R8ZZ bearing
The R8ZZ is a inch-size (R-series) ball bearing with a 1/2 in bore, 1.125 in outside diameter and 0.3125 in width, metal shielded on both sides.
Size & specs
| Type | Inch (R-series) ball bearing |
|---|---|
| Bore (ID) | 1/2 in (12.70 mm) |
| Outside diameter (OD) | 1.125 in (28.57 mm) |
| Width | 0.3125 in (7.94 mm) |
| Seals / shields | ZZ: metal shielded on both sides |
Where to buy
Other versions
Questions
What size is a R8ZZ bearing?
1/2 × 1.125 × 0.3125 in (bore × outside diameter × width).
What does ZZ mean?
ZZ means metal shields on both sides. Shields have less drag than rubber seals and suit higher speeds, but they don't keep out water or fine dust as well.