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99222142 - Tweco RG-140 Replacement Rotary Ground Shaft

Packaging: pack of 1
$1,818.18/EA $1,089.34/pack of 1 only $1,089.34/EASave 40%

Usually ships within 3-5 business days

OVERVIEW

Genuine Tweco Replacement Shaft for RG-140

Keep your welding operations running smoothly with the Tweco 9922-2142 Roto-Ground Shaft. This is the authentic replacement shaft for the widely used Tweco RG-140 Roto-Ground clamp. Rotary ground clamps are essential tools for welders working on rotating fixtures, such as pipe positioners or tank turning rolls. They allow the workpiece to spin freely while maintaining a constant, high-amperage ground connection, preventing the welding cables from wrapping around the part and snapping.

The shaft is the heart of the Roto-Ground system. It transfers the welding current from the stationary cable connection to the rotating head attached to the workpiece. Because it is a moving electrical contact, it is subject to mechanical friction and electrical erosion over thousands of cycles. If your RG-140 is showing signs of overheating, intermittent grounding, or rough rotation, a worn shaft is often the culprit. This replacement part is machined from durable, highly conductive material to withstand the heat and stress of industrial welding environments.

Investing in a replacement shaft is a cost-effective way to extend the service life of your grounding equipment. Instead of discarding a functional Roto-Ground unit, simply swapping out the worn shaft can bring it back to optimal performance. This packaged unit comes ready for installation, ensuring you can minimize downtime and get back to fabrication quickly. Trust in Tweco's legacy of quality to provide the reliable grounding components necessary for defect-free welds.

Features and Compatibility

  • Direct Fit: Engineered exclusively for the RG-140 model.
  • High Conductivity: Copper alloy construction minimizes voltage drop.
  • Durability: Resists wear from constant rotation under load.
  • Maintenance Friendly: Simple replacement procedure for field repairs.
Additional Information
Brand:Tweco
Product Type:Replacement Shaft
Compatibility:RG-140 Roto-Ground
Material:Copper Alloy
Application:Rotary Grounding
Part Number:9922-2142
Packaging Description:pack of 1

INCLUDED

  • (1) Replacement Roto-Ground Shaft
  • (1) Packaging

APPLICATIONS

  • Pipe welding fabrication shops
  • Pressure vessel and tank manufacturing
  • Automated welding fixtures and positioners
  • Rotary table grounding
  • Heavy industrial MRO

FAQ

This shaft (Part No. 9922-2142) is designed specifically for the Tweco RG-140 Roto-Ground clamp.

Over time, the friction from rotation and the transfer of high amperage electricity can cause pitting, scoring, or general wear on the shaft, leading to poor grounding and overheating.

Yes, this is a genuine OEM Tweco part, ensuring correct fitment and material specifications for the RG-140.

The shaft is manufactured from a high-conductivity copper alloy designed to handle welding current while resisting mechanical wear.

No, the RG-240 and RG-440 are larger units with different amperage ratings and dimensions. This shaft is specific to the RG-140.

No, this package typically contains the shaft only. Brushes and other internal components are sold separately.

A Roto-Ground prevents ground cables from twisting and tangling when welding on rotating parts like pipes or tanks, ensuring a continuous electrical ground.

Signs include visible deep grooves or pitting on the shaft surface, excessive heat generation at the ground clamp during use, or intermittent arc stability.