Update examples/linear_axis/README.md

examples/linear_axis/README.md

@@ -36,7 +36,7 @@ Hardware:
 - 5x M5 nuts
 - 2x M3 nuts
 - 4x Derlin V-wheel
-- 3x 608ZZ bearing
+- 3x 625-2RS bearing
 - 6x T-slot nuts or M5 nuts (for a printed beam)
 
 ## Assembly
@@ -53,7 +53,7 @@ The motor is fastened on the motor attachment using 4 M3 screws.
 
 ![](img/motor.jpg)
 
-For the capstan pulley that sits next to the motor shaft, you should insert two 608ZZ bearings separated by the spacer, this prevents excessive compression on the bearing pair.
+For the capstan pulley that sits next to the motor shaft, you should insert two 625-2RS bearings separated by the spacer, this prevents excessive compression on the bearing pair.
 
 ![](img/capstan_spacer.jpg)
 
@@ -61,7 +61,7 @@ The string is wrapped bottom to top. It's easier to mount the capstan support st
 
 ![](img/capstan.jpg)
 
-On the other end, the pulley is assembled by press-fitting a 608ZZ bearing and assembling the pulley holder onto the grid of holes. Note the slots for tensioning as the last step.
+On the other end, the pulley is assembled by press-fitting a 625-2RS bearing and assembling the pulley holder onto the grid of holes. Note the slots for tensioning as the last step.
 
 ![](img/pulley.jpg)