Collection: Bearings

Mini lathes & mills both rely on spindle bearings for smooth, precise spindle rotation, but their applications, load requirements, and performance priorities differ, leading to different bearing choices.

FOR SMALL MACHINES THE QUALITY OF THE BEARING IS FAR MORE IMPORTANT THAN THE TYPE OF BEARING USED.

Bearing types:

• Deep groove radial ball bearings offer good radial load handling and high speed
  
• Tapered Roller Bearings (TRBs) can handle high axial loads but require careful preload and sealing
  
• Angular Contact Ball Bearings handle both radial and axial loads in one direction

Mini lathes prioritize low runout and smooth rotation for turning, often using precision ball bearings.

Mini mills, while also needing low runout, must handle higher axial loads from milling, so they may use tapered roller or angular contact bearings for stiffness, though deep groove radial bearings are common for cost and speed.

Choosing the right bearing type depends on the machine’s intended use, load profile, and performance requirements.

For a chart showing all bearings and machine replacement requirements, click HERE

*NOTE: all HiTorque machines use high-quality NSK, NTN, Nachi, or equivalent brand.