pCall us: (517) 552-3100
Vertically Integrated Batch Manufacturer of Complex Shafts & Gears

AA Gear & Manufacturing Portfolio

Our People: AA Gear & Manufacturing takes great pride in our Technological Capabilities in both our Equipment & especially our People who make the difference in our ability to serve our customer’s needs. AA Gear & Manufacturing is in the fortunate position of sharing geography with the birthplace of the automotive industry. As a result, AA Gear & Mfg has a Team with diverse backgrounds - Automotive OEM Manufacturing, Tier-I, Industrial, Agricultural & Machine Tool Industry’s to name a few. Featuring a deep bench of Gear Manufacturing knowledge, AA-Gear & Manufacturing has a seasoned Manufacturing & Engineering Team ready to tackle challenges you present to us.

Our Products

  • Spur/Helical Gears to 700mm (28") Ø
  • Pump Gears
  • Pinions/Sun Gears
  • Spline Shafts
  • Geared Shafts
  • Drilled Shafts
  • Hubs/Clutch Hubs
  • Clutch Collars
  • Planetary Carriers
  • Ring Gears
  • Sprockets
  • Dedicated Gear Lab
  • Dedicated CMM Lab
  • CNC Gear & Spline Inspection & Analysis

Our Machine Tools

  • 25+ Lathes up to 8 Axes & 2000mm (80") Between Centers
  • 7+ VMC/HMC Milling Machines up to 5 Axes & 1600mm (64") Capacity
  • 20+ Gear & Spline Hobbing Machines up to 700mm (27") Capacity
  • 10+ Gear & Spline Shaping Machines – including Guideless Helical
  • Shaving & Honing Capability
  • Vertical & Horizontal Broaching to 25 tons & 72" of Stroke
  • Spline Rolling to 3.5" Diameter & 16/32 Splines
  • Generating-type CNC Gear Grinding to 400mm (15.7")
  • Form-type CNC Gear Grinding to 700mm (28") w/On-Board Inspection Capability


  • Rack & Spline Grinding Equipment
  • CNC Wire EDM capability
  • CNC Gear Honing
  • CNC ID/OD Grinding to 300mm (12") x 1200mm (48") Lengths
  • CNC Jig Grinding capability
  • Lapping Capability
  • Dedicated CMM Lab to 1500mm (59") Heights
  • Dedicated GMM Lab to 680mm (27") Diameters
  • Composite Roll Testing
  • Magnaflux® & Nital Etch Processing
  • Flow Forming Capability
  • Dedicated Toolmaking Shop in-house


Pump Gear Shaft
Pump Gear Shaft
Spline Hub
Spline Hub
Spur Gear
Spur Gear
Drilled Spline Shaft
Drilled Spline Shaft
Helical Gears
Helical Gears
Internal Helical Ring Gear
Internal Helical Ring Gear
Ring Gear
Ring Gear
Sun Gear
Sun Gear
Pinion Gears
Double Helical Output Gear
Ring Gear
Splined Helical Sun Gear
Sun Gear
Ground Spur Gear
Pinion Gears
Pinion Gears