Just Cuz Robotics Custom Weapon Shoulder Bolts
$10.00
Upgrade Your Robot with Custom-Made Just ‘Cuz Robotics JCR-4935 Shoulder Bolts
Designed for the JCR-4935 Motor, but Versatile for Many Combat Robotics Applications
“Jeez”, you’re probably asking yourself, “Custom bolts? Isn’t that overkill? Screw threads date back to Archimedes!” No. Custom bolts in this case are not overkill, to the contrary– this teeny little innovation can make a big difference in your world-class robot’s performance. These bolts are specifically designed to be used with blades that can accept a shock-absorbing TPU spacer. Even more important, they have also been specifically designed for this exact motor so the threads don’t intrude on the motor chamber and damage the motor.
The Just Cuz Robotics JCR-4935 Shoulder Bolts are the exact bolts designed for shock-isolated blade mounting onto the JCR-4935 motor in concert with a 3D Printed TPU sleeve.
Key Features:
| Feature | Description |
|---|---|
| Extra-Wide Flanged Head | 13mm flanged head allows for the use of a thick TPU sleeve around the shoulder. |
| Shoulder Design | Allows bolts to be tightened down without clamping the heads against the blade, so the blade can slide freely to decouple it from the motor can. |
| Short Thread Length | CRITICAL! The short thread length prevents damaging coils of the motor like a standard size bolt would. |
| Strength | Grade 12.9: ~2.5X the strength of stainless steel |
These features means less shock transfer into the motor and a lower chance of damage from a huge hit!
Perfect results for a very small investment- get the shoulder bolts that were designed for the motor.
Elevate your robot’s performance with Just ‘Cuz Robotics’ custom-made shoulder bolts. Order now and experience the difference!
16 in stock (can be backordered)
Product Documents
Specifications
| Specification | Details |
|---|---|
| Shoulder Diameter | 6mm (actual 5.928-6.00mm) |
| Shoulder Length | 8mm |
| Head Diameter | 13mm +/- 0.2mm |
| Head Height | 3.8mm +/- 0.2mm |
| Thread | M5x0.8, 5.7mm length max |
| Drive | 3mm Hex (Same as M5 flat-head and button-head screws) |
| Weight | ~5.56g (0.196oz) each |
| Qty per pack | 4 |
The minimum ultimate tensile strength of the Grade 12.9 Metric Bolts is about 1242 Mpa or 180,000 PSI, making them the highest grade of bolts produced, about 2.5 times stronger than stainless steel.
These shoulder bolts have a precision ground bearing surface and are perfect for use with 6mm inner diameter bushings, bearings, and more.
Intended for blades no more than 8mm (0.315 in) thick, with TPU or metal spacers taking up the extra height of thinner blades.
4935 motor and blade pictured for reference, no motor or blade included.
ItGresa Robotics is proud to support the builder community by offering and marketing their products. Just ‘Cuz Robotics has quickly become known for both incredible product innovation and technical support for the community through their great videos. We are proud to be one of the very first distributors to partner with them and help bring their incredible products to a broader market.
