Method of manufacturing a bearing washer for thrust bearings and method of manufacturing a thrust bearing

摘要

Manufactured by quench hardening, a bearing washer (11) for a thrust bearing (10) inexpensive and excellent in durability is used without being subjected to grinding after quenching. In a bearing washer group (11) including a plurality of bearing washers (11) for the thrust bearing (10), when camber/waviness of each bearing washer (11) constituting the bearing washer group (11) that is randomly extracted is measured, a value obtained by adding a value three times as large as standard deviation of camber/waviness to an average value thereof is at most 40µm.