Double row tapered roller bearings have the characteristics of strong load-bearing capacity, adjustable clearance, compact structure, high stiffness, and wide application. The specific analysis is as follows:
Load bearing capacity: Double row tapered roller bearings can simultaneously withstand large radial loads and bidirectional axial loads, and their axial load capacity increases with the increase of contact angle (usually 10 ° to 30 °). This characteristic makes it suitable for applications that require bearing composite loads, such as automotive driveshafts, rolling mills, and other heavy machinery. Clearance adjustment: A spacer is installed between the two inner rings or outer rings of the bearing. By changing the thickness of the spacer, the clearance or pre interference can be adjusted to optimize the bearing's load-bearing performance and operational stability. Some double row tapered roller bearings have pre-set clearance before leaving the factory, and users can directly install and use them. Compact structure: Adopting a "back-to-back" or "face-to-face" roller arrangement to make the bearing structure more compact. Among them, in the "back-to-back" configuration, the intersection point of the load line is located outside the bearing centerline, with a larger span, which can reduce the cantilever length of the shaft and improve the rigidity of the cantilever end.
High stiffness: Double row tapered roller bearings provide a rigid bearing arrangement, and optimized roller design and surface smoothness on the edge can promote the formation of a lubricant film, reduce friction and wear, and reduce noise and vibration during operation.
. Widely used: Double row tapered roller bearings are widely used in industries such as machine tools, reducers, automobiles, agricultural machinery, mining, metallurgy, plastic machinery, and heavy machinery, especially in situations that require high load-bearing capacity and rigidity.