Spinning Disc Hermit Crab Climbing Toy

This is a fun and creative way to keep your hermit crabs moving all night long. This climbing toy has a base and a disc on top that when assembled correctly, will spin freely for your hermit crabs to walk on. 

I made multiple designs and versions of both the disc and the base. The base, unlike other similar designs, features a channel between the base and wheel to allow for any unwanted sand granules to fall down to the bottom, out of the path of the disc. To assemble the climbing toy, you will need to purchase two extra pieces that are non printable. They are a ¼ x 1 inch precession steel dowel pin and a ¼ x ½ x 3/16 inch ball bearing. The links for each that I used in the project are linked below. 

To assemble, first press the dowel pin into the bearing to where the pin is flush with the inner race of the bearing. Be sure to apply pressure to the inner race and NOT the outer race of the bearing when assembling to avoid damage. This can be done with anything between a small automotive socket and vice to even some vice grips. Get creative and be careful; its easier than it sounds. After pressing the pin into the bearing, press the bearing assembly into the disc with the pin facing out. Finally, press the pin facing out of the disc into the base and check for proper alignment/movement. 

Dowel Pin: https://www.amazon.com/Hillman-Group-44244-1-Inch-12-Pack/dp/B00IZFXF3G/ref=sr_1_1?sr=8-1

Bearing: https://www.amazon.com/uxcell-R188ZZ-Groove-Bearings-Shielded/dp/B082PQ9FSY/ref=sr_1_3_sspa?sr=8-3-spons&sp_csd=d2lkZ2V0TmFtZT1zcF9idGY&psc=1

This is a great toy for your crabs and they'll be sure to love it.