Strafer Chassis Kit V1(2:1 Ratio Bevel Gear Set (6mm D-Bore Pinion Gear))
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Description
Competition eligibility
Legal for FIRST Tech Challenge (FTC) and FIRST Robotics Competition (FRC). Eligibility is set by each season's game manual — check the current rules before you compete.
The Strafer Chassis Kit is a rigid, low-profile chassis that includes high-torque 312RPM planetary motors, ball-bearing mecanum wheels and a configurable chassis you can tailor to your liking.
Motors
At a glance, you might wonder, where are the motors? Flip it over and you’ll notice the nested 312RPM 7202 Series Planetary Gear Motors. Combined with the 101mm wheels, they give the chassis a theoretical speed of over 5.14 ft/sec. These motors drive all steel miter gears, heavy duty hubs, and ball-bearings ready for some low-friction strafing action!
Miter Gears
The miter gears, located near each of the four corners of the chassis, create a 90° drive so that the motors can nest inside the 3120 Series U-Channel. The miters have been battle-tested, even with brushless motors, and are extremely stout. Don’t worry about slipping as the bores are matched to the profile of the shafts they are mount to.
Bearings
Each 8mm REX shaft is supported in a pair of 8mm REX flanged bearings in order to maximize the torque transferred from the motors to the shafts.
Wheels
The Sheen Robotics Mecanum Wheels are 101mm in diameter, have ball-bearing supported rollers, a narrow profile and steel side plates. Each wheel is only 260g - far less than the competitors. The reduced rotating mass yields quicker acceleration with less strain on the motors.
Frame
The channel framework allows you to pack all these premium parts in without having to clad on to the outside like some frames require. And oh-so configurable - move the center channels, adjust your track-width and more all with the same parts we provide. SPECS
Specs
Motor No-Load Speed @ 12VDC 312 RPM
Mecanum Wheels Number of Rollers per wheel:9
Mecanum Wheels Number of Plates per wheel:2
size:432mm*455.25mm*101.64mm
Technical drawing
Competition eligibility
| FIRST Tech Challenge (FTC) | Legal |
| FIRST Robotics Competition (FRC) | Legal |
Specifications
| Part number | 5209-0001-0001 |
| Weight | 4966g (10.95lbs) |
| Motor Size | RS-555 |
| Motor Type | Brushed DC |
| Motor Nominal Voltage | 12VDC |
| Motor Output Shaft | 6mm D-shaft |
| Motor Gearbox Style | Planetary |
| Motor Gear Ratio | 19.2:1 |
| Motor Connector Type | : 4-Pin Female JST Encoder, Anderson Powerpoles |
| Mecanum Wheels Diameter | 101mm(4 inch) |
| Mecanum Wheels Width | 39.5mm |
| Mecanum Wheels Bearing Type | Rolling Bearing |
| Mecanum Wheels Body material | steel |
| Mecanum Wheels Roller material | Nylon+TPU |
| Bevel Gear | MOD 1.5, Clamping Pinion Bevel Gear (6mm D-Bore, 14 Tooth) and MOD 1.5, Hub Mount Bevel Gear (14mm Bore, 28 Tooth) |
| Miter Gear Ratio | 1:1 |
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