Enduro 6803 LLB Radial Bearing - 17mm x 26mm x 5mm
Bearings
Enduro 6803 LLB Radial Bearing - 17mm x 26mm x 5mm
Enduro 6803 LLB Radial Bearing - 17mm x 26mm x 5mm
The Enduro 6803 LLB Radial Bearing is a standard design cartridge bearing built to ABEC-3 tolerance standards with C3 internal clearance for the 17mm x 26mm x 5mm profile. Read the overview
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Overview
Is the Enduro 6803 LLB the Right Bearing for Your Application?
The Enduro 6803 LLB Radial Bearing is a standard design cartridge bearing built to ABEC-3 tolerance standards with C3 internal clearance for the 17mm x 26mm x 5mm profile. The LLB seal is a lighter-contact design compared to the heavier LLU seal, reducing drag while still providing effective protection against dust and light moisture ingress. Mobilux NGLI 2 synthetic grease fills 90% of the bearing interior for consistent lubrication across the bearing's service life.
C3 clearance means slightly more internal play than a standard CN clearance bearing, which is specified in applications where press-fit compression or thermal expansion would otherwise reduce bearing clearance to a tight or binding fit. The 17mm x 26mm x 5mm form factor appears in hub flanges, headset cups, and select suspension pivot applications on road, gravel, and mountain bikes. For mechanics who need the specific combination of LLB sealing and C3 clearance in this size, the Enduro 6803 LLB is the correct bearing to order.
All the specs
MPN BB 6803 LLB-BAG
- Bearing Number
- 6803 LLB
- Inner Diameter
- 17mm
- Outer Diameter
- 26mm
- Width
- 5mm
- Tolerance
- ABEC-3
- Internal Clearance
- C3 (greater than standard)
- Seal Type
- LLB (light contact)
- Grease
- Mobilux NGLI 2 synthetic (90% fill)
- Application
- Hubs, headsets, pivots
Good questions
Get to know Enduro
There's more to Enduro than this one product. Our Enduro page has the full Enduro lineup we carry and more about the brand.
Visit the Enduro page →What does C3 clearance mean and when does it matter?
C3 denotes a larger-than-standard internal clearance. It is specified in applications where press-fit installation or operating heat would compress the bearing clearance to a tight or preloaded condition. Using C3 in these situations prevents premature wear and rough rotation.
How does an LLB seal differ from an LLU seal?
LLB is a lighter-contact seal that runs with less drag than the double-contact LLU. It provides good protection against dust and light moisture while generating less friction. LLU offers stronger contamination resistance but at the cost of slightly higher rolling resistance.
Can I use the 6803 LLB in place of a standard 6803?
The outer dimensions are the same, but you should match the clearance spec of the original bearing when replacing. If the original bearing was CN clearance and C3 is specified here, confirm that C3 is appropriate for your application before installing.
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