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 NEW LA JOLLA KNIFE 60* WEDGE COMPONENT RH HEAD ONLY US $9.95 
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 NEW LA JOLLA KNIFE 52* WEDGE COMPONENT RH HEAD ONLY US $9.95
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 42 BRAND NEW TOURWOOD SHALLOWFACE 19* #5 WOOD COMPONENT HEADS PREMIUM SPRINGFACE US $84.95
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 42 BRAND NEW TOURWOOD SHALLOWFACE 23* #7 WOOD COMPONENT HEADS PREMIUM SPRINGFACE US $84.95
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 New Big Power 460 Titanium 9 degree loft 460cc Golf Component Head Right Hand US $29.95
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 NEW FORTIFIED F35 WHITE TITANIUM 460cc DRIVER GOLF CLUB COMPONENT HEAD ONLY US $64.95
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 NEW SVG GOLF INFERNO III DRIVER/WOOD COMPONENT HEAD SET US $85.50
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 .370 I Drive RESCUE HYBRID BURNER Golf Component UTILITY IRON HEAD(S) #2-LW US $18.99
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 Integra Cryonic B-Ti 400 cc 10* Driver Head New Component US $32.99
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 TURBO POWER Z 5 431 SS IRON COMPONENT SET HEADS LH US $39.99
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 TURBO POWER API CARBON TI DRIVER COMPONENT HEAD RH US $27.99
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 TURBO POWER Z TOUR 3+ IRON COMPONENT SET HEADS RH US $39.99
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 TURBO POWER FIRE 09 PLUS TI DRIVER COMPONENT HEAD RH US $32.99
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 TURBO POWER RI5 FAIRWAY WOOD COMPONENT HEAD RH 17-4 SS US $17.99
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 TURBO POWER CAPTURE PGR TI DRIVER COMPONENT HEAD RH US $28.49
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 TURBO POWER PALMDALE PUTTER COMPONENT RED WHITE BLACK HEAD LH STAINLESS 350G US $24.99
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 TURBO POWER TI11X TITANIUM DRIVER COMPONENT HEAD RH NEW WHITE BLACK US $64.99
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 TURBO POWER LAZER X IRON COMPONENT SET HEADS RH 431 SS US $64.99
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 TURBO POWER TI 11 FAIRWAY WOOD COMPONENT HEAD RH US $27.99
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 TURBO POWER RELIABLE OL HYBRID COMPONENT HEAD RH US $11.99
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 TURBO POWER XPI TITANIUM DRIVER COMPONENT HEAD RH US $27.49
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 TURBO POWER XPI 2 HYBRID COMPONENT HEAD RH 431 SS US $16.99
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 TURBO POWER Z PLUS 3 TITANIUM DRIVER COMPONENT HEAD LH US $23.99
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 TURBO POWER XR KOMO TITANIUM DRIVER COMPONENT HEAD RH US $27.49
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 TURBO POWER HICORE TITANIUM DRIVER COMPONENT HEAD RH US $23.99
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 TURBO POWER FBS FAIRWAY WOOD COMPONENT HEAD RH US $27.99
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 TURBO POWER FIRE 3.0 FAIRWAY WOOD COMPONENT HEAD RH US $25.99
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 TURBO POWER Z 10 STAINLESS HYBRID COMPONENT HEAD RH US $11.99
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 TURBO POWER XPI 2 TITANIUM DRIVER COMPONENT HEAD RH US $34.99
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 TURBO POWER BIG WIDE BODY IRON COMPONENT SET HEADS RH US $39.99
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 TURBO POWER SPIRIT PUTTER COMPONENT WHITE BLACK HEAD LH US $24.99
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 TURBO POWER TUATARA PUTTER COMPONENT STAINLESS HEAD RH US $13.49
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 TURBO POWER TI 7 460 TITANIUM DRIVER COMPONENT HEAD RH US $25.99
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 TURBO POWER TI 7 MAX TITANIUM DRIVER COMPONENT HEAD RH US $34.99
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 TURBO POWER TI7 DRIVE TITANIUM DRIVER COMPONENT HEAD RH US $25.99
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 TURBO POWER SPIRIT 410G BELLY PUTTER COMPONENT WHITE BLACK HEAD LH US $24.99
