Banebots P61 Gearbox: 1.5 inch Shaft, RS-540/550 Mount, 20:1 (No Grease)

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BanebotsSKU: RB-Ban-232
Manufacturer #: P61S-54

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Sale price ¥8,430 Regular price ¥9,367

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  • 20:1 All-metal gearbox
  • Compatible Motors: RS-540, RS-545, RS-550, RS-555
  • Gearbox must be disassembled and greased
  • Mounting hardware included
  • Motor sold separately

This is the Banebots P60 Gearbox: 1.5" Shaft, RS-540/550 Mount, 20:1 (No Grease). These Banebots P61 Gearboxes are a third generation design. Don't let the small size fool you - these gearboxes pack a lot into a small package. BotsIQ teams, FIRST teams, schools, companies, and individuals provided input into the design.


  • Completely manufactured and assembled in the United States
  • Small size and weight
  • CNC machined components for tight tolerances
  • Cold rolled steel gears and hardened 4140 steel carrier plates
  • Lightweight 2024 Aluminum ringgear or optional high strength steel ringgear


Gearboxes are delivered assembled and tested; however, each will need to be disassembled to grease and mount the motor prior to use. No special tools are required, typically only a screw driver and Allen wrench. A small arbor press or bench vise is useful for pushing the pinion onto the motor shaft. The gearbox must be greased prior to use, grease is not included and must be purchased separately. Banebots recommends Mobil XHP 222 Special grease; however, most lithium based ball bearing grease can be used. Grease can be readily purchased from most local auto parts stores or online suppliers.

Mounting Hardware:

Gearbox includes one mounting kit. Mounting kit contains everything required to mount 1 motor including pinion, screws, and lock washers to attach the motor to the gearbox.

Please see the important note for this product in useful links tab.

  • 1x Banebots P61 Gearbox: 1.5 inch Shaft, RS-540/550 Mount, 20:1 (No Grease)
  • Type: Planetary
  • Reduction: 20.36:1
  • Stages: 2 - 5:1, 4:1
  • Gear Material: Steel
  • Weight: 8.0oz (227g)
  • Length: 1.9in (48.3mm)
  • Width (Square): 1.5 in (38.1mm)
  • Shaft Diameter: 0.50 in (12.7mm)
  • Shaft Length:1.5 in (38.1mm)
  • Shaft Key: 0.125 in (3.2mm)
  • Shaft End Tap: #10-32
  • Mounting Holes (8): #10-32

Customer Reviews

Based on 1 review
Great gearbox

Great gearbox for our robots. Didn't have any problem with the geasing part. The only downside, the pinion gear are expensive and only available by the manufacturer and shipping was over the top. So if you need to change the electric motor, you will probably need another pinion as they are pressed.

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