The products of matched single row tapered roller bearings are based on the common dimensions of single row tapered roller bearings. Depending on the application requirements, matching tapered roller bearings are available in different designs and variants:
Depending on the design, paired bearings are suitable for heavy radial and axial loads. The axial load capacity of tapered roller bearings increases with increasing contact angle α. The size of the contact angle is usually between 10° and 30°. The size of the angle is related to the calculation coefficient e: the larger the value of e, the larger the contact angle.
Depending on the design, paired bearings position the shaft axially in both directions, with a specific axial clearance or bearing preload.
Depending on the design, paired bearings provide a relatively stiff bearing arrangement.
Bearings and spacers are matched during production and supplied as complete sets.
The extension lines of each individual bearing raceway meet at the same point on the bearing axis to achieve true rolling and therefore low friction torque during operation.
Optimized roller design and rib surface treatment on each individual bearing rib promotes the formation of a lubricant film, thereby reducing friction. This also reduces frictional heat and flange wear. In addition, the bearings maintain preload better and reduce noise levels during operation.
Basic bearing design compared to conventional straight profile raceways Bearing and crown raceway Logarithmic raceway shape optimizes load distribution along the contact surface, reduces stress peaks at the roller ends and reduces the risk of misalignment and shaft deflection Sensitivity
Optimized surface treatment of the roller and raceway contact surfaces facilitates the formation of a hydrodynamic lubricant film.
The manufacturing tolerances and dimensional accuracy of the rollers integrated in tapered roller bearings are so precise that they are almost identical. This provides optimal load distribution between the rollers, paired bearings, reducing noise and vibration levels, and enables more precise preloading.
Tapered roller bearings typically have a running-in period during which conventionally designed tapered roller bearings experience significant amounts of friction, resulting in wear. This effect will cause the bearing temperature to rise. For the tapered roller bearing design, the friction, wear and friction heat are greatly reduced under the premise that the bearing installation and lubrication are accurate.
