WCP DS Gearbox
The West Coast Products DS Gearbox is the lightest Dog-Style shifting gearbox on the market. Like all West Coast Products items this gearbox is easily adaptable into a West-Coast style drivetrain, or into a conventional skid steer drivetrain.
The Dog itself has been modified, it is now made from solid 4140 steel, and is about 50% thicker across its thinnest cross-section. These changes make the new DOG extremely strong, and allows teams to drill out the DOG, for a roll pin, if desired.
DS Gearbox has multiple CIM motor mounting positions to allow for different sized pinions. There are now 4 possible pinion options, 2 possible input gear options, and 3 standard gear kits. This gives a total of 18 ratio options for the DS Gearbox. (Additional non-standard ratios are possible using other VEXpro gears.)
We know more and more teams are trying to harness their drivetrain motors for other mechanisms, and as such we want to make it easy for teams to integrate a PTO into their robot. The WCP engineers got the chance to design their first item utilizing the VEXpro VersaKeys —the VersaDog. Using the VersaDog, teams can utilize any VEXpro gear, sprocket, or pulley to power their additional mechanisms.
If you require help building your WCP DS Gearbox, hover over each of the underlined headers below for more information.
- Options for either two or three CIM-style motor inputs
- Standard output or specialized West Coast Drive Mounting (includes WCD bearing block)
- Extended length output shaft can be cut by teams to match their configuration
- Mount to VersaChassis & direct drive any WCP or VEXpro wheel
Note: A pneumatic shifting cylinder and fitting kit is not included in the WCP DS kit. Be sure to add these below in the "Pneumatic Cylinder & Fitting Options" category if needed.
2.06 Spread Ratio
| Gear Choices | Lead Output Speeds (feet per second) | ||||||||||
| Pinion | Input | Input Low | Dog Low | Input High | Dog High | 3.25" Low | 3.25" High | 4" Low | 4" High | 6" Low | 6" High |
| 11 | 42 | 14 | 60 | 24 | 50 | 4.5 | 9.0 | 5.5 | 11.0 | 8.0 | 15.5 |
| 12 | 42 | 14 | 60 | 24 | 50 | 5.0 | 10.0 | 6.0 | 12.0 | 9.0 | 17.0 |
| 13 | 42 | 14 | 60 | 24 | 50 | 5.5 | 10.0 | 6.5 | 13.0 | 9.5 | 18.0 |
| 14 | 42 | 14 | 60 | 24 | 50 | 6.0 | 11.0 | 7.0 | 13.5 | 10.0 | 18.5 |
| 13 | 42 | 14 | 60 | 24 | 50 | 5.5 | 11.0 | 7.0 | 13.5 | 10.0 | 18.5 |
| 14 | 42 | 14 | 60 | 24 | 50 | 6.0 | 11.5 | 7.5 | 14.0 | 11.0 | 19.0 |
2.92 Spread Ratio
| Gear Choices | Lead Output Speeds (feet per second) | ||||||||||
| Pinion | Input | Input Low | Dog Low | Input High | Dog High | 3.25" Low | 3.25" High | 4" Low | 4" High | 6" Low | 6" High |
| 11 | 42 | 14 | 60 | 30 | 44 | 4.5 | 12.0 | 5.5 | 15.0 | 8.0 | 20.0 |
| 12 | 42 | 14 | 60 | 30 | 44 | 5.0 | 13.0 | 6.0 | 16.0 | 9.0 | 20.5 |
| 13 | 42 | 14 | 60 | 30 | 44 | 5.0 | 13.5 | 6.5 | 17.0 | 9.5 | 21.0 |
| 14 | 42 | 14 | 60 | 30 | 44 | 5.5 | 14.5 | 7.0 | 18.0 | 10.0 | 21.5 |
| 13 | 42 | 14 | 60 | 30 | 44 | 5.5 | 14.0 | 7.0 | 18.0 | 10.0 | 21.5 |
| 14 | 42 | 14 | 60 | 30 | 44 | 6.0 | 15.0 | 7.5 | 18.5 | 11.0 | 21.5 |
3.64 Spread Ratio
| Gear Choices | Lead Output Speeds (feet per second) | ||||||||||
| Pinion | Input | Input Low | Dog Low | Input High | Dog High | 3.25" Low | 3.25" High | 4" Low | 4" High | 6" Low | 6" High |
| 11 | 42 | 14 | 60 | 34 | 40 | 4.5 | 9.0 | 5.5 | 11.0 | 8.0 | 15.5 |
| 12 | 42 | 14 | 60 | 34 | 40 | 5.0 | 10.0 | 6.0 | 12.0 | 9.0 | 17.0 |
| 13 | 42 | 14 | 60 | 34 | 40 | 5.0 | 10.0 | 6.5 | 13.0 | 9.5 | 18.0 |
| 14 | 42 | 14 | 60 | 34 | 40 | 6.0 | 11.0 | 7.0 | 13.5 | 10.0 | 18.5 |
| 13 | 42 | 14 | 60 | 34 | 40 | 5.5 | 11.0 | 7.0 | 13.5 | 10.0 | 18.5 |
| 14 | 42 | 14 | 60 | 34 | 40 | 6.0 | 11.5 | 7.5 | 14.0 | 11.0 | 19.0 |
Base Kit (217-3423)
WCD Version (217-3422)
The WCP DS includes the option to come in a "West Coast Drive" (or "WCD") configuration. This style features additional space for a set of sprockets or pulleys to be contained within the gearbox assembly itself, bringing them close to the drive frame and making it easy to create a "West Coast"-style cantilevered drivetrain.
