Bearings – Rotary bearing – Hydraulic or pneumatic bearing support
Patent
1981-10-02
1983-07-26
Footland, Lenard A.
Bearings
Rotary bearing
Hydraulic or pneumatic bearing support
308222, F16C 2700
Patent
active
043951406
ABSTRACT:
An apparatus, such as a crane, having a bearing for rotatably connecting two structures and transmitting radial, axial, rotational and moment forces from one to the other. The bearing is separably mounted to one of the structures by threaded fasteners, e.g., bolts, having piston means associated with the fasteners with the hydraulic system being pressurized during operation to establish proper uniform preloading of the fasteners for transmitting the load forces from one structure to the other.
REFERENCES:
patent: 3125226 (1964-03-01), Mork et al.
patent: 3130628 (1964-04-01), Blinn
patent: 3941252 (1976-03-01), Six et al.
patent: 3962950 (1976-06-01), Piroska
patent: 4161344 (1979-07-01), Delarbre et al.
patent: 4248488 (1981-02-01), Sable
patent: 4336968 (1982-06-01), Hibner
SKF Publication entitled "SKF Hydraulic Bolts for Pre-determined Axial and Radial Interference Fit", Publication date unknown but prior to Oct. 2, 1980.
Footland Lenard A.
Rotek Incorporated
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