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Low Load Beam Suspension for Magnetic Heads

IP.com Disclosure Number: IPCOM000085557D
Original Publication Date: 1976-Apr-01
Included in the Prior Art Database: 2005-Mar-02
Document File: 2 page(s) / 32K

Publishing Venue

IBM

Related People

Watrous, RB: AUTHOR

Abstract

Air bearing sliders supporting magnetic heads are mounted in suspensions that provide a stiffness and rigidity against radial, circumferential and yaw motions, and provide flexibility for pitch and roll movements. The sliders are generally urged toward the magnetic media by a stiff somewhat nonresilient load beam having a pin or finger that contacts the load protuberance on the slider. The friction generated at this contact point tends to reduce the freedom of the slider to pitch and roll to accommodate the changing topography of the media surface.

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Low Load Beam Suspension for Magnetic Heads

Air bearing sliders supporting magnetic heads are mounted in suspensions that provide a stiffness and rigidity against radial, circumferential and yaw motions, and provide flexibility for pitch and roll movements. The sliders are generally urged toward the magnetic media by a stiff somewhat nonresilient load beam having a pin or finger that contacts the load protuberance on the slider. The friction generated at this contact point tends to reduce the freedom of the slider to pitch and roll to accommodate the changing topography of the media surface.

The contact point friction can be eliminated by providing a slider suspension for magnetic heads as shown in the figures. The load beam and load protuberance of former devices are eliminated to provide a simpler, less costly mechanism.

Figs. 1 and 2 show the basic components of the arm 1, suspension 2 and slider assembly 3. The two flat parallel fingers 4 extending from the suspension 2 across the slider 3 provide the necessary pitch and roll flexibility, while transmitting the force generated by the load spring 5 to the slider assembly 3. This load spring force is applied to the slider 3 to overcome the air bearing force produced perpendicular to the slider by the relative motion between the slider 3 and the media 6. This force cannot produce any twisting moments on the slider
3. Slider support arms 7 connect the slider 3 to the ends of the fingers 4.

This balanced force is...