High quality spherical roller bearings 22336k 22336 bearing

22336  KLT bearings Roller Bearings spherical roller bearings

Spherical roller bearings are designed with double-row raceway inner ring, spherical raceway outer ring and the convex symmetrical rollers. With the same center as the bearings, the spherically formed outer ring raceway can make self alignment, which can adapt the deflection between axis and housing bore.This kind of bearings can take great radial load, suitable for heavy machines used in paper-making, mining, vibration sieve, rolling mill and so on.

Spherical roller bearings operate in arduous conditions. The spherical rollers can be symmetrical or unsym-metrical and are self-aligning in the outer ring sphered raceway. Thus, the possible coaxiality deviations of the supporting bearings as well as shaft bending can be compensated.

 Spherical roller bearings---CA/MB/CC

Models: 222**/223**/230**/231**/232**238**/239**/240**/241**

Dimension: Inner bore diameter ≥100m

                 : Outer bore diameter ≤1500mm

Precision: P0, P6, P5, SPM

Spherical roller bearings are manufactured in the following constructive versions, depending on the bearing size and series:

- Spherical Roller Bearings, tables

- Spherical Roller Bearings - adapter sleeves tables

- Spherical Roller Bearings - withdrawel sleeves tables

 MB design

These bearings have a central fixed rib, an one-piece cage guided on the inner ring rib.

 MA design

These bearings have a central fixed rib and machined cages quided on the inner ring rib.

 C design

These bearings have a central guide rib floating on the inner ring, symmetrical rollerswith largerdimensionssothat the load carrying capacity increases. Special pressed sheet cage. Bearingsofthisdesign areof small and medium sizes.

 CA design

These bearings have side shoulders and central guide rib floating on the inner ring, symmetrical rollers with larger dimensions so that the load carrying capacity increases. They also have an one-piece machined brass cages. This design is available for medium and large-sized bearings.

with Adapter Sleeves

with Withdrawal Sleeves

Tolerances

Spherical roller bearings with both cylindrical and tapered bore, are manufactured in normal tolerance class.

Radial clearance

Spherical roller bearings are generally manufactured with normal radial clearance. At request, they can be manufactured with clearances larger than normal (C3, C4 etc.) or smaller than normal (C2).The limit values of the radial clearance measured on unloaded bearings are in accordance with ISO 5753 and are given in tables 1 and 2.

 Misalignment

Spherical roller bearings allow angular misalignment between the outer ring and inner ring without any in-fluence on the bearing rating life. Under normal loads and operating conditions and when the inner ring rotates, the values of the permissible misalignment depending on the bearing series are given in table 3.

Cages

Small and medium size spherical roller bearings are fitted with pressed sheet or machined brass cages (Y).Bearings of normal design are fitted with machined brass or steel cages guided on the rollers (M), inner ring (MB) or outer ring raceway (MA).

Glass fibre reinforced polyamide 6.6 cages are success-fully used for small and medium size bearings if the operating temperature doesn't exceed +120°C. Large-size bearings are fitted with machined brass cages, CA design.Designs and some technical data are given in table 4.

Axial load for bearings mounted on adapter sleeves

 If the spherical roller bearings are mounted on a smooth shaft using an adapter sleeve, without side support, the axial load carrying capacity depends on the friction be-tween shaft and sleeve.

 Considering that the mounting is correctly done, the permissible axial load can be accurately enough deter-mined using the following equation:

F_{a max} = 3 Bd, kN

where:

F_{a max} - maximum permissible axial load, kN,

B - bearing width, mm,

d - bearing bore diameter, mm.

 Equivalent dynamic radial load

P_r = F_r + Y₁F_a, kN,   for F_a/F_r <=e,

P_r = 0,67 F_r + Y₂F_a, kN,  for F_a/F_r >e,

 The values of the factors depending on the bearing type can be found in bearing tables

 Equivalent static radial load

P_0r = F_r + Y₀F_a, kN

 The value of the factor Yo depending on the bearing type can be found in bearing tables.

Details of spherical roller bearings