Needle bearing with heat conduction and heat dissipation structure

Abstract

The invention relates to the technical field of needle bearings, in particular to a needle bearing with a heat conduction and heat dissipation structure. The needle bearing comprises an inner ring and an outer ring, a support frame is arranged between the inner ring and the outer ring, a plurality of uniformly distributed fixing frames are arranged on the support frame, and needle rollers are arranged on the fixing frames. Through the arrangement of air holes and heat conduction holes, air in the needle rollers flows, heat generated by the needle rollers is guided through air flowing, the needle rollers can rapidly dissipate heat, continuous use of the needle roller bearing is facilitated, heat generated by friction between the needle rollers and the fixing frame can be diffused to the heat dissipation area through heat dissipation holes, heat dissipation through the heat dissipation area is facilitated, radiating fins can increase the contact area between the heat dissipation area and air and improve the heat dissipation effect, the design changes the condition that much heat is easily accumulated when a traditional needle bearing rotates, the heat is guided, the needle bearing can rapidly dissipate heat, and therefore the service life of the needle bearing is prolonged.

Description

technical field [0001] The invention relates to the technical field of needle roller bearings, in particular to a needle roller bearing with a heat conduction and heat dissipation structure. Background technique [0002] Needle roller bearings are roller bearings with cylindrical rollers. The rollers are thin and long relative to their diameters. Such rollers are called needle rollers. Despite having a small cross-section, the bearing still has a high load-bearing capacity. Needle roller bearings are equipped with thin and long rollers, so the radial structure is compact. When the inner diameter size and load capacity are the same as other types of bearings, the outer diameter Smallest, especially suitable for support structures with limited radial installation dimensions. [0003] Needle roller bearings will generate more heat due to friction during actual use, and a large amount of heat will accumulate, which will easily cause the bearing ring to expand due to heat, make ...

AI Technical Summary

Problems solved by technology

[0003] Needle roller bearings will generate more heat due to friction during actual use, and a large amount of heat will accumulate, which will easily cause the bearing ring to expand due to heat, make the needle roller bearing move, or deform the needle roller bearing, which will affect the continuous use of the needle roller bearing, resulting in Reduced service life of needle roller bearings

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