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AN/ANR Series

  • AN/ANR SeriesTWO (2) Sizes Available - NEMA 23 & NEMA 34
  • Select Single and Double Stage Ratios Available
  • Low Backlash Available - less than 1 arc-minute
  • Low Noise - less than 58dB
  • High Efficiency - Over 97%
  • Multiple Output Shaft Options
  • Stainless Steel construction
  • Patented One Piece Planet Carrier (US PATENT # 6,503,168)
  • Lubricated for Life
  • Mounts to ANY motor in Seconds
  • ATEX compliant

The Apex AN series is first HELCIAL TRUE NEMA on the Market. Highest Precision, Highest Torque and Quiet Operation are provided by 100% optimized Helical Gearing. Straddle Mounted High Precision Bearings Allow for High Radial and Axial Loads.

The Apex ANR version has a 90° input via spiral bevel gear. Features an extremely short, rigid housing and full compatibility to any motor.

Competitive Drop In Replacements:

Replaces Most Standard Nema Gearheads


  • Patented Output Sealing SystemsNEW

    Patented output sealing systems design eliminates friction and heat generation which is accomplished by applying our hi-tech coating to all output contact surfaces. This coating reaches a hardness of 3700Hv and is ground to Ra 0.2 µ m finish to ensure sealing.
  • Patented input sealing systemNEW

    Patented input sealing system design eliminates break away torque and decreases friction/heat. The hi-tech coating bushing (3700 Hv, Ra 0.2 µ m finish) interfaces with our proprietary seal which decreases wear and erosion of both sealing surfaces. This new patent prevents leakage and has a service life of over 20,000 hours.
  • True Helical Gear Design

    Helical Gear Design

    Helical gearing increases the tooth to tooth contact ratio by as much as 33%, Benefits include increased torque capacity, ultimate smoothness, lower backlash and decreased noise. The helix angle is carefully chosen to gain these advantages while not producing excessive axial forces.
  • Solid Needle Roller BearingsPlanet gears rotate on solid uncaged needle roller bearings for increased stiffness and the maximum number of contact points. Hardened thrust washers allow the precise control of clearances in order to eliminate backlash.
  • HeliTopo technologyIndustry-leading gear performance is attained with our HeliTopo technology. Ease off of the tooth profile and lead crowning optimizes the gear mesh under load and achieves maximum tooth surface contact.
  • Plasma NitridingOur in-house plasma nitriding treatment process allows the hardness of the gear flanks to reach over 900Hv for superior wear resistance and still maintain a core hardness of 30HRc for toughness and resistance to shock loading.
  • Patented Planet Carrier DesignOne-piece carrier and output housing ensure 100% concentricity and alignment of all the rotating components. One-piece construction increases strength, rigidity and system reliability.
  • Nyogel 792DLubrication by synthetic Nyogel 792D grease for smooth operation over the whole service life, Sealed to IP65 standard for ingress protection and can be mounted in any orientation.
  • Patented planet carrier designPatented planet carrier design mounts the sun gear bearing directly into the planet carrier in order to eliminate misalignment. This exclusive design offers great advantages in decreased noise, vibration and transmission errors and losses.
  • Triple split colletTriple split collet with dynamic balanced set collar clamping system provides backlash free power transmission and eliminates slippage. 100% concentricity allows for smooth rotation and higher input speed capability.

Contact Us with your Requirements