FingerTech Blade Hub

ft-blade-hub

FingerTech

  • $16.99
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We currently have 10 in stock.


FingerTech's Blade Hub is the best way to attach a blade to a shaft. It uses a flange nut to hold the blade tightly (like an angle grinder), meaning you can use off-the-shelf sawblades without needing to drill screw holes into hardened steel! Custom blades can be made stronger by not having those same mounting screw holes.
  • The stepped design allows use of blades with different bore sizes.
  • A clamp mount with two screws attaches the hub to your weapon motor shaft. (Remember to apply thread-lock.) (This replaces the 8-32 setscrew in the previous version.)
  • The hub has a 6-32 threaded hole so that your horizontal spinner robot can rest on a screw head and not be pulled in different directions when the blade spins. Also useful for supporting the hub's far side in vertical spinners.
Specifications:
  • Accommodates blade bores of: 10mm, 16mm (5/8in), 20mm
  • Recommended blade thickness: 1.6mm (0.63in) minimum for 20mm bore. 0.8mm (0.03in) minimum for other bores. 5mm (0.2in) maximum.
  • Material: Anodized 6061 aluminum for high strength and low weight.
  • Hub hex size: 25.4mm (1in)
  • Nut hex size: 24mm (15/16in)
  • Hub height: 14.5mm (0.57in)
  • Clamp Screws: 4-40 x 1/2in Socket Head (requires 3/32" hex wrench)
  • Blade mount screws: 6-32 at 19.90mm (0.78") between centers.
  • Bore diameter: 3.175mm (0.125in), but can be drilled out as big as 6.35mm (0.25in).
  • Weight: 14g (0.494oz)
Installation Tips:
  • Observe the proper spin direction (clockwise looking from the motor side).
  • Use threadlock on both the nut and clamp screws. You do not want your blade coming off!
  • If you can't get your 1" wrench onto the hub when installed, you will want to clamp the hub into a vice so you can tighten the blade before securing the Blade Hub to the motor shaft.
  • As with anything related to combat robots, it is POTENTIALLY DANGEROUS to add a spinning weapon to a robot. NEVER power up the robot outside of a safety enclosure. Always use a safety lock and follow proper activation procedure.

Safety:
As with anything related to combat robots, it is potentially dangerous to add a spinning weapon to a robot. Never power up the robot outside of a safety enclosure. Always use a safety lock and follow proper activation procedure.


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