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    PG Series Gearbox 977:1 with Motor Installed (1/2 Hex Shaft)

    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.



     

    MFR Part #: am-4270
    $159.00
    Out of Stock - on backorder and will be dispatched once in stock.

    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.

    PG977 Specifications:

    • Exact Gearbox Reduction: (897918777 / 918731) : 1
    • No Load Free Speed: 6.4 RPM
    • Damaging Torque*: 30 ft/lbf
    • Minimum Backdrive Torque: 14.5 ft/lbs

    PG516 Specifications:

    • Exact Gearbox Reduction: (11667159 / 22627) : 1
    • No Load Free Speed: 11 RPM
    • Damaging Torque*: 30 ft/lbf
    • Minimum Backdrive Torque: 7 ft/lbs

    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
    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, 516:1, 977:1
    • 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

    Documents

    Layout Print(s)

    PG HEX SERIES LAYOUT.PDF

    CAD File(s)

    am-3651 PG27 375 hex Motor Encoder.STEP

    am-3651g PG27 375 hex.STEP

    am-3652 PG71 375 hex Motor Encoder.STEP

    am-3652g PG71 375 hex.STEP

    am-3653 PG188 375 hex Motor Encoder.STEP

    am-3653g PG188 375 hex.STEP

    am-3654 PG27 500 hex Motor Encoder.STEP

    am-3654g PG27 500 hex.STEP

    am-3655 PG71 500 hex Motor Encoder.STEP

    am-3655g PG71 500 hex.STEP

    am-3656 PG188 500 hex Motor Encoder.STEP

    am-3656g PG188 500 hex.STEP

    am-4250 PG516 500 hex Motor Encoder.STEP

    am-4270 PG977 500 hex Motor Encoder.STEP

    Guide(s)

    am-3654 motor curve sheet.pdf

    am-3655 motor curve sheet.pdf

    am-3656 Motor curve sheet.pdf

    am-4250 motor curve sheet.pdf

    am-4270 motor curve sheet.pdf

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    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.

    PG977 Specifications:

    • Exact Gearbox Reduction: (897918777 / 918731) : 1
    • No Load Free Speed: 6.4 RPM
    • Damaging Torque*: 30 ft/lbf
    • Minimum Backdrive Torque: 14.5 ft/lbs

    PG516 Specifications:

    • Exact Gearbox Reduction: (11667159 / 22627) : 1
    • No Load Free Speed: 11 RPM
    • Damaging Torque*: 30 ft/lbf
    • Minimum Backdrive Torque: 7 ft/lbs

    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
    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, 516:1, 977:1
    • 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

    Documents

    Layout Print(s)

    PG HEX SERIES LAYOUT.PDF

    CAD File(s)

    am-3651 PG27 375 hex Motor Encoder.STEP

    am-3651g PG27 375 hex.STEP

    am-3652 PG71 375 hex Motor Encoder.STEP

    am-3652g PG71 375 hex.STEP

    am-3653 PG188 375 hex Motor Encoder.STEP

    am-3653g PG188 375 hex.STEP

    am-3654 PG27 500 hex Motor Encoder.STEP

    am-3654g PG27 500 hex.STEP

    am-3655 PG71 500 hex Motor Encoder.STEP

    am-3655g PG71 500 hex.STEP

    am-3656 PG188 500 hex Motor Encoder.STEP

    am-3656g PG188 500 hex.STEP

    am-4250 PG516 500 hex Motor Encoder.STEP

    am-4270 PG977 500 hex Motor Encoder.STEP

    Guide(s)

    am-3654 motor curve sheet.pdf

    am-3655 motor curve sheet.pdf

    am-3656 Motor curve sheet.pdf

    am-4250 motor curve sheet.pdf

    am-4270 motor curve sheet.pdf

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    Compliant wheels are not intended for moving robots, but moving objects. Compliant wheels give way to allow rigid objects to be manipulated easily. A line of multiple wheels on a driven hex shaft creates a very effective roller that ignores variations in the objects being driven. This makes for high-performance intakes and internal conveyors. The wheels are sized for an interference fit and tend to stay in place on a shaft, though a shaft collar may be used to make absolutely sure the wheels stay clear of other mechanisms or maintain consistent spacing.

     

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    • Width: 0.5 in.

     

    Documents

    Layout Print(s)

    am-3571 2IN 375 Hex Compliant Wheel REV3.PDF

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    CAD File(s)

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