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US 6,606,224 B2Granted
Cartridge bearing with frictional sleeve
AssigneeSeagate Technology LLC
InventorsAaron Steve Macpherson, Rick K. Thompson, Gary F. Kelsic, Robert A. Alt
Life of this patent
Estimating the term…
Abstract
The outer surface of the cartridge sleeve is provided with features which increase the frictional coefficient between the cartridge sleeve and a tolerance ring placed around the cartridge. The cartridge and ring are then press-fit into the actuator bore together. The increased friction between the cartridge and ring prevents slip between them, eliminating the need to increase compressive forces between the ring and the bore and bearing.
Claims11
An actuator mounting assembly, comprising:
- a bearing cartridge having a shaft and a sleeve rotatable about the shaft, the cartridge being configured to be positioned in a bore within the actuator;
- a retention sheet configured to be positioned between the sleeve and a surface of the bore;
- and
- at least one feature positioned between the shaft and the retention sheet configured to prevent relative movement between the sleeve and the retention sheet.
1 more element
A disc drive, comprising:
- a housing;
- an actuator having a bore therein;
- a bearing cartridge fixed to the housing and positioned within the bore, the cartridge having an axis of rotation;
- a resilient element positioned between the cartridge and a surface of the bore;
- and
- at least one frictional element associated with the cartridge and contacting the resilient element so as to prevent all axial movement of the actuator relative to the cartridge.
3 more elements
A disc drive comprising:
- a bearing cartridge;
- an actuator connected to the cartridge so as to be rotatable about an axis;
- and
- means for restricting axial movement of the actuator relative to the cartridge.
1 more element
Dependencies are inferred from the claim text.