Tube - Filament Wound - Unsanded Fiberglass Outer - Torque - 2.50 x ~2.78 x 12 Inch - - Available up to 182 Inches

P/N: 35152-GTRQ-U

Available On Backorder

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”.

P/N: 35152-GTRQ-U

Available On Backorder

$1,835.02

Select Length below

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Units:

Project Details

Quantity Needed

Quantity must be greater than 1.

Full Length

Custom Length

Length ([tolerance value] max)

Please select a valid length.

Precision of Measurement

±[tolerance value]

Please select a tolerance option.

No Sanding - Product comes in original finish
Standard Sanding - Matte, smooth finish that is paint/bond ready
- ~0.005 reduction on outer diameter (OD)."
- This removes the outer cello wrap gloss finish.
Custom Sanding - Need to meet a specific outer diameter
- Sand outer diameter to specified thickness.
- Patterns will likely distort in appearance
Final OD ([min] - [max])
Please select a value within the allowed range.
Sanding Tolerance Options:
- ±[tolerance value]
Please select a tolerance option.

If you are requesting bulk discounts, cutting, or standard sanding services only, we will send you a cart with your product selections. You may enter your shipping information and purchase directly at that time. Please note, the cart will not allow edits to the quote. Any changes will have to be completed by our team. If we do not have enough information to complete your quote we will reach out to you directly. If you are requesting additional services or custom sanding, a team member will reach out to you to finalize a quote.

If you request a custom length you will be charged for a full length item (or items if more than 1 is needed to meet your request) plus a cutting fee. You will then be shipped the item sized to your specification and any remaining length of the orginal item (drops). Sanding also incurs a fee which will be included in the quote. All items that have been sanded or cut may not be returned.

Additional Notes or Services Needed (Assembly, Bonding, Etc.) Timeline

Create a Rock West Composites account to build your own customizations.

Estimated lead time for quantities greater than what is Available Now is expected to be between 2 and 4 weeks.

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 13 spindles on 3 separate winding machines allowing us to product tubes in lengths up to 230". If this diameter is not a perfect match for your needs, and or you have a unique torque transfer need be sure to let us know. We build these parts right here in the USA.

Additional Information

Units:

Application	Torque
Shape	Round
Materials	Standard Modulus Carbon
Pattern	Filament Wound
Color	Black
Finish	Cello Wrap Gloss
Inside Diameter	2.5
Outside Diameter	2.78
Wall Thickness	0.140
Length	182
Length (max continuous)	182.0
Linear Density	0.766
Volumetric Density	0.055
Weight	12.436666666667
Primary Fiber	Grafil 34-700
Primary Resin / Hardener	EPON 862/Lindride 6k
Temperature Rating (F)	250.0
Max Operating Temp- (Tg)	250F to 274F
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.

Units:

Avg EX Young's Modulus	8028000.0
Avg EY Young's Modulus	5355000.0
GXY Shear Modulus	4090000.0
X Tensile Yield Strength	40560.0
X Compressive Yield Strength	45820.0
Y Tensile Yield Strength	31150.0
Y Compressive Yield Strength	36950.0
XY Shear Strength	41090.0
CTEX	8.95E-08
CTEY	1.44E-06
Poisson's Ratio vXY	0.496
Poisson's Ratio vYX	0.331

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

Units:

Deflection & Failure of Round Cantilevers

Inputs

Notes:

A green highlight indicates a valid input.
A red box indicates an invalid input.
Part weight is taken into account for all calculations

Label	Value	Units
Point Load	Positive value for downwards force. Negative value for upwards force.	Pounds
Distributed Load (total)	Positive value for downwards force. Negative value for upwards force.	Pounds
Outer Diameter		Inches
Inner Diameter		Inches
Location of Point Load	Number between 0 and the value for Length This is a required field.	Inches
Length	Value up to	Inches

Outputs

Notes:

A green highlight indicates that a sample is unlikely to fail in this manner.
A red highlight indicates that a sample is likely to fail in this manner.

Label	Result	Units
Max Shear Stress		PSI
Max Bending Stress		PSI
Deflection at Point Load		Inches
Max Deflection Location		Inches
Max Deflection		Inches
Deflection at Free End		Inches
Part Weight		Pounds

Deflection & Failure of Simply Supported Round Beams

Inputs

Notes:

A green highlight indicates a valid input.
A red box indicates an invalid input.
Part weight is taken into account for all calculations

Label	Value	Units
Point Load	Positive value for downwards force. Negative value for upwards force.	Pounds
Distributed Load (total)	Positive value for downwards force. Negative value for upwards force.	Pounds
Outer Diameter		Inches
Inner Diameter		Inches
Location of Point Load	Number between 0 and the value for Length This is a required field.	Inches
Length	Value up to	Inches

Outputs

Notes:

A green highlight indicates that a sample is unlikely to fail in this manner.
A red highlight indicates that a sample is likely to fail in this manner.

Label	Result	Units
Max Shear Stress		PSI
Max Bending Stress		PSI
Deflection at Point Load		Inches
Max Deflection Location		Inches
Max Deflection		Inches
Part Weight		Pounds

Round Tubes and Rods - Axial Tension and Compression

Notes

Tension uses positive notation and compression uses negative notation.
End conditions are critical when considering buckling:
- Fixed = constrained in both translation and rotation.
- Pinned = constrained only in translation (ie. bolted joints).
- Free = not constrained (similar to a cantilevered end).
Long, skinny parts in compression are more succeptible to fail in buckling
Only parts in compression can fail in buckling

Inputs

Notes:

A green highlight indicates a valid input.
A red box indicates an invalid input.

Label	Value	Units
Load	Positive value indicates tension. Negative value indicates compression.	Pounds
Outer Diameter		Inches
Inner Diameter		Inches
Length	Value up to	Inches
End Conditions		N/A

Outputs

Notes:

A green highlight indicates that a sample is unlikely to fail in this manner.
A red highlight indicates that a sample is likely to fail in this manner.

Label	Result	Units
Max Axial Stress		PSI
1st Order Buckling Critical Load		Pounds
Change in Length		Inches (linear elastic only)
Part Weight		Pounds

Round Tubes and Rods - Critical Speed and Torque

Inputs

Notes:

A green highlight indicates a valid input.
A red box indicates an invalid input.

Label	Value	Units
Outer Diameter		Inches
Inner Diameter		Inches
Length	Value up to	Inches
Applied Torque		Foot-Pounds
Configuration		N/A

Outputs

Notes:

A green highlight indicates that a sample is unlikely to fail in this manner.
A red highlight indicates that a sample is likely to fail in this manner.

Label	Result	Units
Max Allowable Torque		Foot-Pounds
Twist Angle at Specified Torque		Degrees
Critical Speed _{(no factor of safety)}		RPM
Part Weight		Pounds

Layup Orientation

35152-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 Data

This 2.5” ID tube SKU 35152-GTRQ, was tested in a destructive failure test where the universal joints were removed and the shafts placed in a “pinned” yoke fixture. This destructive testing resulted in a sample average torsional strength to be 3267 lb/ft. Failure occurred in the tube when the adhesive broke and caused the yoke to slip inside the tube. This failure mode was unsatisfactory to us so we tested again with a ¾” bolt inserted 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 bolt being ripped through the carbon.

Tolerances

STOCK TOLERANCE SHEET

Download PDF

Layup Orientation

35152-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.