SET 12 BEARINGS STD SKATES 628 RSS SKATE RATED "DEEP GROOVE"

BEARINGS STD SKATES 628 RSS SKATE RATED "DEEP GROOVE"

12 pieces

ABEC CALIBRATING VS. SKATE RATED CALIBRATING

Skate Rated calibration is based on a specific mechanical adjustment designed to withstand the forces involved in skating.

1. Radial Clearance:

In the industry (ABEC), the goal is to have no space between the balls and races to avoid vibrations. For skates, this is a mistake.

Calibration: The space between the balls and the races of the wheels is taken into account.

Skate Rated calibration intentionally leaves a clearance. This prevents the bearing from seizing up when a little dirt gets in or when heat expands the metals during intense outdoor training.

2. Lateral Load Capacity:

The ABEC standard assumes that the force is always frontal (like a fan). A skater exerts brutal lateral forces when turning.

Calibration: The bearing raceways have deeper grooves to prevent the balls from slipping off the axle or "biting" the metal when subjected to lateral pressure.

3. Groove Depth

Calibration: While an ABEC 9 bearing has narrow grooves, a bearing calibrated for skateboarding deepens and widens the ball grooves to increase structural stability against impacts (falls, jumps, and tricks).

Summary

STD Skates offers these three Skate Rated options:

1. Beginner: Balanced calibration between speed and impact resistance, “STANDARD”.

2. Precision: Calibration with finer tolerances for maximum inertia (they roll longer without pushing off), very deep grooves, “DEEP GROOVE”.

3. Competition: Calibration focused on minimal friction, with mirror-polished balls and ceramic-coated chrome, “CERAMIC”.