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Tube Mill Gearboxes

Twin-output and station-matched worm drives for ERW / stainless tube mills — double bearing bores, mill-station input shafts, and ratios sized for continuous forming lines.

Anand Gears tube mill worm gearbox for roll-stand drives

Steel & Tube Forming

Twin-Output Worm Drives for Tube Mill Roll Stands

Tube mills need drives that hold centreline geometry station after station. Anand Gears builds application-specific worm gearboxes for forming and sizing stands — including double-drive / twin-output housings with dual bearing bores, and single-station worm units matched to the mill layout. Centre distances follow our cast iron worm range (50–305CD); common tube-mill ratios include the 30:1 family used on continuous stainless and mild-steel lines.

Double-drive / twin-output housings for paired roll stands
Station-matched input and output shafts (lengths & keyways per mill)
Cast iron NU and custom fabricated housings
Hollow or solid inputs to suit motor / coupling layout
Rebuild & drop-in replacement of worn mill gearboxes
All dimensions in millimetres — shop drawings in mm

What We Build

Tube Mill Drive Configurations

Twin / Double Drive Housings

One housing with dual bearing bores drives paired rolls in phase. Used where a single motor feeds two stand positions through a shared worm reduction.

Station Worm Units

Individual worm boxes per stand (ratio typically mid-range, e.g. 30:1) with shaft lengths keyed to the mill station drawing set.

Hollow Input NU

Hollow input on NU-pattern bodies where the motor plugs through or a long intermediate shaft is required — common on strip and tube lines.

Rebuild & Re-shaft

We re-bore, re-shaft, and remanufacture worn tube-mill gearboxes to match the original mounting feet and shaft ends so the line does not need new base plates.

Related products: Worm Gearboxes · Helical Gearboxes · Custom & Special Gearboxes · Replacement & Repair

Engineering

How a Tube Mill Drive Is Specified

  1. Centre distance (CD) — taken from the existing box or mill GA (mm).
  2. Ratio — motor RPM to roll RPM (e.g. 30:1 on many forming stands).
  3. Output arrangement — single solid, double output, or twin-drive housing.
  4. Shaft ends — diameters, overall lengths, keyways (mm), and which side is drive / idle.
  5. Mounting — foot pattern, flange, vertical-up / horizontal.
  6. Duty — continuous S1 forming vs intermittent sizing passes.

Application example (anonymized): a stainless tube-mill line in Maharashtra running twin double-drive worm boxes at 30:1 plus a set of station worm gears — built and serviced as a matched drive family rather than catalogue off-the-shelf units.

FAQ

Tube Mill Gearboxes — Common Questions

What is a twin-output or double-drive tube mill gearbox?

It is a worm reduction unit configured so two outputs (or dual bearing bores in one housing) drive paired roll positions from one reduction stage. Anand Gears builds these as application-specific housings, not only as catalogue single-shaft boxes.

Can you match shafts to our existing mill stations?

Yes. Provide station drawings or measured shaft overall lengths, step diameters, and keyways in millimetres. We machine input and output shafts to those ends so the gearbox bolts to the existing mill without new foundation work.

Do you only supply new units, or also rebuilds?

Both. We manufacture new tube-mill worm drives and rebuild worn units — re-housing, re-shafting, and re-gearing as required — as drop-in replacements matched to mounting and shafts.

Need a Tube Mill Drive?

Share mill station (A1/A2 style naming if used), ratio, motor frame, shaft ends, and a photo of the existing unit. We build new drives and drop-in replacements.

Request a Quote Call +91 9820383719