Parts list :Qty. 2 - Bearings 6003-2RS with measurement 17 mm x 35 mm x 10 mmhttp://www.amazon.com/6203-2RS-17-6203-2RS-Bearing/dp/B00HHH81Q4/ref=sr_1_7?s=industrial&ie=UTF8...3D Printed parts :Qty. 1 - ShaftQty. 2 - Spacer no. 1Qty. 1 - Spacer no. 2Qty. 1 - End plugQty. 2 - Shaft holderAssembly :Step 1 : Shaft.Step 2 : Spacer no. 1 with the small side down.Step 3 : Bearings 6003-2RS or Spacer no. 3.Step 4 : Spacer no. 2.Step 5 : Bearings 6003-2RS or Spacer no. 3.Step 6 : Spacer no. 1 with the small side up. Step 7 : End plug.