Single Row Tapered Roller Bearings

ALF single row tapered roller bearings 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 e (from the product table): the larger the value of e, the larger the contact angle.

Single Row Tapered Roller Bearings

Showing 17–32 of 62 results

Designation Bore diameter Outside diameter Width, total Basic dynamic load rating Limiting speed
[mm] [mm] [mm] [kN] [r/min]
30215 75 130 27.25 171 5 000
30216 80 140 28.25 184 4 800
30217 85 150 30.5 216 4 300
30218 90 160 32.5 240 4 000
30219 95 170 34.5 266 3 800
30220 100 180 37 304 3 600
30221 105 190 39 333 3 400
30222 110 200 41 327 3 200
30224 120 215 43.5 417 3 000 r/min
30226 130 230 43.75 451 2 800 r/min
30226 130 230 43.75 451 2 800 r/min
30228 140 250 45.75 451 2 600 r/min
30230 150 270 49 455 2 400 r/min
30232 160 290 52 566 2 200 r/min
30234 170 310 57 657 2 000 r/min
30236 180 320 57 629 2 000 r/min

Features and benefits

  • Low friction
    The optimized roller end design and surface finish on the flange promote lubricant film formation, resulting in lower friction. This also reduces frictional heat and flange wear. In addition, the bearings can better maintain preload and run at reduced noise levels.
  • Long service life
    The crowned raceway profiles of basic design bearings and the logarithmic raceway profiles of ALF Explorer bearings optimize the load distribution along the contact surfaces, reduce stress peaks at the roller ends, and reduce the sensitivity to misalignment and shaft deflection compared with conventional straight raceway profiles.
  • Enhanced operational reliability
    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 ALF 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 ALF tapered roller bearing designs, friction, frictional heat and wear are significantly reduced, provided the bearings are mounted and lubricated correctly.
  • Separable and interchangeable
    The inner ring with roller and cage assembly (cone) can be mounted separately from the outer ring (cup). Furthermore, the separable components are interchangeable. This facilitates mounting, dismounting and also maintenance inspection routines.