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Vertically Integrated Batch Manufacturer of Gears & Shafts

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
Spline Hub
Spur Gear
Drilled Spline Shaft
Helical Gears
Internal Helical Ring Gear
Ring Gear
Sun Gear
Pinion Gears
Mori Seiki NZ2000 Turn-Mill Twin Turret
Hofler-700
S&T Dynamics CNC Hobber 700mm Diameter
Mitsubishi ST 40 with Tilt Table
Reishauer RZ 260 260mm Diameter
Reishauer RZ 400 400mm Diameter
Sigma 3 M&M Gear Analyzer