Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Loading...
Ratings are based on testing conducted by REV Robotics on the UltraPlanetary system. All load ratings are based on a safety factor of 1.2 to accommodate manufacturing tolerances. The torques listed are for the output of the stage.
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.
Cartridge configuration tables for UltraPlanetary use a red rating system. If the motor and gear ratio combination is highlighted in red, the torque created by the motor can damage the gearbox. Non-highlighted combinations are within acceptable torque ranges.
Nominal gear ratios are used to reference the cartridge for ease of use in the following charts. For actual gear ratios for an individual cartridge, please reference the Actual Cartridge Gear Ratios Table. The final actual gear ratios are indicated in the cells.
When building your gearbox, make sure the highest gear reduction is closest to the motor.
Cartridge | Torque |
---|---|
3:1 Cartridge
Fails at 40 N-m
4:1 Cartridge
Fails at 40 N-m
5:1 Cartridge
Fails at 40 N-m
The REV UltraPlanetary System is a cartridge based modular gearbox designed to handle the rigors of the competition and the classroom. Users can configure a single-stage planetary using one of three different reduction cartridges, build multi-stage gearboxes through stacking individual cartridges together, and choose two different ways for transferring power through the output stage through face mounting to the stage or choosing the length of 5mm hex shaft best suited for the application.
The UltraPlanetary Gearbox Kit (REV-41-1600) includes an input stage and pinion gear pressed onto the REV HD Hex Motor. Building on the ability to iterate and adjust designs easily using the REV Building System, the UltraPlanetary System consists of pre-assembled and lubricated cartridges allowing for swapping gear ratios on the fly and with ease. The system also allows for the user to choose the length of 5mm shaft to fit their application or to face mount a sprocket, gear, wheel, or structure using the REV Motion Pattern on the output stage.
Using the UltraPlanetary Gearbox System with other 550 class motors, like the NEO 550 Brushless motor, requires pressing of an UltraPlanetary 550 Motor Pinion (REV-41-1608) onto the motor, use of the UltraPlanetary 550 Motor Plate (REV-41-1607), along with use of individual cartridge reductions and an UltraPlanetary Female 5mm Hex Output (REV-41-1604).
The UltraPlanetary has a variety of options for mounting with four different brackets available for mounting to REV Extrusion, REV C Channel, or REV U Channel.
The REV Robotics UltraPlanetary Gearbox Kit (REV-41-1600) comes with the following:
REV-41-1291 - HD Hex Motor – QTY 1
REV-41-1608 – UltraPlanetary Pinion Gear (pressed onto REV-41-1291) – QTY 1
REV-41-1607 – UltraPlanetary Mounting Plate – QTY 1
REV-41-1601 – UltraPlanetary Cartridge 3:1 – QTY 1
REV-41-1602 – UltraPlanetary Cartridge 4:1 – QTY 1
REV-41-1603 – UltraPlanetary Cartridge 5:1 – QTY 1
REV-41-1604 – UltraPlanetary Output Stage – QTY 1
REV-41-1609 – UltraPlanetary Hardware Pack – QTY 1
REV-41-1347 – 5mm x 75mm Hex Shaft – QTY 1
Individual stages, hardware, and pinions can be purchased separately to optimize the gearbox for the application. For more information on optimizing gear ratios check the REV DUO Motor Guide.
The REV Robotics UltraPlanetary standard configuration comes with the gearbox deconstructed allowing for the user to modify the total reduction needed for the application. Each cartridge is pre-assembled and lubricated allowing for easier customization. Below are steps for assembling a three stage, nominally 54:1 reduction, gearbox. For specifics on final gear reductions are in Cartridge Details.
The UltraPlanetary Hardware Kit comes with four different lengths of M3 socket head bolts and one length M3 button head bolts for assembling the gearbox. Different lengths of socket head bolts are needed to complete the assembly depending on the number of cartridges chosen. See the table below for more information.
The M3x6mm Set Screw is used to mount 5mm Hex Shaft in the Female Output. This is not needed if a wheel, gear, sprocket, or pulley is face-mounted to the output.
UltraPlanetary Gearbox Cartridges are pre-lubricated and sealed. If during maintenance you find that a cartridge needs more grease, we recommend using a Molybdenum Grease to apply more lubrication such as Synthetic NLGI #2 Molybdenum Grease or MOLYKOTE® G-2008 Synthetic Tool Gear Grease.
For a Three Stage Assembly you will need all of the parts in the UltraPlanetary Gearbox Kit and a 2mm Allen Wrench.