- (1)Â 60t Dog Gear
- (1) 42t Gear with 3/8" Hex
- (1)Â 14t Gear with 3/8" Hex bore (Steel)
- (2) WCP DS - Gearbox Plate
- (1) WCP DS - Standard Input Shaft
- (1) WCP DS - Standard Output Shaft
- (1) WCP DS - Shifter Shaft
- (1) WCP DS - Shifter Dog Kit
- (1)Â WCP DS Pneumatic Hardware Kit
- (1) WCP DS - Dual Speed Bearing Kit
- (1) WCP DS - Shim - .501" ID x .750" OD
- (2) 1/8" Acetal Spacer - 3/8" Hex (10-pack)
- (1) 1/16" Acetal Spacer - 3/8" Hex (10-pack)
- (1) 1/16" Acetal Spacer - 1/2" Hex (10-pack)
- (1) 60t Dog Gear
- (1)Â 42t Gear with 3/8" Hex
- (1)Â 14t Gear with 3/8" Hex bore (Steel)
- (2) WCP DS - Gearbox Plate
- (1) WCP DS - WCD Input Shaft
- (1) WCP DS - Standard Output Shaft
- (1) WCP DS - WCD Hardware Kit
- (1) WCP DS - Shifter Dog Kit
- (1)Â WCP DS Pneumatic Hardware Kit
- (1) WCP DS - Dual Speed Bearing Kit
- (1) WCP DS - Gearbox Bearing Block
- (1) WCP DS - Shim - .501" ID x .750" OD
- (1) 1/4" Acetal Spacer - 1/2" Hex (10-pack)
- (1) 1/8" Acetal Spacer - 1/2" Hex (10-pack)
- (2) 1/16" Acetal Spacer - 1/2" Hex (10-pack)
- (2) 1/16" Acetal Spacer - 3/8" Hex (10-pack)
- (1) 60t Dog Gear
- (1)Â 42t Gear with 3/8" Hex
- (1)Â 30t Gear with 1/2" Hex
- (1)Â 14t Gear with 3/8" Hex bore (Steel)
- (2) WCP DS - 3 CIM Gearbox Plate
- (1) WCP DS - Standard Input Shaft
- (1) WCP DS - Standard Output Shaft
- (1) WCP DS - 3 CIM Combiner Shaft
- (1) WCP DS - 3 CIM Gearbox Plate
- (1) WCP DS - Shifter Rod
- (1) WCP DS - Hardware Kit
- (1) WCP DS Pneumatic Hardware Kit
- (1) WCP DS - Dual Speed Bearing Kit
- (2) WCP DS - Standard Bottom Spacers
- (1) WCP DS - Shim - .501" ID x .750" OD
- (1) 1/2" Acetal Spacer - 1/2" Hex (10-pack)
- (2) 1/8" Acetal Spacer - 3/8" Hex (10-pack)
- (1) 1/16" Acetal Spacer - 3/8" Hex (10-pack)
- (1) 1/8" Acetal Spacer - 1/2" Hex (10-pack)
- (1)Â 60t Dog Gear
- (1)Â 42t Gear with 3/8" Hex
- (1)Â 30t Gear with 1/2" Hex
- (1)Â 14t Gear with 3/8" Hex bore (Steel)
- (2) WCP DS - Gearbox Plate
- (1) WCP DS - WCD Input Shaft
- (1) WCP DS - Standard Output Shaft
- (1) WCP DS - 3 CIM Combiner Shaft
- (1) WCP DS - 3 CIM Gearbox Plate
- (1) WCP DS - Shifter Rod
- (1) WCP DS - WCD Hardware Kit
- (1) WCP DS Pneumatic Hardware Kit
- (1) WCP DS - Dual Speed Bearing Kit
- (1) WCP DS - Gearbox Bearing Block
- (2) WCP DS - WCD Bottom Spacers
- (1) WCP DS - Shim - .501" ID x .750" OD
- (1) 1/2" Acetal Spacer - 1/2" Hex (10-pack)
- (2) 1/16" Acetal Spacer - 3/8" Hex (10-pack)
- (2) 1/16" Acetal Spacer - 1/2" Hex (10-pack)
- (1) 1/8" Acetal Spacer - 1/2" Hex (10-pack)
- (1) 1/4" Acetal Spacer - 1/2" Hex (10-pack)
- (1) WCP DS - VersaDog
- (1) WCP DS - Shifter Dog Kit
- (1)Â WCP DS Pneumatic Hardware Kit
- (1)Â WCP DS - Standard Output Shaft
- (1)Â Radial Bearing - 0.500" x 1.125" x .313"
- (1)Â 1/8" Acetal Spacer - 1/2" Hex
- (1)Â 1/4" Acetal Spacer - 1/2" Hex
- (1)Â 1/16" Acetal Spacer - 1/2" Hex
- (1) 1/2" Retaining Ring
- (2) Screw, #10-32 x .313 Button head cap
- (1) WCP DS - Shim - .501" ID x .750" OD
- Gears - 7075 T6 Aluminum with teflon infused ceramic coating
- Shafts - 7075 T6 Aluminum
- Plates & Spacers - 6061 T6 Aluminum
- Bearing Block - 6061 T6 Aluminum
- DOG - 4140 Steel
Sample Configurations:
WCP DS, 2.92 Spread Kit, 11T pinions - 1.93 lbs
WCP DS WCD, 2.92 Spread Kit, 11T pinions - 2.15 lbs
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