RC08Drive Module
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The Drive Module packages the gears, wheel, and motor into an useful robot maneuvering tool.
Parts & Components
Bearings
1/4" Shaft Diameter
- Vendor - McMaster-Carr
- Part No. - 57155K304
- Cost - $6.80 Each
- Description - Miniature Precision SS Ball Bearing - ABEC-5 Flanged Open, .25" ID, .5" OD, .125" Width
- Drawing - File:RC08-MC-57155K304.pdf
Gears
Input
- Vendor - SDP/SI
- Part No. - S1063Z-072A020
- Cost - $9.83 ($6.76 in bulk)
- Description - 0.2778" Pitch Dia, 0.125" Face Width, 0.125" Bore (must bore out to 4mm)
- Drawing -
- Note - Al 2024
Output
- Vendor - SDP/SI
- Part No. - S1086Z-072A100
- Cost - $21.36 ($13.46 in bulk)
- Description - 1.3889" Pitch Dia, 0.187" Face Width, 0.25" Bore
- Drawing -
- Note - Al 2024
Output (Option 2)
- Vendor - SDP/SI
- Part No. - S1066Z-072S100
- Cost - $17.72 ($13.02 in bulk)
- Description - 1.3889" Pitch Dia, 0.125" Face Width, 0.125" Bore (must bore out to 4mm)
- Drawing -
- Note - Stainless 303
Shaft & Etc
1/4" Hex Bar Stock
- Vendor - SDP/SI
- Part No. - A 7C21-0436
- Cost - $4.39 Each ($3.27 in bulk)
- Description - Carbon Steel 36" length
1/4" Hex Broache
- Vendor - McMaster-Carr
- Part No. - 2875A15
- Cost - $105.37
- Description - Hexagon Broach 1/4" Hex, 6" Broach Length
1/4" E-Clips
- Vendor - McMaster-Carr
- Part No. - 97633A130
- Cost - $6.54 (Pack of 100)
- Description - Black-Phosphate Steel External Retaining Ring for 1/4" Shaft Diameter
- Note - Inside of bearings
Other
1/2" Long Stand Off
- Vendor - McMaster-Carr
- Part No. - 91780A195
- Cost - $0.34 Each ($0.27 in bulk)
- Description - Aluminum Female Threaded Hex Standoff 1/4" Hex, 1/2" Length, 8-32 Screw Size
1/4" Flat Socket Cap Screws
- Vendor - McMaster-Carr
- Part No. - 92210A190
- Cost - $11.58 (Pack of 100)
- Description - 18-8 SS Flat Head Socket Cap Screw 8-32 Thread, 1/4" Length
M3 Screws (Drive Motor Mount)
- Vendor - McMaster-Carr
- Part No. - 92005A116
- Cost - $2.16 (Pack of 100)
- Description - Metric Pan Head Phillips Machine Screw Zinc-Plated Steel, M3 Size, 6mm Length, .5mm Pitch
Washer
- Vendor - McMaster-Carr
- Part No. - 98029A026
- Cost - $5.95 (packs of 25)
- Description - Black-Oxide Steel Thick Flat Washer #8 Screw Size, 11/64" ID, 3/8" OD,.052" - .073" Thk
Costs
Per Module (Estimated)
Note you cannot buy materials in small enough quantity. $85.00 + $9.83 + $17.72 + 2*$6.80 + $0.238 + 3*$0.0373 + $0.34*3 + $0.0654*3 + $0.304 + $0.34 = $128.36 --> $140.00
