To provide a preload inspection method of a wheel bearing device capable of inspecting a preload with high reliability.SOLUTION: A preload inspection method includes: a press-fitting process S02 for press-fitting an inner ring 4 to a small-diameter step portion 3a; a first bearing preload value calculation portion S03 for calculating a first bearing preload value P1 on the basis of an axial negative clearance G1 between a raceway surface and a rolling element after the press-fitting process S02; an after-press-fitting rotational torque measurement process S05 for measuring after-press-fitting rotational torque Ta, after the press-fitting process; a caulking process S06 for caulking the small-diameter step portion to the inner ring after the after-press-fitting rotational torque measurement process; an after-caulking rotational torque measurement process S07 for measuring after-caulking rotational torque Tb after the caulking process; a second bearing preload value calculation process S08 for calculating a second bearing preload value P2 by adding a preload change amount ΔP based on differential torque ΔT between the after-press-fitting rotational torque and the after-caulking rotational torque to the first bearing preload value; and a determination process S09 for determining propriety of the preload on the basis of whether the second bearing preload value is a within a range of a reference value or not.SELECTED DRAWING: Figure 2
【課題】予圧をより高い信頼度で検査することができる車輪用軸受装置の予圧検査方法を提供する。【解決手段】予圧検査方法は、内輪4を小径段部3aに圧入する圧入工程S02と、圧入工程S02後における軌道面と転動体との軸方向負隙間G1に基づき第1の軸受予圧値P1を算出する第1の軸受予圧値算出工程S03と、圧入工程後に圧入後回転トルクTaを測定する圧入後回転トルク測定工程S05と、圧入後回転トルク測定工程後に小径段部を内輪に加締める加締工程S06と、加締工程後に加締後回転トルクTbを測定する加締後回転トルク測定工程S07と、圧入後回転トルクと加締後回転トルクとの差分トルクΔTに基づいた予圧変化量ΔPを第1の軸受予圧値に加えて第2の軸受予圧値P2を算出する第2の軸受予圧値算出工程S08と、第2の軸受予圧値が基準値の範囲内であるか否かにより予圧の適否を判定する判定工程S09とを備える。【選択図】図2
PRELOAD INSPECTION METHOD OF WHEEL BEARING DEVICE
車輪用軸受装置の予圧検査方法
04.03.2022
Patent
Elektronische Ressource
Japanisch
IPC: | F16C SHAFTS , Wellen / B60B VEHICLE WHEELS , Räder für Fahrzeuge / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE / G01M TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES , Prüfen der statischen oder dynamischen Massenverteilung rotierender Teile von Maschinen oder Konstruktionen |