The Planetary Gearbox (PG) series of gearboxes feature robust planetary gearing with a hex output shaft. Description Specifications Documentation The Planetary Gearbox (PG) series of gearboxes feature robust planetary gearing. You asked for it, we delivered. This gearbox features 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. Click here for PG Gearmotors (gearbox with motor attached) Useful Additional PG Parts: Mounting Bracket Replacement Output Assemblies 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 Gearbox Specifications: Exact Gearbox Reduction: (15752961 / 83521) : 1 Damaging Torque*: 30 ft/lbf Minimum Backdrive Torque: ~3.5 ft/lbs PG71 Gearbox Specifications: Exact Gearbox Reduction: (226233 / 3179) : 1 Stall Torque: 16.6 ft/lbf Minimum Backdrive Torque: ~1.3 ft/lbs PG27 Gearbox Specifications: Exact Gearbox Reduction: (3249 / 121) : 1 Stall Torque: 6.3 ft/lbf Minimum Backdrive Torque: ~0.3 ft/lbs 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 Damaging Torque: 30 ft-lb [41 N-m] 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: 12 VDC Weight: 0.85 lbs., 1.2 lbs., 1.4 lbs., 1.7 lbs., 2.0 lbs., 2.3 lbs.
