Load Ratings
MAXPlanetary Cartridge Ratings
Static Load Ratings
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 Nâ‹…m
3:1 Cartridge
Tested to 290 Nâ‹…m (no failure)
4:1 Cartridge
Fails at 270 Nâ‹…m
5:1 Cartridge
Fails at 240 Nâ‹…m
9:1 Cartridge
Fails at 180 Nâ‹…m
1/2" Hex Socket Output
Fails at 250 Nâ‹…m
1:1 Brake Cartridge
Tested to 1,200 Nâ‹…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.
2:1 Cartridge Specifics
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.
Cartridge Configuration
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.
Updated charts with 2:1 Cartridge configurations are coming soon!
REV Motors
Other Motors
MAX 90 Degree Gearbox
Static Load Rating
Gearbox ultimate strength - Failure at 180 NM +/- 5%
Please note that this is less than the MAXPlanetary Gearbox can withstand!