Replacement Axle and Wind Cups



Maintenance-free, quiet and high-performance. Machined to extreme levels of precision; the tolerance is just 0.001 inch, for smooth, silent rotation in even the lightest air movement.  The cups include a tiny magnet in the flange at the base for wind speed, and a brass jewel bearing in the top.

This new design includes a new bushing inside the wind cups and a new stainless steel axle for better wear-resistance.  The new axle fits the previous base.   Became available on October 19, 2018 to replace earlier wind cups.

If you wish to replace the cups yourself, the Wind Instrument is designed to be disassembled easily, following these disassembly instructions.

We also have a $45 service option, if you want to send in your Wind Instrument to get the new cups and axle installed.  Add this when ordering the cups if you want us to send back your Wind Instrument with the new wind cups and axle installed.  That ensures that everything is adjusted correctly with the new wind cups and axle.

The cups come pre-assembled with the jewel bearing and magnet.  The stainless steel axle is precision-machined, and has the pin for the jewel bearing pre-installed.  The box is shipped inside a larger corrugated box since the cups sometimes get crushed during shipping if a smaller box is used. With FedEx Air Express, the delivery time is usually only about 2 days, and you’ll receive a tracking number by email when the package is sent.

Additional information

Weight .024 lbs
Dimensions 12 x 9 x 7 in

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