Tapered Roller Bearings

Single Row Inch Size Tapered Roller Bearings

The single row inch tapered roller bearing is a common tapered roller bearing, which belongs to the separable bearing. The inner and outer rings of the bearing have tapered raceways, and the rollers are in the shape of a truncated cone. The rollers are in line contact with the raceways and can bear heavier radial and axial combined loads and axial loads. The larger the contact angle, the higher the axial load capacity; conversely, the smaller the contact angle, the lower the axial load capacity.

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The single row inch tapered roller bearing is a standard tapered roller bearing, which belongs to the separable bearing. The inner and outer rings of the bearing have tapered raceways, and the rollers are in the shape of a truncated cone. The rollers are in line contact with the raceways and can bear heavier radial and axial combined loads and axial loads. The larger the contact angle, the higher the axial load capacity; conversely, the smaller the contact angle, the lower the axial load capacity.

Single row inch tapered roller bearings should be designed to extend the contact line between the rollers and the inner and outer raceways and then roll at the same point on the bearing axis.

Bearing Parameters

Bearing NO. Boundary dimensions
(mm)
Mass
(kg)
HEPT d D T B
A2031/A2126 7.937 31.991 10.008 10.785 0.05
A2037/A2126 9.525 31.991 10.008 10.785 0.05
A4044/A4138 11.112 34.988 10.998 10.988 0.05
A2047/A2126 11.987 31.991 10.008 10.785 0.04
A4049/A4138 12.680 34.988 10.998 10.988 0.05
A4050/A4138 12.700 34.988 10.998 10.988 0.05
00050/00150 12.700 38.100 13.495 14.072 0.08
A4059/A4138 14.989 34.988 10.998 10.988 0.04
L21549/L21511 15.875 34.988 10.998 10.998 0.06
A6062/A6157 15.875 39.992 12.014 11.153 0.08
11590/11520 15.875 42.862 14.288 14.288 0.10
17580/17520 15.875 42.862 16.670 16.670 0.12
03062/03162 15.875 41.275 14.288 14.681 0.09
05062/05185 15.875 47.000 14.381 14.381 0.14
09062/09194 15.875 49.225 23.020 21.539 0.21
21063/21212 15.875 53.975 22.225 21.839 0.25
09062/09195 15.875 49.225 19.845 21.539 0.19
HM81649/HM81610 15.987 46.975 21.000 21.000 0.20
A6067/A6157A 16.993 39.982 12.014 11.153 0.08
A6067/A6157 16.993 39.992 12.014 11.153 0.08

Series of Single row inch tapered roller bearings

Popular types of Single row inch tapered roller bearings:

  • A2031/A2126
  • A2037/A2126
  • A4044/A4138

Features of single row inch tapered roller bearings

  • Low friction
    The flange’s optimized roller end design and surface finish 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 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
    The 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 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 inch 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 significant friction, resulting in wear. This effect is noticed as a temperature spike. With a tapered roller bearing design, 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). This facilitates mounting, dismounting, and also maintenance inspection routines. Furthermore, the separable components are interchangeable.

Single row inch size tapered roller bearings application

Single row metric tapered roller bearings are widely used in mining, petroleum, heavy machinery, wind power, engineering machinery, and other industries.