SKF Bearing 331780 A

Product description of SKF Bearing 331780 A

SKF Bearing 331780 A, TDO design Double row tapered roller bearing, SKF manufactures double row tapered roller bearings in the TDO and TDI designs, in many variants and with different features. Depending on the design, these bearings can accommodate heavy radial loads, axial loads in both directions and have a high degree of stiffness. Double row tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills and machines in the mining industry, e.g. Tunnel-ling machines.

With a wide range of designs to choose from, SKF tapered roller bearings are also customization to match your specific speed, load, contamination, temperature or vibration conditions.

SKF Bearing 331780 A, TDO design Double row tapered roller bearings,SKF Tapered roller bearings feature a cup and cone assembly. The cup is comprised of the outer ring and the cone assembly consists of inner ring, rollers, and cage. This bearing construction accommodates combined loads and provides low friction during operation. By adjusting one single row tapered roller bearing against a second tapered roller bearing and applying a preload, a rigid bearing application can be achieved.

Based on the structural features of a double-row tapered roller bearing (DTRB), a test rig for multi-point temperature measurement was built to investigate the temperature filed characteristics of DTRB under different operating conditions. Firstly, the composition of the test rig and the measuring instruments are described and the loading method is introduced. Secondly, a multi-point temperature measurement method for inner and outer rings of DTRBs is introduced, including the arrangement of the sensors and the signal transmission. Finally, the influence of rotational speed and external load on the circumferential, axial, and radial temperature rise and temperature distribution in a DTRB is studied. Results show that for the stationary bearing outer ring, the temperature rise in the load zone is significantly higher than that in the non-load zone. Under combined load, there are obvious temperature differences in the axial, circumferential, and radial directions of a DTRB.

SKF Bearing 331780 A, TDO design Double row tapered roller bearings, The utility model relates to a double-row tapered roller bearing, which mainly solves the problem that a roller in the existing tapered roller bearing is likely to damage. The double-row tapered roller bearing is characterized by further comprising two inner rings and two lines of tapered roller bearings, wherein the tapered roller bearings are arranged between the inner rings and an outer ring by a retainer, the two lines of tapered roller bearings are symmetrically arranged in the radial direction relative to the outer ring, an included angle is formed between the axial direction of each tapered roller bearing and the axial direction of the outer ring; a locating part is formed in the joint of each inner ring and each tapered roller bearing, each locating part abuts against the end face of each tapered roller bearing; a pressure reducing cavity is arranged between each inner ring and each locating part, and the inner rings are in tight fit with the sides of the tapered roller bearings. By adoption of the pressure reducing cavity.

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