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FingerTech 3lb Beater Bar Assembly

FingerTech 3lb Beater Bar Assembly

Regular price $44.50
Regular price Sale price $44.50
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Destroy the competition with FingerTech's Beater Bar! This weapon packs a punch. 

See our 3lb Beater Bar Electronics for a perfectly matched motor/ESC combo.

Total assembly weight: 324grams (11.43oz)

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  • Sized for the 3lb "Beetleweight" class
  • Beater Length: 106.7mm (4.2in)
  • 30T pulley with Delrin flanges adds 16.7mm (.657in) to length. Total 123.4mm (4.86in).
  • Beater Height: 50.8mm (2.0in)
  • Beater Thickness: 19.05mm (0.75in)
  • Beater Material: 6061-T6 Aluminum
  • Beater Weight: 149grams (5.26oz)
  • The bar has 4 holes each side for 5/16-18 screw "teeth".
  • Installed teeth add 12.7mm (0.5in) to height. Total 63.5mm (2.5in)
  • Max outside frame width should be 152mm (6in) or less. Frame material thickness of 9.53mm-12.7mm (0.375in-0.5in) works well.


  • 1 - 3lb Beater Bar
  • 1 - 30T S3M pulley (flanged with no hub) with thick outer Delrin Flange
  • 2 - Countersunk 8-32 x 1in screws
  • 8 - "Teeth" 5/16-18 x 0.75in countersunk black oxide screws plus lock washers (Thread-lock is recommended.)
  • 1 - 5/16-24 x 6.5in Gr8 Hex bolt and Nylock Nut "dead shaft"
  • 2 - SCE55 5/16in roller bearings
  • 1 - 3/32 hex wrench for installing pulley
  • 1 - 3/16 hex wrench for installing teeth


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. Visit our Safety Information page for more information.

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