PG Series Gearboxes

$55.00 – $94.00

The Planetary Gearbox (PG) series of gearboxes and gearmotors feature robust planetary gearing inside paired with reliable motors. You asked for it, we delivered. This gearbox now features two hex ...Read More

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Product Overview

The Planetary Gearbox (PG) series of gearboxes and gearmotors feature robust planetary gearing inside paired with reliable motors. You asked for it, we delivered. This gearbox now features two hex output shaft options to easily attach to 3/8 in. or 1/2 in. hex bore wheels, sprockets, and other motion products without the need for special adapters.

The PG Series of Planetary Gearboxes are designed for the following motors for the specific ratios (RS775-125 Motor, with Encoder For PG27 Gearbox and RS775-5 Motor, with Encoder For PG71 and PG188 Gearbox (currently unavailable)), or the AndyMark 9015 (currently unavailable) Motor using a Hardware Kit for PG 71 and 188 Gearbox with Pinion Gear for 9015 Motor


Useful Additional PG Parts:

Physical Specifications Common Among all PG Series Gearboxes:

Pre-Lubricated
Gear Material: Steel and Plastic
Body Material: Steel
Input Voltage: 12 Volt DC
Mounting Holes: 4x M4-0.7 on 35mm Bolt Circle, AND 4x #10-32 on 2.00" Bolt Circle for hex versions
Output Shaft Profile: 0.375 Hex, 0.500 Hex, 10mm Round w/ 2mm Keyway
Maximum Rated Torque: 35ft-lbs
No Load Current: 0.6 Amps
Stall Current: 22 Amps
Output Power: 44 Watts

PG188 Specifications:

Gearbox Reduction: 188:1
No Load Free Speed: 28 RPM
Stall Torque: 33 ft-lbf
Minimum Backdrive Torque: 3.5 ft-lbs

PG71 Specifications:

Gearbox Reduction: 71:1
No Load Free Speed: 75 RPM
Stall Torque: 16.6 ft-lbf
Minimum Backdrive Torque: 1.3 ft-lbs

PG27 Specifications:

Gearbox Reduction: 26.9:1
No Load Free Speed: 198 RPM
Stall Torque: 6.3 ft-lbf
Minimum Backdrive Torque: 0.3 ft-lbs

Encoder Performance Specifications:

Pulses Per Revolution: 7
Operating Voltage: 5VDC
Pinout:
Pin 1: 5Vdc
Pin 2: Gnd
Pin 3: Encoder Output Cha. A
Pin 4: Encoder Output Cha. B
Note: Because the encoder is connected to the back of the motor shaft, the rotation is backwards from normal front mounted encoders so you will need compensate for this in software or simply connect Ch. A output to your Ch. B input and Ch. B output to your Ch. A input.

FRC Parts Legality

These gearboxes contain or have contained motors with the following part numbers that have been deemed legal for the 2019 FIRST Robotics Competition Season:
am-2161
am-2765
am-2194
am-2766

Specifications

  • Lubrication: Included with Gearbox,Pre-lubricated Gears
  • Material: Steel
  • Maximum Torque Recommendation: Estimated 35-ft lbs maximum torque
  • Mounting Geometry: 4 10-32 threaded holes on a 2.00" Bolt Circle, 4 M4x0.7 Threaded Holes on a 1.378" Bolt Circle,Mounting holes for 500 and 775 series motors,4 10-32 threaded holes on a 2.00" Bolt Circle,4 M4x0.7 Threaded Holes on a 1.378" Bolt Circle,4 10-32 threaded holes on a 2.00 in. Bolt Circle,4 M4x0.7 Threaded Holes on a 1.378 in. Bolt Circle
  • Overall Depth: 2.892 in.,3.33 in.,3.78 in.,3.787 in.
  • Ratio: 27:1,71:1,188:1
  • Weight: 1.66 lbs,0.840 lbs,1.96 lbs,1.14 lbs,2.20 lbs,1.4 lbs,1.98 lbs,2.23 lbs

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