GEM500 Gearbox, 2 stage am-0270

Multi-stage, modular, epicyclic gearbox (aka: planetary gearbox)

This gearbox is shipped with 2 stages included: the base housing stage and one stacked stage. Theoretically, an infinite amount of stages could be stacked on this gearbox.

This gearbox is designed to be used with the 2.5 inch CIM Motor (not included).

Specifications

Weight: 2.4 pounds

Weight of 1 Stage: 0.7 pound

Body Material: 6061 Aluminum

Output Shaft: 0.500 inch with 1/8" keyway, 4140 Steel, used as the same piece as the planet carrier (no joint)

Gear Ratios

Each stage has a ratio of 3.67:1.

Base Stage: 3.67:1

Two Stages: 13.5:1

Three Stages: 45.4:1 (with 1 Stage added)

Four Stages: 181.4:1 (with 2 Stages added)

Gears

Material: 4140 steel, case hardened

20 DP

14.5 degree pressure angle

Face width: 0.30 inch

NOTE: When utilizing only 1 stage of this gearbox combined with a CIM motor, the shaft of the CIM motor must be cut off right past the Sun Gear.

A GEM Bracket is available for mounting purposes.

Downloads

GEM500-2-stage.pdf Layout print for 2-stage GEM500
GEM500-2-stage.stp 3D CAD model (.stp) assembly file for 2-stage GEM500(right click and "save as")
GEM500-4-stage.stp 3D CAD model (.stp) assembly file for 4-stage GEM500 (right click and "save as")