AABB Trading LLC
  • AddressVia Juri Gagarin 25698 Ellera Umbra Perugia
  • Factory AddressVia Juri Gagarin 25698 Ellera Umbra Perugia
  • Phone(Working Time)075 51726159
  • Phone(Nonworking Time)075 51726159
  • Fax075 51726159

Company Profile

Tapered roller bearings have tapered inner and outer ring raceways as well as tapered rollers. They are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads. The projection lines of the raceways meet at a common point on the bearing axis  to provide a true rolling action and therefore low frictional moments during operation. The axial load carrying capacity of tapered roller bearings increases with increasing contact angle α. The size of the contact angle, which is usually between 10° and 30°, is related to the calculation factor : the larger the value of e, the larger the contact angle.

Company Details

  • Tapered Roller Bearings
  • Tapered Roller Bearings
  • 987
  • 1236
  • 2001
  • 2011996300486220.256


Bearing features
Low friction
The maximized roller end layout and surface coating on the flange advertise lubricant film development, causing lower rubbing. This likewise decreases frictional heat and also flange wear. Additionally, the bearings can better maintain preload and also perform at minimized sound levels.
Long service life
The crowned raceway profiles of fundamental layout bearings and also the logarithmic raceway accounts of AABB Trading LLC Explorer bearings enhance the lots circulation along the contact surface areas, reduce anxiety tops at the roller finishes, and also reduce the sensitivity to misalignment and shaft deflection compared with traditional straight raceway profiles.
Improved operational integrity
Optimized surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film.
Consistency of roller profiles and sizes
The rollers incorporated in AABB Trading LLC tapered roller bearings are manufactured to such close dimensional and geometrical tolerances that they are practically identical. This provides optimal load distribution, reduces noise and vibration, and enables preload to be set more accurately.
Rigid bearing application
A single row tapered roller bearing is typically adjusted against a second tapered roller bearing. By applying a preload, a rigid bearing application can be achieved.
Running-in period with reduced temperature peaks
Tapered roller bearings typically have a running-in period, during which a conventional design tapered roller bearing experiences a significant amount of friction, resulting in wear. This effect is noticed as a temperature spike. With AABB Trading LLC tapered roller bearing designs, friction, frictional heat and wear are significantly reduced, provided the bearings are mounted and lubricated correctly.
Separable and interchangeable
Depending on the design, tapered roller bearings are separable and components of same-sized bearings are fully interchangeable. For example, single row tapered roller bearings are separable, i.e. the inner ring with roller and cage assembly (cone) can be mounted separately from the outer ring (cup). This facilitates mounting, dismounting and also maintenance inspection routines.


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