Product specifications (Detailed parameter explanation)
1.Basic parameters
Material: High strength aluminum alloy (Light weight and anti-wear)
Color: Metallic primary colors (Custom Anodized colors available, e.g., black/red/blue)
Individual piece dimensions:
Outside diameter (OD): 7.9mm
Inside diameter (ID): 6.3mm (Adaptable to 6mm axle shafts)
Length: 23.5mm (Standard bearing spacing)

2.Compatibility
Adaptable bearings:
ID: 8mm (common 608 bearing size)
OD: 22mm (standard skate bearing size)

Applicable equipment:
Inline skates
Double row skates
Skateboards
Roller equipment (e.g. single/double row skates, industrial rollers)

3.Performance parameters
Resistance reduction design:
Precision turning of the inner wall reduces the friction resistance of the bearing.
Aluminum alloy has excellent thermal conductivity, which reduces the effect of thermal expansion when skating at high speed.

Load capacity:
static load capacity >/= 50kg/piece (theoretical value, the actual need to combine with the bearing performance)

4.Packing details
Quantity contained: 10 tablets/box (can be split for use)

Note
Key parameters: 6.3mm inner diameter to avoid users buying the wrong size.
Compared with plastic shims, aluminum alloy pressure resistance increased by 300per cent.