The T47 standard paired with SRAM DUB cranks is becoming the gold standard for modern frames. Our T47 DUB BB is built specifically for the 28.99mm DUB spindle — no adapters needed. Grade 3 silicon nitride ceramic bearings with DLC-coated races in oversized aluminum cups. The wider T47 shell provides superior lateral stiffness over BSA, while the threaded interface eliminates the creaking that plagues press-fit systems.
What You Get
- ✓ T47 threaded interface — no press-fit headaches
- ✓ Purpose-built for SRAM DUB 28.99mm spindle
- ✓ Grade 3 Si₃N₄ ceramic balls with DLC-coated races
- ✓ Wider bearing spacing than BSA for improved stiffness
- ✓ Precision-machined 6061 aluminum cups
- ✓ Easy to install and service with T47 tool
Technical Specifications
| Weight |
88g |
| Seal Type |
Dual-lip contact seals |
| Tolerance |
ABEC-7 |
| Cup Material |
6061-T6 Aluminum, anodized |
| Expected Life |
20,000–30,000 miles |
| Race Material |
52100 Chromium Steel, DLC Coated |
| Shell Standard |
T47 (threaded, 47mm x 68mm) |
| Bearing Material |
Grade 3 Silicon Nitride (Si₃N₄) |
| Spindle |
28.99mm (SRAM DUB) |
Compatibility
SRAM Red AXS
SRAM Force AXS
SRAM Rival AXS
Any SRAM DUB crankset
Any T47 threaded frame (68mm or 86mm shell)