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Special Issue; Products for Industrial Machinery - NTN

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New <strong>Products</strong> In<strong>for</strong>mation<br />

Hub Bearing with Built-In Low-Torque Hermetic Seal<br />

Twice the sealing per<strong>for</strong>mance and a 15% reduction in running torque in the<br />

same seal space through optimization of structure, <strong>for</strong>m and rubber material<br />

Features<br />

Structure<br />

¡Sealing per<strong>for</strong>mance: twice the resistance to<br />

muddy water<br />

¡ Lower torque: 15% decrease in running<br />

torque (30% decrease with seal alone)<br />

Muddy water test result<br />

Muddy water<br />

resistance cycles<br />

Twice<br />

as great<br />

Previous product<br />

New product<br />

Previous product<br />

Enlarged view of seal<br />

Dual side lip<br />

(greater sealing<br />

per<strong>for</strong>mance)<br />

New product<br />

Running torque<br />

Torque test result<br />

15% decrease<br />

in running torque<br />

Seal<br />

Bearing<br />

Radial lip<br />

(contact)<br />

Applications<br />

Side lip<br />

Radial lip (non-contact)<br />

Adoption of low torque rubber<br />

material (lower torque)<br />

Previous product<br />

New product<br />

¡Wheel bearings <strong>for</strong> passenger cars<br />

-121-

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