Return Path Inside a Recirculating Ball Screw

Illustrate a recirculating ball screw in an isometric cutaway, exposing the helical race between the screw and nut and the return passage that closes the loop. Show the same stream of steel balls entering and leaving the return passage with a small gap between balls so the route reads clearly. Use a restrained blue arrow for linear travel and separate orange arrows for circulation. Leave the housing unlabelled with room for numbered callouts.

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