Parker Bayside Stealth PX Series precision inline planetary gearhead, 3:1 for Sale

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Parker Bayside Stealth PX Series precision inline planetary gearhead, 3:1 For Sale

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Parker Bayside Stealth PX Series precision inline planetary gearhead, 3:1:
$300.00

Series: Parker Bayside Stealth PX
Frame: PX34 / NEMA 34
Ratio: 3:1
Configuration: Inline planetary gearhead
Revision: Rev A
Likely: A factory/customized or serialized configuration, based on the long suffix L2210212N0154.

The core part designation is particularly informative:

PX — Parker Bayside's Stealth PX gearhead family.
34 — NEMA 34 frame size.
003 — 3:1 reduction ratio. Parker's PX ordering system uses 003 for 3:1.What the gearhead does
This is a precision mechanical speed reducer intended to mount between a servo motor and a driven machine. Its purpose is to reduce the motor's rotational speed while increasing the available output torque.
With a 3:1 ratio, for every three revolutions of the motor input, the gearhead output turns approximately once:
Motor input: 3 revolutions
Gearhead output: 1 revolution
Ideally, the output torque is approximately three times the input torque, less mechanical losses. Parker specifies the PX family at over 90% efficiency, so the actual torque multiplication will be somewhat less than the ideal 3× value.
For example, at 3,000 RPM motor speed:
- Input = 3,000 RPM
- Output ≈ 1,000 RPM
At 5,000 RPM:
- Input = 5,000 RPM
- Output ≈ 1,667 RPM
Parker lists maximum input speeds of up to 5,000 RPM for the Stealth PX family.
Gear technology
The PX is not simply a basic spur-gear reducer. Parker describes the Stealth PX as using helical planetary technology. This arrangement uses multiple planetary gears sharing the load around a central sun gear, which allows the gearhead to provide relatively high torque in a compact package. The helical gearing also contributes to smoother and quieter operation than a conventional straight-tooth planetary arrangement.
Parker positions the PX specifically as a relatively economical gearhead for servo-motor applications, particularly applications that don't require the extreme performance specifications of its larger PS series.
Important published specifications
For the current PX family, Parker lists:
CharacteristicPX specificationGear typeHelical planetaryConfigurationInlineFrame sizesNEMA 23–42Your frameNEMA 34 / PX34Ratios3:1 through 100:1Your ratio3:1Continuous torque, PX family18–158 Nm depending on frame/configurationBacklash<8 arc-min for the listed PX familyEfficiency>90%Maximum input speedUp to 5,000 RPMProtectionIP65Noise<70 dB