Tube - Filament Wound - Unsanded Fiberglass Outer - Torque - 3.00 x ~3.28 x 12 Inch - - Available up to 144 Inches
There is a $15 cutting charge for each tube ordered that has a length less than the maximum available tube length. The standard cutting tolerance on these tubes is 0.125”.
Please note we cannot control the OD of unsanded filament tubing as tightly as the sanded filament tubing. The listed OD is a theoretical value.
Let your capacity and delivery time concerns wash away. Rock West has 19 spindles on 4 separate winding machines allowing us to produce tubes in lengths up to 230". If this diameter is not a perfect match for your needs, and/or you have unique torque transfer requirements be sure to let us know. We build these parts right here in the USA.
Additional Information
| Application | Torque |
|---|---|
| Shape | Round |
| Materials | Standard Modulus Carbon |
| Pattern | Filament Wound |
| Color | Black |
| Finish | Cello Wrap Gloss |
| Inside Diameter | 3.0 |
| Outside Diameter | 3.28 |
| Wall Thickness | 0.140 |
| Length | 12 |
| Length (max continuous) | 144.0 |
| Linear Density | 0.911 |
| Volumetric Density | 0.055 |
| Weight | 10.938 |
| Primary Fiber | Grafil 34-700 |
| Primary Resin / Hardener | EPON 862/Lindride 6k |
| 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 | 8089000.0 |
|---|---|
| Avg EY Young's Modulus | 5360000.0 |
| GXY Shear Modulus | 4061000.0 |
| X Tensile Yield Strength | 40310.0 |
| X Compressive Yield Strength | 45650.0 |
| Y Tensile Yield Strength | 31270.0 |
| Y Compressive Yield Strength | 37230.0 |
| XY Shear Strength | 40700.0 |
| CTEX | 8.45E-08 |
| CTEY | 1.45E-06 |
| Poisson's Ratio vXY | 0.493 |
| Poisson's Ratio vYX | 0.327 |
- "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
35153-GTRQ-U Rev C
| Ply # | Orientation (degrees) | Location |
|---|---|---|
| 1 | ±45 | Inside |
| 2 | ±15 | ↓ |
| 3 | ±45 | |
| 4 | Hoop | |
| 5 | ±45 | |
| 6 | ±15 | |
| 7 | ±45 | |
| 8 | (Hoop-Fiberglass) | 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.
Technical Specifications
This specific SKU 35153-GTRQ was tested with bonded in yokes and using SFI Specification 43.1. The specification requires these tubes to be tested to a static torque of 2800 lb/ft for 10 seconds and then tested with a cyclic torque of +2500 lb/ft and –1000 lb/ft for 25 cycles. After static and cyclic testing was performed, a destructive failure test was performed and resulted in the sample average torsional strength being 5773 lb/ft. Failure occurred when the adhesive broke and caused the yoke to slip inside the tube. This failure mode was unsatisfactory to us so we decided to insert 2 - ¾” bolts through each of the bonded in yokes and carbon. This test resulted in a slightly higher strength and failure was caused by the adhesive breaking and the bolts being ripped through the carbon.