Fluid dynamic bearing motor including plastic component
View Patent ↗Provided herein is a motor including a plastic component; a stationary component having a thrustplate; and a rotatable component having a sleeve and a counterplate, wherein the plastic component is positioned outside the sleeve, and wherein the thrustplate and the counterplate are positioned to form a fluid dynamic bearing (“FDB”) at a top portion of the sleeve. Also provided is a motor comprising a plastic component; a stationary component comprising a thrustplate; and a rotatable component comprising a sleeve; wherein the plastic component is affixed to the sleeve, and wherein the thrustplate and the plastic component are positioned to form a FDB. Also provided is a motor comprising a plastic component; a stationary component comprising an inner component; and a rotatable component comprising the plastic component and a supporting means for supporting the inner component, wherein the inner component and the supporting means are positioned to form a FDB.
1. A motor comprising:
a plastic component comprising a supporting means;
a stationary component comprising a shaft; and
a rotatable component comprising the plastic component and the supporting means for supporting the shaft,
wherein the shaft and the supporting means are positioned to form a fluid dynamic bearing.
2. The motor of claim 1 , wherein the shaft comprises a single cone or dual cone.
3. The motor of claim 2 , further comprising a top cover affixed to the shaft.
4. The motor of claim 1 , wherein the fluid dynamic bearing comprises a journal bearing.
5. The motor of claim 1 , wherein the supporting means is affixed to the plastic component, and wherein the plastic component is a hub for at least one disc.
6. The motor of claim 1 , wherein the supporting means is integral with the plastic component, and wherein the plastic component is a hub for at least one disc.
7. The motor of claim 1 , wherein grooves are molded into the surface of the plastic component, and wherein the grooves are asymmetric grooves or symmetric grooves.