The Output Cartridge of the UltraPlanetary Gearbox allows for two different methods of powering motion by either attaching any length of 5mm hex shaft or attaching a sprocket, gear, pulley, or wheel to the motion pattern on the Output Cartridge. For adding a shaft on the UltraPlanetary Gearbox just loosen the set screw, slide in a hex shaft, and tighten the set screw.
REV wheels, sprockets, and gears all have the motion pattern on them. To attach a REV wheel, sprocket, or gear, line up the motion profile and add M3 hardware to bolt it into place.
When attaching Motion Components directly to UltraPlanetary Output do not insert the M3 set screw into the Female 5mm Hex Output.
The REV Robotics UltraPlanetary System includes the following features:
Three different gear ratio cartridges providing twenty-seven gear ratios ranging nominally from 3:1 to 125:1.
Pre-assembled cartridges for superior performance and ease of use.
Flexible output allowing for the designer to choose shaft length or mounting driven parts directly to the output stage.
The REV Robotics UltraPlanetary Cartridges are nominally 10mm thick and made of a plastic (reinforced nylon) molded ring gear with hardened steel planet and sun gears. Cartridges are pre-assembled and lubricated allowing for more time for iterating designs rather than assembling individual stages of gearbox. Check individual CAD Models for exact dimensions for each cartridge.
Alignment Ribs: Protrusions on the input side of the cartridge to help seat stages of the system together.
Assembly Holes: M3 assembly holes for attaching cartridges to input and output stages.
Input Gear: Sun Gear with a sliding fit for a 13 tooth, M0.55, gear.
Output Gear: 13 tooth, M0.55, carrier gear.
Each cartridge was designed with reliability, durability, and ease of use in mind while having a variety of output ratios when used in combination. Cartridges are referred to at the gear ratio of their closest whole number. For exact gear ratios of individual stages see Cartridge Details.
The REV Robotics UltraPlanetary Output Stage V2 (REV-41-1615) is nominally 17mm thick with 6mm protruding from the casing for output motion. The Output Stage is pre-assembled and made of a plastic (reinforced nylon) molded body with a ball bearing carrying the load of the Female Output Gear. Check the CAD Model for exact dimensions of the Output Stage.
Alignment Ribs: Protrusions on the input side of the output stage to help seat stages of the system together.
Assembly Holes: M3 assembly holes for attaching the output stage to cartridge and input stages.
Input Gear: Piece with sliding fit for a 13 tooth, M0.55, gear.
Female Output Gear: Female 5mm hex output for custom length shafts. Motion pattern present for directly attaching sprockets, gears, structure, and wheels.
When directly attaching Motion Components to the Output Stage, remove the set screw from the 5mm Hex Output
Assembly Type
Hardware Size
Head Type
550 Motor Plate (required for all configurations)
M3x8mm
Button
Output Only
M3x10mm
Socket
1 Cartridge and Output
M3x20mm
Socket
2 Cartridges and Output
M3x30mm
Socket
3 Cartridges and Output
M3x40mm
Socket
5mm Hex Shaft Mounting
M3x6mm
Set
Take the UltraPlanetary Mounting Plate and press it against the motor with pinion.
Take the two M3 x 8mm Button head screws and insert them into the mounting plate. Tighten the mounting plate to the motor.
Take the 5:1 Cartridge and place it onto the input pinon.
Note: Placing a finger on the output of the Cartridge helps for placement.
Repeat the above step with the 4:1 Cartridge and place it onto the output of the 5:1 cartridge.
Note: Placing a finger on the output of the Cartridge helps for placement.
Repeat the above step with the 3:1 Cartridge and place it onto the output of the 4:1 cartridge.
Note: Placing a finger on the output of the Cartridge helps for placement.
Take the Output Cartridge and place it onto the output of the 3:1 Cartridge.
Note: Placing a finger on the output of the Cartridge helps for placement.
Take 6 of the M3 x 40mm screws and insert them into the outer recessed ring of the UltraPlanetary Gearbox. Evenly tighten them in a star-pattern until they are hand tight. Note: Take care not to over tighten the gearbox housing screws. Hand tight is enough to keep the gearbox assembled.
UltraPlanetary Gearbox assembly is complete and ready for mounting and shaft selection.
Note: If using a 5mm Hex Shaft an M3 Set Screw is needed to secure the hex shaft in the output.
Nominal gear ratios are used to reference the product name for ease of use for the following chart. For actual gear ratios please reference the Actual Cartridge Gear Ratios Table.
