Сферический роликовый подшипник NSK 22218

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NSK Spherical Roller Bearing 22218 EAKE4C3:

 

Spherical roller bearings with two rollers, mainly bear radial load, but also can withstand axial load in either direction. A high radial load capacity, especially suitable for heavy loads or vibration, but can not bear the pure axial load. This kind of bearing outer ring raceway is spherical shape, so the good performance of its self-aligning, can compensate concentricity error.

There are two symmetrical spherical roller, there is a common spherical outer ring raceway, the bearing inner ring with two axis tilt

Angle of raceway, aligning with good performance, when the axis force bent or install a different heart is still bearing the normal use, transfer concentric with the bearing size range varies, generally aligning allowed 1 to 2.5 degree angle load bearing capacity of the larger type, in addition to radial loads but also under way outside the role of bearing axial load, with good impact resistance, in general, self-aligning roller bearings allowed working speed than the low.

 

Spherical roller bearings have two rows of symmetrical rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis. The centre point of the sphere in the outer ring raceway is at the bearing axis. And its features:

1.Accommodate misalignment
Spherical roller bearings are self-aligning like self-aligning ball bearings or CARB bearings.

2.High load carrying capacity
Spherical roller bearings are designed to accommodate both heavy radial loads and axial loads in both directions.

3.Long service life
The rollers are manufactured to such tight dimensional and geometrical tolerances that they are practically identical in a roller set. The symmetrical rollers self-adjust, providing optimal load distribution along the roller length and together with the special profile prevent stress peaks at the roller ends.

4.Low friction
Self-guiding rollers keep friction and frictional heat at low levels ( fig. 5 ). A floating guide ring guides unloaded rollers so that they enter the load zone in the optimal position.

 

Cage types:

C(J),EC(J).CA,ECA,CAF,CAFA, and so on.

1.CA: Integral brass cage, double row symmetrical rollers,inner ring ride

2.MA: Integral brass cage, double row symmetrical rollers ,outer ring ride

3.MB: Two piece brass cage,double row asymmetrical rollers, inner ring ride

4.CC: Two piece steel cage, double row symmetrical rollers,inner ring ride

5.CTN1: Double row symmetrical rollers ,nylon cage

6.K: Tapered bore bearing, the taper is 1:12

7.K30: Tapered bore bearing,the taper is 1:3

 

Specifications:

 

d	90mm
D	160mm
B	40mm