42-1005 22320 Spherical Roller Bearings / Bearings Printing Machinery / 22320 K / 22320 CAW33

 Spherical roller definition  

         Spherical roller bearings have two raceways in the inner and the outer ring of the spherical raceway between , Assembling the drum-shaped roller bearings.  

Spherical roller  Brief introduction  

       Spherical roller bearings with two rollers, mainly bear radial load, but also can withstand axial load in either direction. Have a high radial load capacity, especially suitable for heavy loads or vibration to work, but unable to bear the pure axial load. This kind of bearing outer ring raceway is spherical shape, aligning performance is good, can compensate concentricity error.

              There are two rows of symmetrical spherical roller, a common spherical outer ring raceway, inner ring the two bearing axis tilted at an angle raceway has a good self-aligning properties, when the axial force bent or install a different heartis still bearing the normal use, transfer concentric with the bearing dimension series varies, generally allows aligning angle is 1 to 2.5 degrees, the type of bearing load capacity bearings can bear, in addition to radial loadstwo-way axial load, and has good impact resistance, generally self-aligning roller bearings allow lower operating speed.

         Spherical roller bearings divided into symmetrical cross-sectional shape of roller spherical roller and non-symmetrical spherical roller two different structures, asymmetric self-aligning roller bearings are early products, mainly for the host repair services, new designhost rarely use symmetrical self-aligning roller bearings, the internal structure has been completely improved design and parameter optimization, and the early production of the self-aligning roller bearings, can withstand greater axial load, the operation of the bearinglower temperature, it can be adapted to the requirements of high speed, according to the inner ring without ribs and the characteristics of both C-type CA, C-type bearings with a cage can be divided into the inner wall and the usesteel stamping cage, CA type Trane bearing features as compared to the inner ring on both sides of the wall and the car solid to keep the frame in order to improve the lubrication, to provide users with the outer ring with a ring-shaped tank, and threehole aligning roller bearings, bearing rear Code / W33 also be supplied with inner ring hole aligning roller bearings, according to the user's requirements, in order to facilitate customer handling and replacement of bearings, also borealigning tapered roller bearings, tapered bore, taper 1:12, after the code for the K said that in order to meet the requirements of particular user can also provide bearing bore taper 1:30, followed by the code-named K30with tapered bore bearings can be used to lock nut bearing mounted directly on a tapered journal can also use an adapter sleeve or withdrawal sleeve bearing mounted in a cylindrical journal. In order to ensure that harmful slip between the raceway and roller bearing at high speeds to prevent the centrifugal effect, the bearings should be subject to certain minimum radial load size can be estimated:
FR = 0.02C
Where
Fr - minimum radial load N
C-bearing basic dynamic load rating N
Equivalent dynamic load
P = Fr + Y1Fa when Fa / Fr e
P = 0.67Fr + Y2Fa when Fa / Fr e
Where
P-equivalent dynamic load N
Y1, Y2-axial dynamic load factor
Equivalent static load
P0 = Fr + Y0Fa
Where
P0-equivalent static load N
The Y0-axial static load factor

Spherical roller Type

1, Cylindrical bore

2,  Tapered bore  

        Tapered bore taper 1:12 post code for the K-aligning roller bearings (153000 or 113000 type) and 1:30 post code for K30 aligning roller bearings. Such bearing shaft with a conical inner ring axially moving can adjust the radial clearance.

 Spherical roller  Post-code 

         The post code for K, K30 tapered bore spherical roller bearings, mounted in the mating adapter sleeve, then a post-code-named K + H type and K30 + H type bearings. Such bearings can be mounted on the optical axis of the shaft shoulder on the occasion of applications that require frequent mounting and dismounting bearings. In order to improve the performance of bearing lubrication, the bearing outer ring car ring tank and the three hole drilled evenly distributed, then set code for the W33.

Specific classification and Designation:
1, self-aligning roller bearings (20000 CC type)
2, tapered bore spherical roller bearings (20000 CCK type)
3, self-aligning roller bearings (20000 CC/W33 type)
4, tapered bore spherical roller bearing (20000 CCK/W33-type)
5, mounted on an adapter sleeve bore spherical roller bearings (20000 CCK + H0000-type)
6, mounted on an adapter sleeve bore spherical roller bearings (20000 CCK/W33 + H0000-type)

Spherical roller  Application

          Mainly used to maintain frame: sheet steel cage (suffix E), glass fiber reinforced polyamide 66 cage (suffix TVPB), machined solid brass cage (suffix M), vibration occasions stamping steel cage (suffix JPA) .

          Main purpose: paper machinery, deceleration devices, railway vehicle axle, rolling mill gear box bearing seat, rolling mill roller crusher, vibrating screen, printing machinery, woodworking machinery, all kinds of industrial gear, the vertical seat belt aligning bearing.

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Spherical roller Drawing

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