Single Row Tapered Roller Bearings

Single row metric tapered roller bearings are a common type of tapered roller bearings, which are separable. Both the inner and outer rings of the bearing have tapered raceways, and the rollers are in the shape of a truncated cone. The roller and the raceway are in linear contact, which can bear heavier combined radial and axial loads and axial loads. The larger the contact angle, the higher the axial bearing capacity; conversely, the smaller the contact angle, the lower the axial bearing capacity.

The single row metric tapered roller bearing design should extend the contact line between the roller and the inner and outer raceways and then intersect at the same point on the bearing axis for rolling. Single row metric tapered roller shafts mostly use inches.

Single row metric 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.

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 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
  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 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 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). This facilitates mounting, dismounting, and also maintenance inspection routines. Furthermore, the separable components are interchangeable.