608Z / 608ZZ Bearing — 8×22×7mm ABEC-7 Deep Groove Ball Bearing
$2.14 NZD
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$2.14 NZD
608Z / 608ZZ Bearing — 8×22×7mm ABEC-7 Deep Groove Ball Bearing
Stock amount:
Tax included. Shipping is calculated at checkout.
Urban $40
Rural $60
The 608Z (also sold as 608ZZ) is a single-row deep groove ball bearing built to ABEC-7 precision tolerances. Compact, smooth-running, and widely compatible — the go-to bearing for skateboards, 3D printers, and countless DIY builds where low friction and precise tolerances matter. Pre-greased and ready to install.
Specifications
| Dimensions | 8 × 22 × 7mm |
| Bore Diameter | 8mm |
| Outer Diameter | 22mm |
| Width | 7mm |
| Material | Carbon steel |
| Precision Rating | ABEC-7 |
| Shielding | Metal shield (Z = one side, ZZ = both sides) |
| Lubrication | Pre-greased at manufacture |
608Z and 608ZZ refer to the same bearing — Z means one metal shield, ZZ means shields on both sides. Both variants are stocked and may be sent at random; performance is identical for typical use cases.
Common Uses
Skateboards & inline skates — standard wheel bearing
Scooters — axle and wheel bearings
3D printers — idler pulleys, extruder assemblies & linear motion
Robotics & automation — low-friction pivot and shaft support
Fidget spinners, motors, fans & DIY maker projects
Any application requiring an 8mm bore bearing
Common Questions
608Z vs 608RS — what's the difference?
The 608Z uses metal shields — lower friction and better suited to higher speeds, but less effective at keeping out fine dust and moisture. The 608RS uses rubber contact seals, offering better contamination resistance at the cost of slightly higher drag. For most skateboard and general-purpose use, either works well — the RS is the better choice in dirty or wet conditions, while the Z excels in clean, higher-speed applications.
What does ABEC-7 mean?
ABEC is a precision rating scale for bearings — the higher the number, the tighter the manufacturing tolerances. ABEC-7 is a high-precision rating, meaning tighter dimensional tolerances and smoother, more consistent running compared to lower-rated bearings like ABEC-1 or ABEC-3. This makes it well suited to applications where smooth rotation and low runout matter.
Can I clean and re-grease this bearing?
Yes — the metal shields can be carefully removed with a thin pick or blade. Flush out the old grease with a solvent, allow it to dry fully, then repack with your preferred bearing grease before replacing the shields.
Please note: Carbon steel construction is not suitable for wet or highly corrosive environments — consider a stainless steel variant for those applications. Please allow ±1–3mm measurement tolerance due to manual measurement.