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Timken Super Precision Bearings for Machine Tool Applications

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B<br />

<strong>Precision</strong> Tapered Roller <strong>Bearings</strong><br />

<strong>Timken</strong> System<br />

399A - 394 A<br />

Cone<br />

(Inner Ring)<br />

Cup<br />

(Outer Ring)<br />

Component and<br />

Suffix Fields<br />

<strong>Precision</strong> Tapered Roller <strong>Bearings</strong><br />

ISO 355 Numbering System<br />

Cone<br />

(Inner Ring)<br />

Cup<br />

(Outer Ring)<br />

JP10049 - J P 100 10-B<br />

J Prefix<br />

Metric Nominal<br />

Cone Bore<br />

(in mm)<br />

Component and<br />

Suffix Fields<br />

<strong>Precision</strong> Tapered Roller <strong>Bearings</strong><br />

ABMA Numbering System<br />

Duty (alpha)<br />

Field<br />

Cone<br />

(Inner Ring)<br />

Cup<br />

(Outer Ring)<br />

JLM722948 - J LM 7 229 12<br />

J Prefix<br />

Metric Nominal<br />

Angularity<br />

Code Field<br />

Series<br />

Code Field<br />

Component and<br />

Suffix Fields<br />

Duty Code<br />

Field<br />

For more in<strong>for</strong>mation about numbering systems, see the<br />

following pages, or contact your <strong>Timken</strong> representative.<br />

106 TIMKEN MACHINE TOOL CATALOG

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