There is no trademark on the spindle of the machining center, and the following solutions can be considered:

1. Consult the supplier: contact the supplier of the machining center and ask if there is an option to provide trademarks or trademark substitutes.

2. refer to the user's manual: refer to the user's manual or technical specification of the machining center to see if the information about the spindle trademark is provided.

3. Try universal components: If you can't find a trademark that completely matches the spindle of the machining center, you can try to use universal mechanical components.