Metal working – Means to assemble or disassemble – Roller or ball bearing
Reexamination Certificate
2004-06-17
2010-11-23
Chang, Rick K (Department: 3726)
Metal working
Means to assemble or disassemble
Roller or ball bearing
C029S426500, C029S259000, C029S898080, C029S263000, C029S898062, C384S540000
Reexamination Certificate
active
07836581
ABSTRACT:
The invention relates to a device for installing and removing a bearing assembly (3) which consists of a chock in which a trunnion hearing is arranged on a supporting roller stud (1) of a rolling stand. The aim of said invention is to replace said assembly by means of an operationally reliable device without carrying out modifications or large-scale modifications of the supporting roller stud (1), in particular to obtain reproducible mounting forces in order to ensure best long-term wear-less service possible, best possible rotation and easily controlled stripping forces for reliable operation of the rolling stand. The invention also relates to a nut (8) fixed to the roller stud (1) prestressed against the bearing assembly (3). According to said invention, a stripping device (11) can be temporarily coupled to the bearing assembly (3), the hydraulic cylinder (15) thereof resting against the roller stud (1).
REFERENCES:
patent: 5333378 (1994-08-01), Sjobom
patent: 5535517 (1996-07-01), Rode
patent: 199 45 070 (2001-03-01), None
patent: 199 56 942 (2001-05-01), None
patent: 1 072 333 (2001-01-01), None
patent: 1 214 158 (2003-10-01), None
patent: 03/022471 (2003-03-01), None
Keller Karl
Roeingh Konrad
Chang Rick K
Lucas & Mercanti LLP
SMS Siemag Aktiengesellschaft
Stoffel Klaus P.
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