6904 LLU MAX - MAX-Design - 20mm x 37mm x 9mm AK 1- light-action 30mm wave washer

1- light-action 30mm wave washer

• 52mm master cup with 32mm wrench flats

They keep the dirt out and the oil inside

where there are constantly changing lateral loads on the bearings

This size bearing is also known in the bike Industry by part number HD446K

6904 LLU MAX - MAX-Design - 20mm x 37mm x 9mm AK 1- light-action 30mm wave washer6904 LLU MAX MAX Design, Radial Suspension Bearing 20mm x 37mm x 9mm Enduro Bearings pioneered MAX type bearings over 20 years ago for bicycles to address the challenges associated with mountain bike pivots. MAX type bearings provide 35 40% more load capacity than standard radial bearings by utilizing a special design where the maximum number of balls are inserted into the bearing, via a custom ground slot in the races. The additional balls, combined