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; a first bearing preload value calculation process S03 for calculating a first bearing preload value 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 the after-press-fitting rotational torque, after the press-fitting process; a caulking process S06 for caulking a 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 after the caulking process; a second bearing preload value calculation process S08 for calculating a second bearing preload value by adding a preload change amount determined from differential torque between the after-press-fitting rotational torque and the after-caulking rotational torque to the first bearing preload value by using a relationship between the rotational torque and the preload according to an atmospheric temperature; and a determination process S09 for determining propriety of the preload on the basis of whether the second bearing preload value is 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、内輪を圧入する圧入工程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を測定する加締後回転トルク測定工程S07と、雰囲気温度に応じた回転トルクと予圧との関係を用い、圧入後回転トルクと加締後回転トルクとの差分トルクから求めた予圧変化量を第1の軸受予圧値に加えて第2の軸受予圧値を算出する第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 / G01K MEASURING TEMPERATURE , Messen der Temperatur / 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 |