Bearings – Rotary bearing – Antifriction bearing
Patent
1985-12-03
1989-07-18
Werner, David
Bearings
Rotary bearing
Antifriction bearing
F16C 1914
Patent
active
048489360
ABSTRACT:
The present invention relates to a bearing device particularly intended to be used in the type of poker vibrator whose rotor shaft (2) exhibits an eccentric arranged between two needle roller bearings (3,4). Besides being carried in these bearings, the rotor shaft (2) is also carried in a deep-groove ball bearing (5) intended to take up any axial forces acting on the rotor shaft. In order to relieve it from radial forces, the deep-groove bearings (5) is mounted in accordance with this invention with a positive clearance in both the radial and axial directions. The radial clearance can thereby be provided either between the deep-groove ball bearing's outer race (6) and the bearing sleeve (7) or between its inner race (8) and the rotor shaft (2). The purpose of the axial clearance is to permit the radial movement of the deep-groove ball bearing (5) that is the purpose of the radial clearance.
REFERENCES:
patent: 3070412 (1962-12-01), Dorl
patent: 3131006 (1964-04-01), Anderson
patent: 3214224 (1965-10-01), Lash
patent: 3391966 (1968-07-01), Chapman
patent: 3416848 (1968-12-01), Recknagel
patent: 3494353 (1970-02-01), Marich
patent: 3628836 (1971-12-01), Mulready et al.
patent: 4175803 (1979-11-01), Roberts
patent: 4224932 (1980-09-01), Farb
patent: 4337983 (1982-07-01), Hibner
Dynapac Spare Parts Catalogue AL 31-41-51-61, Aug. 1977.
Dynapac Poker Vibrators AL 31-41-51-61.
"High Frequency Poker Vibrators", Dynapac AT, Mar. 1983.
Pokers, Poker Vibrators from Dynapac.
"Range of Concrete Equipment", Dynapac.
Dynapac
Werner David
LandOfFree
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