Bob's 1/43 Slot Car LOW COST Break-In/Run-in Tool

Use your tracks power supply and favorite speed controller for testing 

Lube and break in your gears (check the mesh)
Lube and tune your motor for best performance

Works with all 1/43 cars and tracks tested 
Four Bearings support the two low mass rollers
Neodymium Magnets hold the unit firmly on the track

High Performance Precision Ball Bearings 
Support Low Mass ABS Plastic rollers mounted on (100,000 RPM) ball bearings 
(see bearing specs below)

Bearing Specifications 

  • [Durable] - Chrome Steel (GCr15) races offer high hardness and great wear resistance, thus extend bearings' service life.
  • [Load & Speed] - Dynamic load rating of 95N and static load rating of 26N. The limiting speed is 100000 RPM under grease lubricating.
  • [Easy to Maintain] - Shields on Both sides to keep lubricant in. Z2 noise level for most general use.
  • [Application] - Commonly used for glider/rocker arm, wheel of the cart, lawnmower, printers, fax machines, power tools, and other homemade projects.