The following torque measurements are for a static load condition. The torque values listed are for the output of the stage.
2:1 Cartridge
Fails at 185 N⋅m
The MAXPlanetary 2:1 Cartridge (REV-21-2140) is designed for lower torque applications. Due to its lower failure rating, it should generally be placed closest to the input or motor in a multi-stage MAXPlanetary stack. It is ideal for intakes and faster mechanisms that need a small or specific amount of reduction, while keeping the flexibility to quickly swap cartridges and adjust the total ratio.
The following chart shows which gear cartridge configurations are allowable with different motors. Cells shown in GREEN are allowed and cells shown in RED are not allowed.
Gearbox ultimate strength - Failure at 180 NM +/- 5%
3:1 Cartridge
Tested to 290 N⋅m (no failure)
4:1 Cartridge
Fails at 270 N⋅m
5:1 Cartridge
Fails at 240 N⋅m
9:1 Cartridge
Fails at 180 N⋅m
1/2" Hex Socket Output
Fails at 250 N⋅m
1:1 Brake Cartridge
Tested to 1,200 N⋅m (no failure)
Shock loads can cause the gearbox to fail in situations where the steady-state torque is still within allowable limits.
Cantilevered load on the output shaft puts additional stress on the gearbox and will reduce the torque the gearbox can withstand.
Updated charts with 2:1 Cartridge configurations are coming soon!
Please note that this is less than the MAXPlanetary Gearbox can withstand!

