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TFO Double-Twist Spindle Guide

Vindex technical notes · 12 Oct 2026

Two-for-one (TFO) twisting puts unique demands on spindle bearing units — the insert must handle the twisting balloon dynamics while running reliably for thousands of hours. Three types in the HF/HZ range are purpose-built for double-twist spindles.

Vindex Industries manufactures TFO spindle bearing units in Surendranagar, Gujarat, India, exporting to 87 countries.

TFO-Suitable Types

TypeSeriesRef. No.Oil GradeInterval
HZ 33With bolster0019 871VG 1010,000 h
HZ 35With bolster0018 299VG 227,000 h
HF 45Insert only1258 940VG 227,000 h

Choosing Between Them

HZ 33 / HZ 35: choose the bolster version when the TFO spindle carries heavier packages or needs extra damping — the bolster adds stability.
HF 45: choose the insert-only version for lighter, compact TFO spindle designs.

Maintenance Notes for TFO

TFO spindles run continuously at high speed — follow the 24-hour first change, 7-day second change, then 30-day top-up schedule strictly. Check oil level on a random sample of spindles at half the interval.

Vindex Industries is a TFO spindle manufacturer in India supplying double-twist bearing units to mills in 87 countries.

Frequently asked questions

What does this TFO spindle guide help identify?

It introduces TFO-suitable spindle types, selection considerations and maintenance notes for double-twist applications.

Which details should be checked when comparing TFO types?

Use the machine and spindle reference, assembly dimensions and operating duty. Keep maintenance and lubrication requirements associated with the selected type.