| 摘要 |
A spool hub for tape cartridges or cassettes, especially sound recording tape cartridges provided with slide or anti-friction foils, wherein the hub body is equiped with passageways or openings distributed at or over the circumference of the hub body. The passageways are advantageously located between blade0like webs. With this construction there is particularly reduced the friction between the spool and the slide or anti-friction foils, so that there prevail lower temperatures and there is acomplished a reduction of the undersired noise level.
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