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Alpha gear drives, Inc. is recognized worldwide as the standard of excellence and quality for applications requiring precision planetary gear technology.
alpha gearLow-backlash planetary gearhead for both cyclic and continuous operation
The SP+ is the successor to our highly successful SP series, with improvements in every aspect of performance and service life.
SP+ features a positioning accuracy that previously was possible only with the alpha TP series. It has a markedly higher torsional stiffness and service life than competitive products. It can be perfectly mounted to the motor in one single step, and it offers impressive acceleration torques.

alpha servo gearing-Alpha TPK Series
- Supplied ready to mount to any servomotor
-for cyclic and continuous operation
-compact and space-saving design due to right-angle arrangement of the components
-integrated thermal length compensation

Alpha TPM Series High Torque Rotary Servo Actuators
-Compact AC servo gearhead systems
The most compact, most dynamic servo actuators in the world! Provide high dynamic performance in an extremely compact package. Ideal for high cyclic applications in compact machine designs
Alpha Bellows Couplings and Torque Limiters
-metal bellows made of highly flexible high-grade stainless steel
-adjustable moment of disengagement
-backlash-free and torsionally stiff
-axial, lateral and angular compensation
with small restoring forces
-maintenance-free in correct use
-operating speed up to 10 000 rpm