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1. (WO2017150544) BEARING WITH SEAL

Pub. No.:    WO/2017/150544    International Application No.:    PCT/JP2017/007837
Publication Date: Sat Sep 09 01:59:59 CEST 2017 International Filing Date: Wed Mar 01 00:59:59 CET 2017
IPC: F16C 33/78
F16C 19/06
F16J 15/3204
Applicants: NTN CORPORATION
NTN株式会社
Inventors: URUI Shouta
潤井 翔太
INAMASU Kazunori
稲増 一剛
WAKUDA Takahiro
和久田 貴裕
Title: BEARING WITH SEAL
Abstract:
A protrusion (152) is formed in a sealing lip (151). An oil passage (170) is formed between the sealing lip (151) and a seal sliding surface (112) that slides in a circumferential direction relative to the protrusion (152), the oil passage communicating across a bearing interior space (160) and the exterior and not allowing foreign substances of a predetermined particle size pass through. As the bearing rotates, lubricating oil in the oil passage (170) is drawn into between the sealing lip (151) and the seal sliding surface (112), and forming of an oil film is facilitated. To prevent burrs from being generated in a distal end (153) of the sealing lip (151), a flat surface (155) is placed between the protrusion (152) and the distal end (153) of the sealing lip (151).