Functional analysis of spherical roller bearings

Source: Bearing network time: 2014-09-16

/*250*250 was created on 2017/12/25*/ var cpro_id = 'u3171089';

The product characteristic spherical roller bearing has two rows of spherical rollers; the outer ring has a concave spherical raceway; the inner ring has two concave raceways which are oblique to the bearing axis; the center of curvature of the outer ring raceway and the bearing The center. The spherical roller bearing is self-aligning; it is not affected by the misalignment of the shaft and the bearing housing or the deflection of the shaft; it can compensate for the concentricity error caused by this. In addition to receiving radial load, this type of bearing It can also accept two-way axial load and its combined load; the bearing capacity is larger; together it has better anti-sensation and impact resistance.
Spherical roller bearings are mainly used in various mechanical equipment such as steel, mining, paper, ship, textile machinery, coal mill, electric power, etc.; they are the most widely used type of bearings in the machinery industry.
â— Product classification ZWZ spherical roller bearings can be divided into the following types:
Cylindrical hole spherical roller bearing tapered hole spherical roller bearing oscillating sieve with spherical roller bearing split type spherical roller bearing cylindrical hole spherical roller bearing according to the inner ring with or without ribs and selected support frame The same; can be divided into CA type and C type. CA type spherical roller bearing inner ring has two small ribs at both ends; the center has no ribs; the support frame is a two-prong one-piece layout physical support frame; the information is usually copper Or carbon steel; the layout bearing is used in large and extra large bearings. The inner ring of C-type spherical roller bearing does not have large and small ribs; the roller is â€œself-guidedâ€; the center is the active retaining ring; The frame is a stamping plate holder; the roller length of the layout bearing is added; the additional load is improved; and the higher limit speed and lower collision loss are also achieved.
Conical bore spherical roller bearings have the characteristics of cylindrical bore spherical roller bearings; but the inner bore is a tapered bore; the conventional taper is 1:12; its type is the basic type of bearing plus K, but the taper of 240 and 241 series bearings It is 1:30; its type is the basic type of bearing and K30 is added. The tapered hole bearing can be directly mounted on the tapered journal by nut; it can also be fixed on the cylindrical shaft by using the adapter sleeve or the push sleeve.
The new anti-oscillation spherical roller bearing for spherical roller bearings for oscillating screens; it is a new layout bearing specially developed by ZWZ for the oscillating machine type mainframe; it is also suitable for common mechanical equipment. Its function: high bearing capacity and resistance Impact, anti-oscillation, small conflict, low temperature rise, long service life.
The basic shape is selected; the inner ring has a fixed middle rib; the axial force can be accepted, the special layout type is adopted for the bracket; the inner and outer diameters are bidirectionally guided; the guiding gap is controlled, and the movement of the bracket and the inner and outer rings is controlled. ; can be anti-vibration and vibration reduction.
Spherical roller bearings for oscillating screens are marked with the rear code VB.
Split spherical roller bearings This type of bearing is primarily used for difficult-to-touch bearing orientations; or in the case of non-separable bearings; and in situations where it takes a lot of time and manpower to protect or replace and incur valuable capital costs, etc. For example, crankshaft or long axis.
ZWZ can supply differently-distributed spherical roller bearings according to the needs of users. It is suitable for the needs of the device; the bearings usually use split inner and outer rings; wide inner rings have clamping rings on both sides; The ground plays a complete set and cooperation effect.
Split spherical roller bearings are marked with the rear code D. â– The basic dimensions of the scale-size ZWZ spherical roller bearings are listed in the bearing scale data sheet;
Inner diameter scale: 30mm ~ 1800mm
Outer diameter scale: 68mm ~ 2180mm
Width scale: 20mm ~ 530 mm
â—† The precision of ZWZ spherical roller bearing products has P0 and P6 grades. For users with special needs, P5 grade products can also be processed. The public service is in accordance with GB307.
â–² Radial clearance ZWZ spherical roller bearing has C2, standard (CN), C3, C4 and C5 internal clearance; all coincide with GB4604. Conical hole spherical roller bearing with C3 clearance as the specification clearance. The values â€‹â€‹are for unmounted and unloaded bearings.
Bearings with a value greater than or less than the clearance specification can also be produced according to the user's requirements. The spherical roller bearing for the oscillating screen is the C4 group clearance.
â˜… Adhere to the CA type spherical roller bearing; the bracket is usually made of solid brass, bronze or carbon steel; the C-type spherical roller bearing; the bracket is usually selected from the steel plate.
If you need a non-standard layout to adhere to the bearing; you can contact ZWZ beforehand.
â– Equivalent dynamic load when Fa/Fr â‰¤ e;
P=Fr+Y1 Fa
When Fa/Fr>e;
Pr=0.67Fr+Y2 Fa
â˜… Equivalent static load P0=Fr+Y0Fa

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