Revolution Design 3040-2 - Ultra Bearing Set for Yokomo YZ-4 (38pcs)

Ultra Bearing Set for Yokomo YZ-4 (38pcs)

The Set contains:

4 pieces ca. 8x15x4mm Ball bearing
2 pieces ca. 5x13x4mm Ball bearing 
5 pieces ca. 5x8x2.5mm Ball bearing
7 pieces ca. 3x7x3mm Ball bearing
20 pieces ca. 5x10x4mm Ball bearing
The Ball bearings all have one steal sealed and one rubber sealed side.
The rubber sealed side is used for maximum protection from dust and dirt.
The steal sealed side is used for maximum smoothness.

Our recommendation: The rubber sealed side should always be mounted that it faces outwards. Example Hub Bearings: The rubber faces outwards, the stealside faces inwards.