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 TURBO POWER ZI5 FAIRWAY WOOD COMPONENT HEAD RH US $16.99
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 TURBO POWER API CARBON FAIRWAY WOOD COMPONENT HEAD RH US $12.99
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 TURBO POWER Z II PLUS IRON COMPONENT SET HEADS RH US $39.99
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 TURBO POWER TI 11 TITANIUM DRIVER COMPONENT HEAD LH US $59.99
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 TURBO POWER TUATARA PUTTER COMPONENT STAINLESS HEAD LH US $13.49
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 TURBO POWER FIRE 09 PLUS FAIRWAY WOOD COMPONENT HEAD RH US $18.99
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 TURBO POWER R20C 431 SS IRON COMPONENT SET HEADS LH US $39.99
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 TURBO POWER SZ-7 PUTTER COMPONENT STAINLESS HEAD LH US $24.99
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 TURBO POWER XPI2 FAIRWAY WOOD COMPONENT HEAD RH 17-4 SS US $18.99
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 TURBO POWER CAPTURE II TI DRIVER COMPONENT HEAD RH US $26.99
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 TURBO POWER TI 11 FAIRWAY WOOD COMPONENT HEAD LH US $27.99
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 TURBO POWER CZ 1400 WEDGE 431 SS COMPONENT HEAD RH US $10.99
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 TURBO POWER LAZER X FAIRWAY WOOD COMPONENT HEAD RH US $19.99
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 TURBO POWER XP II SPEED FAIRWAY WOOD COMPONENT HEAD RH US $14.99
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 TURBO POWER SPIRIT 410G BELLY PUTTER COMPONENT WHITE BLACK HEAD RH US $24.99
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 TURBO POWER H R G ACTION TI DRIVER COMPONENT HEAD RH US $23.99
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 TURBO POWER LAZER XL HYBRID COMPONENT HEAD RH 431 STAINLESS US $19.99
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 TURBO POWER TI700 TITANIUM DRIVER COMPONENT HEAD LH US $25.99
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 TURBO POWER LAZER XL IRON COMPONENT SET HEADS RH 431 STAINLESS US $64.99
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 TURBO POWER XPI 24 IRON 431 SS COMPONENT SET HEADS LH US $39.99
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 TURBO POWER LAZER X HYBRID COMPONENT HEAD RH 431 SS US $17.99
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 TURBO POWER ZI5 IRON 431 SS COMPONENT SET HEADS RH US $49.99
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 TURBO POWER XP II SPEED HYBRID COMPONENT HEAD RH 431 SS US $13.99
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 TURBO POWER PALMDALE PUTTER COMPONENT RED WHITE BLACK HEAD RH STAINLESS 350G US $24.99
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 TURBO POWER LAZER XL FAIRWAY WOOD COMPONENT HEAD RH US $21.99
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 TURBO POWER XP KOMO TITANIUM DRIVER COMPONENT HEAD RH US $27.49
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 TURBO POWER CAPTURE PGR HYBRID COMPONENT HEAD RH US $11.99
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 TURBO POWER STRIKER TITANIUM DRIVER COMPONENT HEAD RH US $23.99
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 TURBO POWER Z TOUR 3+ IRON COMPONENT SET HEADS LH US $39.99
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 TURBO POWER Z PLUS 3 TITANIUM DRIVER COMPONENT HEAD RH US $23.99
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 TURBO POWER TI700 TITANIUM DRIVER COMPONENT HEAD RH US $25.99
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 TURBO POWER V 90 PUTTER COMPONENT STAINLESS HEAD LH US $11.99
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 TURBO POWER TI7 DW FAIRWAY WOOD COMPONENT HEAD RH US $11.99
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 TURBO POWER TI 11 TITANIUM DRIVER COMPONENT HEAD RH US $59.99
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 TURBO POWER Z PLUS 3 FAIRWAY WOOD COMPONENT HEAD RH US $11.99
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 TURBO POWER Z 2.0 TITANIUM DRIVER COMPONENT HEAD RH US $49.99
