Seismic Fullspin 10mm Steel XT Built-In Skateboard Bearings (8 Pk)

Seismic Fullspin 10mm Steel XT Built-In Bearings (integrated spacers & speedrings). A favorite among longboarders for downhill and freeride. Designed for use with specific 10mm axle trucks only (ie: Surf Rodz, Old Bear Smokey...). The ultra-precise spacers ensure perfect alignment and secure fit within the wheels. The Fullspin bearings are remarkably durable and high-performing, with excellent dust resistance. Speed, acceleration, and control are all top-notch. Featuring 7 extremely durable steel balls with imperceptible friction. Equivalent to Abec 9 or higher quality. Set of 8 bearings.

7-Ball system – Best overall balance of speed and resistance to frequent impacts and side loads. Recommended for high-speed turning / sliding and all style / trick disciplines.
Premium Steel balls – Superior Grade G10 balls spin truer with less friction inside bearings.
Exceptionally tight, consistent assembly and raceway tolerances – Significantly less internal play, friction, wear, and noise. Superior speed, handling, and durability.
Extra-tough steel and thicker outer rings – Raceways hold strictest curvature and finest surface finish – and bearings stay tight and fast – for far longer. Thicker, 60%-stiffer outer rings resist flexing, spin truer and faster, and keep seals from popping off on extreme impacts. Premium black oxide surface treatment adds exceptional corrosion resistance.
Next-level patented Built-In spacing / alignment system – Built-in half-spacers with extra-wide flanged ends square up inside wheels with more than double the contact area of ordinary Built-In interfaces – powering absolutely unparalleled alignment precision and stability. System levels and steadies all working components of seated bearings far better than any other design (Built-In or Classic), to unleash near-perfectly optimized paired performance. Synergizes with all advanced features in individual bearings to maintain exceptionally consistent wheel contact and grip; support extremely predictable slide performance; and noticeably extend both wheel and bearing life.
High-end lubricant – Formulated for peak performance under real-world skating stresses (not max free-spin time).
Labyrinth-style outer seals – Edges of seals slot inside V-shaped grooves for maximum resistance to dust and debris.
Next-level anti-contaminant ball retainers – Expanded outer diameter slots into groove in outer ring just like a second seal, to form a unique integral barrier against dirt and grime.

Warning! Bearing made for 10mm axle trucks (Surf Rodz, Magun, some old Bear precision trucks,..). Do not fit on most of the common trucks (Paris, Caliber, Zealous, Don't Trip, Luxe, Atlas,...)