Building Block 150 Two Motor Gearbox, 3.25:1 , For RS-500 or RS-700 Motors

Building Block 150 Two Motor Gearbox, 3.25:1 , For RS-500 or RS-700 Motors

    Price:     $50.00

    Code: BB150G-1

    Quantity Price
    1-4 $50.00
    5-9 $45.00
    10-49 $43.50
    50+ $41.00

    Standard BB150 Gearbox configured to mount 1 or 2 motors with either a 3.2mm or 5mm shaft and either a 13mm, 15mm or 17.5mm boss. Motors with this configuration include RS-540, RS-545, RS-550, RS-555, RS-775, and RS-775 motors. Many hobby motors and cordless drill motors are this size.

    This gearbox will replace the standard back block on a BB150 gearbox. It comes complete with the pinion shaft to drive the BB150 as well as two mounting kits to mount motors to the gearbox. The shaft is supported by two ball bearings and the gears are completely enclosed for reliable trouble free operation.

    The pinion shaft can be replaced with a standard shaft and the gearbox can be used as a standalone 3.25:1 gearbox. We plan to release standard shafts in the near future. Custom shafts can also be machines relatively easily if required.

    This gearbox uses the same pinion as the BB150 gearboxes making it easy to move motors between the gearboxes.

    Reduction : 3.25:1 Mounting Kit : BB150-H574
    Stages : 1 - 3.25:1 (Same as 4:1 BB150 4:1 Planetary)
    Gear Material : Cold Rolled Steel
    Gear Specs : 0.7mod, 20deg PA
    Weight : 8oz
    Width : 2-7/8 in
    Height : 1-7/8 in
    Depth : 1 in
    Shaft : BB150 4:1 Pinion
    Mounting Holes (12) : #10-32

    Gearbox will be delivered assembled and tested; however, it will need to be disassembled to grease and mount the motor prior to use. No special tools are required, typically only an allen wrench. A small arbor press or bench vise is useful for pushing the pinion onto the motor shaft.

    Prior to use the gearbox must be greased, grease IS NOT INCLUDED and must be purchased separately. We recommend Mobil XHP 222 Special grease; however, most lithium based ball bearing grease can be used. We do not sell grease separately, it can be readily purchased from most local auto parts stores or online suppliers such as MSC, Grainger, and McMaster among others. Custom gearboxes can be supplied greased.

    Standard Gearbox includes two mounting kits. Mounting kits contains everything required to mount 2 motors of the appropriate size including pinion, screws, and lock washers to attach the motor to the gearbox.