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 TURBO POWER TI 9 TITANIUM DRIVER COMPONENT HEAD RH US $34.99
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 TURBO POWER SPIRIT PUTTER COMPONENT WHITE BLACK HEAD RH US $24.99
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 TURBO POWER SZ-7 PUTTER COMPONENT STAINLESS HEAD RH US $24.99
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 TURBO POWER SPIRIT PUTTER COMPONENT STAINLESS HEAD RH US $14.99
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 TURBO POWER RI5 TITANIUM DRIVER COMPONENT HEAD RH US $44.99
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 TURBO POWER FIRE 3.0 TITANIUM DRIVER COMPONENT HEAD RH US $54.99
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 TURBO POWER XL II 431 SS IRON COMPONENT SET HEADS RH US $52.99
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 TURBO POWER TARGET PUTTER COMPONENT WHITE BLACK HEAD RH STAINLESS 350G 0.370" US $24.99
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 TURBO POWER TI 11 IRON COMPONENT SET HEADS LH 431 STAINLESS US $64.99
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 TURBO POWER Z 2.0 HYBRID COMPONENT HEAD RH 431 STAINLESS US $17.99
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 TURBO POWER FIRE 3.0 431 SS IRON COMPONENT SET HEADS LH US $64.99
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 TURBO POWER LAZER X TITANIUM DRIVER COMPONENT HEAD RH US $49.99
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 TURBO POWER SPIRIT PUTTER COMPONENT STAINLESS HEAD LH US $14.99
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 TURBO POWER Z 5 TITANIUM DRIVER COMPONENT HEAD RH US $23.99
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 TURBO POWER TI750 TITANIUM DRIVER COMPONENT HEAD RH US $25.99
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 TURBO POWER LAZER XL TITANIUM DRIVER COMPONENT HEAD RH US $54.99
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Component Head
Component of a Hard Disk Drive
Components used in HDD can be broadly classified into 4 categories – magnetic components, mechanical components, electro-mechanical components, and electronics. In hard disk drive, information bits are stored in concentric data tracks on a rotating disk coated with magnetic media. The information is recorded as well as retrieved using the read/write head. Practical realization of such non-volatile storage and retrieval of binary bits, however, involves many other essential components, e.g., a motor to spin the disks, an actuator to make read/write head access the desired data etc.
Head and Disk
Data is recorded on a continuously spinning disk made of aluminum or glass and coated on both sides with a thin layer of magnetic material. The disk is mounted through a hole at the center on the shaft (spindle) of a motor that spins the disks. In desktop application, the disks are spun at 6,000 or 7,200 RPM. The spinning speed can be 10,000 RPM or beyond in high performance HDD. Disk is coated with several layers of other materials.
Electromechanical Components
Two different electromechanical components are used in a hard disk drive - (1) a spindle motor to spin the disk or disks and (2) an actuator to re-position the read-write heads on the desired data track and to maintain its position precisely over the track while data is being read or written.
Mechanical and Electronic Components
The drive enclosure is the external casing of the hard disk drive. It provides features for mounting the drive in the drive bay of the host system, and supports other components of the HDD such as spindle motor, actuator, PCB etc. There are two parts of the enclosure - top cover and base plate. All components are assembled on the base plate.
Electronic components of an HDD can be categorized according to the following functions:
1. Electronics for reading/writing also known as the channel electronics.
2. Electronics for spinning the disks and positioning of the read/write head also known as the servo channel.
3. Electronics for controlling various operations (such as read data, write data, transfer data between HDD and host etc) of the disk or the disk controller.
4. Electronics for interface with the host system.
5. RAM, ROM etc.
About the Author
Suwanto
CEO of BestStorages.com
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