TU4180 – Tubing – Tube Dia 4.100″ – Tube Length 72″ – Tube Wall 0.180

The TU4180 driveshaft tube is the raw tube stock for custom or replacement driveshaft fabrication. It's steel DOM — 4.100"" OD x 0.180"" wall — sold per foot and cut to your specification. The TU4180 driveshaft tube is the starting material for a build; the yokes, u-joints, and balance work come after you've verified this tube diameter is correct for your application's torque load and critical speed.

Tu4180 Driveshaft Tube — Steel DOM Specifications

The TU4180 driveshaft tube specs: 4.100"" OD x 0.180"" wall. 32-30-72-7300. Steel DOM (drawn over mandrel) — consistent wall thickness all the way through, no seam weld, no weak point. The correct material specification for driveshaft applications. Wall thickness determines torque capacity and critical speed rating. Thicker wall handles more torque but adds rotating weight — rotating weight matters more for RPM limits than static weight does, because it affects the critical speed calculation directly.

Before cutting the TU4180 driveshaft tube to length, confirm the butt diameter of your weld yoke matches the tube OD. The yoke butt slides into or over the tube end — a loose fit here produces a concentric weld joint only if you're lucky. Measure both, cut clean, tack before full weld.

Key Features

• Steel DOM — drawn over mandrel, consistent wall, no seam
• Tube OD: 4.100"" — match to weld yoke butt diameter
• Wall: 0.180"" — determines torque capacity and critical speed
• Sold per foot — order exact length, cut to your specification
• Note: 32-30-72-7300

Specifications

• SKU: TU4180
• Brand: SPICER
• Material: Steel DOM
• Tube OD: 4.100""
• Wall Thickness: 0.180""
• Sold per foot
• Notes: 32-30-72-7300