When building your gearbox make sure the highest gear reduction is closest to the motor. Asterisked cells are omitted as they have a lower gear reduction closer to the motor.
Nominal gear ratios are used to reference the product name for ease of use for the following chart. For actual gear ratios please reference the Actual Cartridge Gear Ratios Table.
REV UltraPlanetary Metal Motor Brackets are nominally 3mm thick and made from 5052 aluminum. Check individual CAD models or drawings for exact dimensions for each bracket. The table below shows all of the UltraPlanetary Mounting Brackets.
The UltraPlanetary Bent Mounting Bracket and the UltraPlanetary Flat Mounting Bracket are designed for use with the REV Extrusion Profile located on the REV 15mm Extrusion and REV Channel.
The UltraPlanetary Outside Mounting Bracket is designed for use with the REV Extended Motion Pattern present on REV Channel. Using the slotted holes of the Extended Motion Pattern allows for a centered location of the hex shaft. Consider using a 5mm Hex Bearing Block when using the U Channel to provide extra support for the shaft.
Part Number
Product Name
Nominal Gear Ratio
Actual Gear Ratio
REV-41-1601
UltraPlanetary Cartridge 3:1
3:1
84:29 (2.89:1)
REV-41-1602
UltraPlanetary Cartridge 4:1
4:1
76:21 (3.61:1)
REV-41-1603
UltraPlanetary Cartridge 5:1
5:1
68:13 (5.23:1)
Flat Mounting Bracket REV-41-1624
Bent Mounting Bracket REV-41-1623
Long Reach Mounting Bracket REV-41-1625
Outside Mounting Bracket REV-41-1621
For adding a Ultra 90 Degree Gearbox you will need all of the parts in the Hardware Kit, a 1.5mm Allen Wrench, and a 2mm Allen Wrench.
This assembly guide assumes you have a fully assembled UltraPlanetary Gearbox mounted to your motor of choice. Please see the UltraPlanetary Gearbox assembly instructions if you do not have a fully assembled UltraPlanetary Gearbox.
With standard REV channel or brackets, the recommended screw length for mounting the Ultra 90 Degree Gearbox to REV motor brackets or channels is M3 x 6mm (REV-41-1713). REV recommends that no more than 4mm of thread engagement is used to mount the gearbox on the motion pattern faces.
Mounts directly to the output of the UltraPlanetary Gearbox
Mounting holes compatible with the REV Motion Pattern
Affix between pieces of channel in a channel drivetrain for a more compact design
Through-bore hex on the output allows positioning the gearbox in the middle of a shaft or using a very long shaft without needing to cut it
Blind socket hex input allows shafts of varying length and also captures the shaft when mounted to the output of an UltraPlanetary Gearbox
Ball bearings located on the input and output for a smooth performance
Assembly Type | Hardware Size | Head Type |
---|---|---|
With an efficient right-angle configuration, the Ultra 90 Degree Gearbox () () offers a robust solution to building a more compact robot. The Ultra 90 Degree Gearbox allows you to connect the UltraPlanetary Gearbox and the HD Hex Motor in a 90-degree orientation for maximum flexibility and ease of use in tight spaces. This versatile gearbox can also be used to transfer power between two 5mm hex shafts that are at a right-angle configuration.
Ultra 90 Degree Gearbox
M3 x 40mm
Socket
Hex Shaft
5mm x 20mm
-
UltraPlanetary Face Mount Spacer
M3 x 40mm
Socket
1) Insert the 20mm long hex shaft into the output of the gearbox.
2) Place the Face Mount Spacer on the output of the the gearbox as shown.
Note: Line up the short edge of the spacer with a flat side of the UltraPlanetary gearbox body.
3) Rotate the hex shaft output so that it lines up with the hex input on the Ultra 90 Degree Gearbox.
4) Slide the two gearboxes together. Rotate the Ultra 90 Degree Gearbox until the spacer and gearbox body line up.
5) Insert the 4 mounting screws in the holes on the end of the Ultra 90 Degree Gearbox. Ensure that they line up with the holes in the spacer and the gearbox.
6) Tighten the 4 mounting screws hand-tight. Then alternate between slightly tightening screws diagonally across from each other in an X shaped pattern.
Note: Take care not to over tighten the mounting screws.
The exterior of the gearbox is completely symmetrical; however, it is NOT symmetrical internally. Depending on the orientation of the gearbox, the bevel gear on the output shaft could be on either side which will affect the rotation direction.
Before installing the gearbox, check the rotation direction by hand and orient it in the direction that produces the desired rotation direction.