Gearhead exploits single-piece construction

Nov. 6, 2003
The AB and AF Series of helical planetary gearheads from Apex Dynamics USA use shaft cage assemblies and input bearing bores machined from a single piece of stainless steel using the same turning center and centerlines.

The AB and AF Series of helical planetary gearheads from Apex Dynamics USA, Holbrook, N.Y. (www.apexdynamicsusa.com), use shaft cage assemblies and input bearing bores machined from a single piece of stainless steel using the same turning center and centerlines. This gives them the 100% concentricity needed for less than 1 arc-min of backlash. This degree of concentricity also improves efficiency and keeps operational noise under 56 dB. The gearheads have input-hub pinion bearings directly behind the single-piece cage assemblies, which let the gearheads handle inputs to 10,000 rpm. Oversized, tapered-roller bearings and fully complemented planetary needle bearings give the gearheads over 30,000 hr of service life and provide up to 6,000 Nm (53,000 lb-in.) of torque. The devices range in size from 42 to 220-mm square and available gear ratios span 3:1 through 100:1.

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