MARATHON - Bearing To Handpiece Rear Front & back set.
PARTS for Micromotor #115665

Features:
* 50.000 rpm
* Brushless Handpieces original - Front -
* Front-front #814 #1360
* This handpiece does not use REAR bearings.
8/14 goes on the front ( Inner circle 8mm ) Smaller on top 
13/60 goes on the back  ( inner circle 13mm ) little bit larger on bottom 
* REPLACEMENT PARTS

Package: 2pk , Front & back set.