BB Shell - PF24 / PF41 - 41 x 47 x 86.5 mm
~3.4” ◾ 86.5mm
1
$261.99
2
-
4
$259.79
5
-
9
$79.59
10
+
$31.39
Estimated lead time for quantities greater than what is Available Now is expected to be at least 4 weeks.
BB Shell - PF24 / PF41 - 41 x 47 x 86.5 mm
Tube - BB Shell - PF24 / PF41 - 41 x 47 mm
Additional Information
| Application | Bicycle |
|---|---|
| Frame Segment | Bottom Bracket Shell |
| Shape | Round |
| Materials | Standard Modulus Carbon |
| Pattern | Unidirectional |
| Color | Black |
| Finish | Sanded Smooth |
| Inside Diameter | 1.614 |
| Outside Diameter | 1.85 |
| Wall Thickness | 0.118 |
| Length | 3.406 |
| Length (max continuous) | 3.406 |
| Linear Density | 0.424 |
| Volumetric Density | 0.055 |
| Weight | 0.12 |
| Primary Fiber | Tenax UTS50 |
| Primary Resin / Hardener | Eporite EHM32 |
| HTS - Harmonized Tariff Code | 6815.13.0000 |
Engineering Properties
All laminate properties and mechanical calculations are based on Classical Lamination Theory and should be used as a reference only. Rock West Composites does not guarantee these properties or calculations.
| Avg EX Young's Modulus | 1.434E7 |
|---|---|
| Avg EY Young's Modulus | 5717000.0 |
| GXY Shear Modulus | 2036000.0 |
| X Tensile Yield Strength | 87920.0 |
| X Compressive Yield Strength | 107400.0 |
| Y Tensile Yield Strength | 31400.0 |
| Y Compressive Yield Strength | 40540.0 |
| XY Shear Strength | 18810.0 |
| CTEX | -2.85E-08 |
| CTEY | 2.20E-06 |
| Poisson's Ratio vXY | 0.188 |
| Poisson's Ratio vYX | 0.075 |
Note:
- "X" is along the length of a tube, rod, plate, or panel.
- "Y" is around the perimeter of a tube, perpendicular to the length of pultruded parts, or along the width of a plate or panel.
Calculators
All laminate properties and mechanical calculations are based on Classical Lamination Theory and should be used as a reference only. Rock West Composites does not guarantee these properties or calculations.
Layup Orientation
45295-C86 Rev NC
| Ply # | Orientation (degrees) | Location |
|---|---|---|
| 1 | (0/90 120 E-Glass Scrim) | Inside |
| 2 | (0/90 120 E-Glass Scrim) | ↓ |
| 3 | 0 | |
| 4 | 0 | |
| 5 | 0 | |
| 6 | 45 | |
| 7 | -45 | |
| 8 | 0 | |
| 9 | 0 | |
| 10 | 90 | |
| 11 | 90 | |
| 12 | 0 | |
| 13 | 0 | |
| 14 | 90 | |
| 15 | 90 | |
| 16 | 0 | |
| 17 | 0 | |
| 18 | -45 | |
| 19 | 45 | |
| 20 | 0 | |
| 21 | 0 | |
| 22 | 0 | Outside |
- 0° fibers maximize bending stiffness and run along the length of the part. Consider bending a tube over your knee.
- 45° fibers maximize torsional stiffness and are typically plied together in an opposing manner, i.e. ±45°. Consider twisting a tube like a vehicle's driveshaft.
- 90° (or "hoop") fibers maximize crushing stiffness and generally assist in overall durability. Consider laying a tube on the ground and stepping on it.
Tolerances
All bottom bracket shells have the following tolerance for inner and outer diameter.
ID: ±0.001" (±0.025mm), OD: ±0.003" (±0.075mm)