In-line Gearheads

Alpha SP+

The alpha SP+ is the newest generation in classic planetary precision.

Always the most popular of the planetary range, the alpha SP+ gearboxes are designed for a variety of applications, providing quiet operation and optimal axial and radial loading capacities.  For high speed applications, Wittenstein offers the alpha SP+ High Speed® as the best alternative. All alpha SP+ gearheads are 100% factory tested according to the stringent alpha cycle.

Stealth Advanced PS is Parker Bayside's highest performance servo gearhead. With 8 frame sizes and 12 gear ratios, you are guaranteed to find a Stealth Advanced PS to fit your high performance servo applications.

Stealth''s superior design and construction deliver "The Helical Advantage:

  • 6 Frame sizes: 60, 90, 115, 142, 180, 220mm
  • Ratios: 3, 5, 7, 10, 15, 20, 25, 30, 40, 50, 70, 100
  • Strong...30% more Torque
  • Quiet...Less than 68db Noise
  • Fast...6,000 RPM Input Speeds
  • Accurate...Less than 3 Arc minutes Backlash
  • Plus . . . Over 97% Efficiency

Alpha LP+/LPB+

The economic precision products, alpha’s LP+ & LPB+, are reliable and – thanks to a unique lubrication concept – maintenance-free for their entire service life.

Focused on less demanding applications, these gear reducers offer outstanding efficiency with low torsional backlash.
The LPB+ offers the option of adding an integrated geared pulley drive system. The belt pulley eliminates the need for a right angle gearbox, couplings and/or additional bearings - in turn, reducing cost, increasing performance, and reducing parts and engineering time for the system.

Parker Bayside Gen II Stealth Gearhead "In-Line" PX

High performance at an exceptional value makes STEALTH PX the gearhead of choice for today''s lower cost servo motor applications. Stealth PX delivers the best value with the advantages of helical planetary technology.


  • High Torque...More than standard planetaries.
  • Lowest Backlash...Less than 15 arcminutes (10 arcminute option)
  • Quietest operation...Less than 70db
  • High Input Speeds...Up to 5,000 RPM
  • High Efficiency...Over 90% efficiency

Parker Bayside PV Series "In-Line Power and Versatility"

The PV Series Planetary Gearbox combines Power and Versatility with its wide combination of competitive output faces, high radial load capacities and maintenance free operation. The PV series is available in four metric/NEMA frame sizes and a large offering of ratios. Whether you’re an OEM or an end user searching for competitive alternatives the PV offers a superior solution. Manufactured in the USA, Parker Bayside’s PV series gearbox is universally the only choice.

Alpha TP+

The alpha TP+ planetary gear reducer is packed with exceptional precision in an intelligent, compact solution, offering you revolutionary, space-saving machine designs.
Key performance characteristics of the innovative alpha TP+ gearhead are low backlash and high torsional stiffness combining to create superior positioning accuracy, even in the micro range.

This compact precision gearbox solution from the alpha range of planetary gear reducers achieves substantial more torque than other alternatives.

Southern California (Main Office): 9209 Research Drive • Irvine, CA 92618 • Ph: (949) 585-9009 • Fax: (949) 585-9218

Northern California: 1700 Wyatt Drive Suite 7 • Santa Clara, CA 95054 • Ph: (408) 327-0700 • Fax: (408) 327-0703