Crash stop that includes silicone rubber for a data storage device, and related articles, systems, and methods
Data storage devices that include one or more crash stops that include cured, silicone rubber. Related articles (e.g., shock-absorbing member) that include cured, silicone rubber for crash stops and methods of making shock-absorbing members that include cured, silicone rubber.
1 . A data storage device comprising:
a housing comprising:
a base; and
a cover mounted to the base;
a head-stack assembly rotatably mounted to the base, wherein the head-stack assembly comprises one or more radially-extending arms rotatable about an axis; and
at least one crash stop disposed within the housing, wherein at least a portion of the at least one crash stop comprises an outer region comprising at least one cured, silicone rubber, wherein the at least one cured, silicone rubber does not include non-oxygen heteroatoms and non-silicon heteroatoms, and wherein the at least one crash stop is positioned in the housing so that at least one of the one or more radially-extending arms contact at least a portion of the outer region of the at least one crash stop if the one or more radially-extending arms rotate to a pre-determined limit.
2 . The data storage device of claim 1 , wherein the non-oxygen heteroatoms and non-silicon heteroatoms are chosen from nitrogen, sulfur, phosphorus, and combinations thereof.
3 . The data storage device of claim 1 , wherein the at least one cured, silicone rubber does not include double covalent bonds, and wherein the at least one cured, silicone rubber does not include triple covalent bonds.
4 . The data storage device of claim 1 , wherein the at least one cured, silicone rubber does not include a functional group chosen from —OH, —CH—O, —COOH, and combinations thereof.
5 . The data storage device of claim 1 , wherein the at least one cured, silicone rubber is chosen from high-temperature vulcanized (HTV) silicone rubber, room-temperature vulcanized (RTV) silicone rubber, vulcanized liquid silicone rubber (LSR), and combinations thereof.
6 . The data storage device of claim 1 , wherein the at least one cured, silicone rubber is chosen from high-temperature vulcanized (HTV) silicone rubber, one-component room-temperature vulcanized (RTV-1) silicone rubber, two-component room-temperature vulcanized (RTV-2) silicone rubber, and combinations thereof.
7 . The data storage device of claim 1 , wherein the at least one cured, silicone rubber is chosen from one or more dialkyl silicone rubbers, vinylmethyl silicone rubber, phenylmethyl silicone rubber, phenylvinylmethyl silicone rubber, one or more fluoro silicone rubbers, and combinations thereof.
8 . The data storage device of claim 7 , wherein the at least one cured, silicone rubber comprises two or more cured, silicone rubbers, wherein at least one of the two or more cured, silicone rubbers comprises a functional group chosen from phenyl, vinyl, and combinations thereof, wherein the at least one of the two or more cured, silicone rubbers is present in an amount of 20% or less by total weight of the two or more cured, silicone rubbers.
9 . The data storage device of claim 1 , wherein the at least one cured, silicone rubber is chosen from at least one silicone rubber having a repeating unit —R 2 SiO—, wherein each R is independently hydrogen or an alkyl group.
10 . The data storage device of claim 1 , wherein the at least one cured, silicone rubber is chosen from MQ silicone rubber, PMQ silicone rubber, VMQ silicone rubber, PVMQ silicone rubber, FVMQ silicone rubber, and combinations thereof, according to ASTM D1418.
11 . The data storage device of claim 1 , wherein the at least one cured, silicone rubber comprises one or more additives present in an amount of 20% or less by total weight of the at least one cured, silicone rubber.
12 . The data storage device of claim 1 , wherein the at least one crash stop comprises:
a post mounted to a portion of the data storage device; and
a shock-absorbing member mounted to the post, wherein the shock-absorbing member comprises the at least one cured, silicone rubber, and wherein the shock-absorbing member comprises the outer region that the at least one of the one or more radially-extending arms can contact if the one or more radially-extending arms rotate to a pre-determined limit.
13 . The data storage device of claim 12 , wherein the shock-absorbing member comprises at least a hollow cylindrical body that surrounds a vertical portion of the post.
14 . A computing system comprising a plurality of data storge devices according to claim 1 .
15 . A data storage device comprising:
a housing comprising:
a base; and
a cover mounted to the base;
a head-stack assembly rotatably mounted to the base, wherein the head-stack assembly comprises one or more radially-extending arms rotatable about an axis; and
at least one crash stop disposed within the housing, wherein at least a portion of the at least one crash stop comprises an outer region comprising at least one cured, silicone rubber, wherein the at least one cured, silicone rubber does not include double covalent bonds, wherein the at least one cured, silicone rubber does not include triple covalent bonds, and wherein the at least one crash stop is positioned in the housing so that at least one of the one or more radially-extending arms contact at least a portion of the outer region of the at least one crash stop if the one or more radially-extending arms rotate to a pre-determined limit.