Attention:
No shaft inner hole 35mm, step 11mm, 2 bearings, matching shaft diameter M12, thread length without nut 20mm, all wheels modulation treatment, blue wheel hardness 28-32℃, hard chrome plated wheel hardness 65℃, unilateral thickness 4-5cmm (adjustable width 1-15mm, custom parts please contact customer service)
Picture:
With bearing