be determined according to working conditions. For high-load high-speed self-aligning roller bearings, adjust the clearance, you must consider the impact of temperature rise on the axial clearance, the temperature rise caused by the reduction of the amount of clearance included, that is, The gap should be adjusted appropriately. For low speed and vibration bearing, should be taken without clearance installation, or the application of preload load. The purpose is to make the spherical roller bearings roller and raceway to produce good contact, the load evenly distributed to prevent the roller and raceway by the impact of vibration was destroyed. After adjustment, the size of the axial clearance is checked with a micrometer. Method is to first fixed the dial gauge in the fuselage or bearing seat, so that the micrometer contact with the axis of the smooth surface of the shaft, along the axis of the right and left axis, the maximum amount of movement of the needle is the axial clearance value.

Spherical roller bearings have four major advantages:

1, radial load capacity. Can be installed directly. Or with an adapter sleeve, the mounting cartridge is mounted on the cylindrical shaft. Hold the use of steel stamping cage, polyamide forming brackets and copper alloy car cage.

2, can withstand a certain axial load. This type of bearing outer ring raceway is spherical, spherical roller bearings can withstand large radial load. It has a self-aligning performance, when the shaft bearing can still work. Bending or tilting so that the inner ring center line and the outer ring center line relative tilt does not exceed 1 ° 2.5 °.

3, with two rows of spherical roller. The outer ring has a common concave spherical roller, the inner ring has two inclined angle with the bearing axis of the concave raceway, outer ring raceway center of curvature and bearing center. Spherical roller bearings are self-aligning, without the shaft and the bearing box misalignment or shaft deformation deflection, can compensate for the resulting concentricity error.

4, in addition to bear radial load, but also to withstand the two-way axial load and its combined load. Bearing capacity, but also has a good anti-vibration, impact resistance. Spherical roller bearings are mainly used in steel, mining, paper, shipbuilding, textile machinery, coal mill, power and other industries of various machinery and equipment, machinery industry is the most widely used in a class of bearings.

Spherical roller bearings have a wide range of advantages, spherical roller bearings are widely used, and are mainly used in papermaking machinery, deceleration devices, railway vehicle axles, rolling mill gear box bearing, rolling mill roll, crusher, Printing machinery, woodworking machinery, all kinds of industries with reducer, vertical seat with self-aligning bearings.