tapered roller large end diameter Dwp

Oversize full cross-tapered roller bearings roller half cone angle quickly select Pei Hongtao (Luoyang Bearing Group Co., Ltd. Technology Center, Luoyang, Henan 471039) Abstract: The full crossed tapered roller slewing bearing roller half cone angle selection is more difficult This paper will pick roller half cone angle of tedious calculations to be simplified lookup table approach, which greatly improves the design efficiency. Keywords: Large bearings; tapered roller bearings; wheel bearings; roller; half cone angle; selected CLC: TH133.33; TH123.1
Document code: B Article ID :1000 -3762 (2004) 01-0006-03 Symbol Description d bearing inner diameter of the bearing outer diameter D T C bearing outer ring bearing the total height height B Basis inner bearing cone height h Face-to-end distance of the outer ring non-benchmark
half cone angle φ roller D
tapered roller large end diameter Dwp
Pitch circle diameter of rollers
ε full complement midnight raceway circumference total clearance Z
Full complement roller bearing turntable is a large number of simultaneous bear large axial load
, Radial load and overturning moment, comprehensive load special structure Cylindrical roller bearing  Under normal circumstances, wheel bearings are with mounting holes, lubricants holes and sealing devices. Crossed tapered roller slewing bearings and crossed cylindrical roller slewing bearings, in addition to a high static load capacity, but because of its preloaded bearings can have greater bearing stiffness and high rotational accuracy is widely used in lifting transport machinery, mining machinery, port machinery, construction machinery and other large slewing ring. Full cross-tapered roller wheel bearings can accommodate roller due to larger quantities, can provide greater capacity and static load bearing stiffness for low speed and heavy conditions used, hm minimum film thickness Δa, Δi assembly work clearance influence quantities ΔQ1, ΔQ2 effect of temperature on the amount ΔR clearance work load impact on the amount of clearance work Δp preload adjustment amount (closed loop) 4 bearing clearance problem in the <280 finishing mill gear unit bearing clearance is achieved actual use of them is particularly important parameter is also affected by external and internal factors constraining the larger argument only on some of the above-mentioned factors were analyzed for different use of the environment, in part by the secondary becomes the dominant factor, here on the shaft architecture, bearing manner, shaft stiffness on the impact of the bearing clearance is not described. A steel rolling mill in aqueous finishing mill reducer used 23038,23032,23030 bearings, application of the above methods of analysis