PG Series Gearboxes

$69.00 – $99.00

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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 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, or the AndyMark 9015 Motor using a Hardware Kit for PG 71 and 188 Gearbox with Pinion Gear for 9015 Motor

PG Gearmotor Part Numbers (click below to select by part number):
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: 4 x M4-0.7 on 35 mm Bolt Circle, AND 4x #10-32 on 2 in.  Bolt Circle.
PG188 Specifications:
  • Exact Gearbox Reduction: (15752961 / 83521) : 1
  • No Load Free Speed: 28 RPM
  • Damaging Torque*: 30 ft/lbf
  • Minimum Backdrive Torque: 3.5 ft/lbs
PG71 Specifications:
  • Exact Gearbox Reduction: (226233 / 3179) : 1
  • No Load Free Speed: 75 RPM
  • Stall Torque: 16.6 ft/lbf
  • Minimum Backdrive Torque: 1.3 ft/lbs
PG27 Specifications:
  • Exact Gearbox Reduction: (3249 / 121) : 1
  • No Load Free Speed: 198 RPM
  • Stall Torque: 6.3 ft/lbf
  • Minimum Backdrive Torque: 0.3 ft/lbs
Encoder 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 backward from normal front-mounted encoders. You will need to 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:
The following gearmotors (gearbox + motor) contain or have contained motors with part numbers that have been deemed legal for FIRST Robotics Competition: am-0576, am-0586, am-0629, am-0914, am-0915, am-0939, am-2082, am-2083, am-2084, am-2161. am-2193, am-2193, am-2194, am-2389, am-2542, am-2549, am-2550, am-2765, am-2766, am-2923, am-2924, am-2937, am-2938, am-2971, am-3108, am-3109, am-3183, am-3651, am-3652, am-3653, am-3654, am-3655, am-3656, am-4250, am-4270.
Variants of these part numbers that include additional letters are also legal.

*If stalled these gearboxes are capable of breaking themselves and should only be used to reduce speed, not increase torque past 30 ft lbs

Specifications

  • Damaging Torque : 30 ft lbs
  • Lubrication: Included with Gearbox, Pre-lubricated Gears
  • Material: Steel
  • Motor Input: PG
  • Motor Quantity: 1
  • Mounting Geometry: 4 10-32 threaded holes on a 2 in. Bolt Circle, 4 M4 x 0.7 Threaded Holes on a 1.378 in. Bolt Circle, Mounting holes for 500 and 775 series motors, 4 10-32 threaded holes on a 2 in. Bolt Circle, 4 M4 x 0.7 Threaded Holes on a 1.378 in. Bolt Circle, 4 10-32 threaded holes on a 2 in. Bolt Circle, 4 M4 x 0.7 Threaded Holes on a 1.378 in. Bolt Circle
  • Overall Depth: 2.892 in., 3.33 in., 3.78 in., 3.787 in., 4.48 in.
  • Ratio: 27:1, 71:1, 188:1
  • Voltage: 12V DC
  • 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, 2.49 lbs

Returns

Returns are accepted within 30 days of purchase.
View our return policy here.

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1 review

  1. star star star star star 5 out of 5 stars

    Be careful

    I bought these not realizing they are not compliant to FTC rules, and are in fact for FRC.

    RS from WOONSOCKET

    Verified Purchaser

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