Fingertech bearing blocks

$4.99

“After I switched to bearing blocks for mounting my Silver Sparks, I have not lost a single gearbox after fighting some of the nastiest spinners on the east coast. Glad I made the change.” – Nate Franklin

Bearing Blocks are sold as “Each.” If you need a pair, buy Two!

Bearing blocks can be a critical part of your bot’s durability.  See this post from reddit. for a view of the importance of bearing blocks.

  • This bearing block can be used as a motor mount for 16mm gearmotors (such as Fingertech’s Spark motors) or as a simple bearing block for a 3mm shaft.
  • The bearing works with the Spark Motors by aligning the mounting holes to the Spark mounting holes and offers additional shaft support.

$4.99

10 in stock (can be backordered)

SKU: ft-bearing-block Categories: , , ,
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Product Documents

Specifications

Applications:

This bearing block can be used as a motor mount for 16mm gearmotors (such as Spark motors), or as a simple bearing block for a 3mm shaft. The bearing works with the Spark Motors by aligning the mounting holes to the Spark mounting holes and offers additional shaft support.

Specifications:

  • Height: 19.05mm (0.75in)
  • Width: 25.4mm (1.0in)
  • Thickness: 4.76mm (0.188in)
  • Block Weight: 5grams (0.18oz)
  • Includes pressed-in 3mm shielded ball bearing
  • Twelve 4-40 threaded holes for mounting in many orientations.  Four holes in the face of the block, and two holes in each of the four sides. See CAD Drawing for hole locations.

These are also modifiable.  For example, if you have a 12×10 gearbox, you can mill a slot in these blocks to make mounting them easy!  See below for an example.

Fingertech bearing block, motor mount, showing milled version for a 12x10 gearbox

Requires:

To mount motors to the blocks, use 2-56 x 3/16″ screws for Silver Sparks (not included).  If you have Gold Spark motors, use 2-56 x 1/4″ to mount.
When fastening mounts to a chassis, use 4-40 screws (not included).  Bearing Blocks are conveniently drilled and tapped on all four sides and on the front/back face to accept these screws.  Bearing blocks can also add stability to the chassis, in addition to adding survivability to the motors.

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