Product Description
8mm new aluminum spacer (hub) with key 18033
NEXUS 18033 combines a spacer and wheel hub in an aluminum component with a nominal 8 mm bore and a keyway. It is sold individually. Check the shaft form, keyway, fixing method and wheel-side mounting pattern against the 18033 drawing before selecting the hub for a motor-to-wheel connection.
Choose the correct bore version
18033 is the 8 mm bore version. The related 18034 spacer hub is the 10 mm bore version. These sizes are not interchangeable: confirm the actual shaft dimensions and the remaining mounting interface before ordering.
Selection questions
Is 18033 a complete wheel?
No. It is the spacer and hub component used at the motor-to-wheel interface.
Does the 8 mm bore alone confirm compatibility?
No. Check the shaft profile, keyway, fixing method, wheel-side hole pattern and installation clearance together.
Where can I review the interface?
Use the 18033 PDF linked below to compare the shaft bore, keyway and mounting-hole arrangement with your assembly.
• Outside diameter: 57mm
• Inside diameter: 8mm
• Sold individually

