https://www.oldhobartmixerparts.com/d300-transmission-shaft-parts_1/BB-017-09-875419-053-8929-BN-02-02-.html
Hobart D300 Mixer Transmission Repair kit BB-017-09 Top Bearing, 00-875419-00053 Key, 00-089829...
Hobart D300 Mixer Transmission Repair kit BB-017-09 Top Bearing, 00-875419-00053 Key, 00-089829 Spacer, 00-875419-00060 Key BN-002-02 Needle Bearing.