国家/地区
IPC部 C（4）
IPC大类 C08（4）
IPC小类 F16C（4）
IPC C08K003/04（2）
发明人
公开年 2022（2）
申请年 2021（4）
专利权人

Ball used as airsoft ammunition, comprises biodegradable polymer and additives, such as electrostatic charge eliminating additive, density increasing additive, and/or strength/hardness modifying additive added to polymer mass during compounding stage.

VYYRYLAEINEN S

Sealing device used in hub unit of automobile, has elastic member containing crosslinked nitrile rubber and grease.

KUSUNOKI K, UEMOTO T, YOSHIOKA Y

The oil-free self-lubricating bearing, has shaft core and shaft sleeve, outer side of shaft core is connected with inner side of the shaft sleeve, shaft core comprises first end surface, inner column and second end surface, first end surface and inner column are integrally formed.

PENG H

Ball bearing assembly used as power and motion transmission elements, comprises outer ring comprising polymer composite material and having outer raceway, inner ring comprising polymer composite material and having inner raceway, rolling elements comprising glass and cage comprising polymer compound.

GHORPADE U S, GHORPADE P U