Home

 

 

 

 

 

 ServoFit™ Planetary Gearheads
      "P" Series Planetary
      "PA" Series Planetary
      "PH" Series Planetary
      "PHA" Series Planetary
      "PE" Series Planetary
      "PKX" Series Planetary
      "PHKX" Series Planetary
 TriAdapt Input Features
 FAQ
 Brochures & Catalogs
 CAD Files & Drawings


ServoFit™ Precision Planetary Gearhead

The STOBER offering of ServoFit gearheads will enable you to fit all your servo needs. The ServoFit Precision Planetary Gearheads (SPG) are for compact, highly dynamic applications.

pictures

Fits any Servo Motor
The ServoFit™ precision planetary gearhead adapter system attaches to most NEMA and IEC servo motors. STOBER has the most common motor adapters in stock and ready for delivery. Non-stock motor adapters are made to the customer’s specifications in ten days or less at no additional charge.  

The STOBER motor adapter is a separate component, which allows a different motor to be mounted in the field if a motor change is needed.

  • The TriAdapt™ motor adapter system makes installation fast and easy - all without special tools and gauges. It provides greater concentricity and accommodates shaft misalignment and runout.
  • This patented shaft clamp system requires no shaft key. Its aluminum clamp ring weighs approximately 1/3 the weight of a steel clamp coupling. This reduction in weight helps minimize the drive's inertia.
  • The TriAdapt™ triple split collet clamps firmly to hold a motor shaft tight
  • Aluminum motor plate and input cover for low total weight

Lowest Standard Backlash
All STOBER units have a backlash that has been individually tested three times in 120 degree increments. Each unit is tested without oil, to provide an accurate reading of the gear quality. The backlash for each unit is marked on the TriAdapt clamp.

Advanced Gear Technology
ServoFit™ precision planetary gearheads feature HeliCamber™ gear technology which was introduced by STÖBER in 1989 with the MGS line of speed reducers. This method of gear cutting involves cambering the tooth profile and crowning the lead of the tooth to give the highest possible number of teeth in contact.

All planet gears are hardened and ground to ISO Standard 4. This eliminates any irregularities that might generate heat, noise and pulsations in the drive train which can lead to speed fluctuation.

Cool Running
ServoFit™ precision planetary gearheads attain high efficiency by using HeliCamber™ gear technology to minimize wear and helical gears with a high contact ratio in all stages.

This gearhead keeps operating temperatures to a minimum with:

  • Highly efficient HeliCamber finish ground gears
  • Black Paint on a Ductile Iron housing to dissipate heat
  • Smallest possible input seal diameters to prevent internal heat build up.
  • Less Surface Area = Less Drag.
  • Synthetic Oil for lifetime lubrication

These features allow STOBER planetary units to be used in continuous duty applications without concern.

Low Noise
ServoFit™ precision planetary gearheads are quieter than any planetary or in-line helical gearhead available.

1 conventional planetary gearhead produces the same noise level as 16 STOBER planetary gearheads.

This is made possible by HeliCamber™ gear technology and the specially designed ductile iron gearcase which provides exceptional strength and maximum heat dissipation with the added benefit of noise dampening.

"State-of-the-Art" Design
The totally enclosed, single piece gearcase is sealed per IEC IP65 standards (protected against dust and jets of water in all directions) to prevent lubrication leakage and contamination for long life.

FKM seals are standard. Oversized bearings and shafts support high radial loads and contribute to the high torsional stiffness

Spider or planet gears are press fit onto the shaft without keys to minimize misalignment. The ring gear is precision machined integral to the housing, not pressed in, for maximum accuracy and strength. This design eliminates concerns about misalignment or gear spinning in the housing.

Each planet carrier is balanced, to provide smooth vibration free running at high speeds. Each planet gear is straddle mounted by two bearings for low noise and minimal backlash.  They are pressed on to shafts without keys to minimize misalignment.

3 Day Delivery
Standard delivery from stock is three days for the most popular ratios of ServoFit™ precision planetary gearheads.