⚙️ Elevate your ride with precision that speaks volumes
These 2PCS 6903 hybrid ceramic ball bearings (17x30x7mm) combine steel races with Si3N4 ceramic balls, delivering ABEC-3 precision and low friction thanks to a PA66 polymer cage and premium grease lubrication—engineered for long-lasting, smooth cycling performance.
| ASIN | B0755W113H |
| Bearing Number | 6903 2RS |
| Bearing Type | Ball Bearing |
| Best Sellers Rank | #203,059 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1,422 in Deep-Groove Ball Bearings |
| Brand | HMMBW |
| Brand Name | HMMBW |
| Compatible Lubricant | Oil, Grease |
| Customer Reviews | 4.2 out of 5 stars 82 Reviews |
| Item Dimensions | 1.18 x 1.18 x 0.28 inches |
| Item Height | 7 millimeters |
| Item Thickness | 7 Millimeters |
| Item Weight | 20 Grams |
| Item dimensions L x W x H | 1.18 x 1.18 x 0.28 inches |
| Manufacturer | Shanghai |
| Material | Si3N4+Bearing Steel |
| Material Type | Si3N4+Bearing Steel |
| Outside Diameter | 30 Millimeters |
| UPC | 711202205307 |
M**S
Good
Quality 100%
D**L
amazing feel, smooth bearings in my bike wheel
they fit perfect, took 10min to replace two bearings in one wheel. much better feeling wheel
M**V
Looks like good bearings
The internal diameter is 16.5 mm, not 17. Unable to install to my bike front hub.
K**N
Prefect Replacement
Perfect replacement for my boy's SunRingle hubs. They spin really nice and got my son back on the trails shredding the gnar without the stock squeaky bearings.
E**Z
Bearings feels already grindy brand new
Bearing quality bad they feel grindy already
M**2
They fit.
They fit and work just fine!
J**L
Decent bearings
Low price on a good product
O**N
I, too, am uncertain if this is anything other than a "standard" 6093RS bearing.
As another review said, the seals were black and had no markings other than 6093RS. Nothing suggests that it is the hybrid advertised. And it certainly does not feel like a ceramic/hybrid bearing. But it does seem to be, at least, a basic 6093 bearing.
Trustpilot
3 weeks ago
5 days ago
