HF Series Spindle Inserts: Complete Technical Guide

HF series = spindle insert WITHOUT bolster. Designed for spinning and twisting spindles operating with or without ring and traveller, at light to medium loads and high speeds — up to and above 18,000 rpm.

Vindex Industries manufactures HF series spindle inserts in Surendranagar, Gujarat, India, exporting to 87 countries across Asia, Africa, Europe and the Americas.

HF Series Range

Type	Ref. No.	Dimensions (A / R / P)	Application
HF 33	0952 502	158.0 / 21.7 / 8.8	High speed, light load
HF 33*	0952 503	158.0 / 21.7 / 8.8	High speed, light load
HF 35	1254 243	158.0 / 21.7 / 8.8	Suppressed balloon
HF 44	0952 757	173.5 / 23.8 / 10.0	Ring & traveller

High-Speed Inserts: HF 1 & HF 21

For the highest spindle speeds, Vindex offers the HF 1 and HF 21 high-speed inserts:

Type	Speed	Oil Grade	Change Interval	Immersion (max/min)
HF 1	Up to 18,000 rpm	VG 10	20,000 h	80 / 50 mm
HF 21	Above 18,000 rpm	VG 10	12,000 h	80 / 50 mm

How to Select the Right HF Type

1. Check your frame speed: above 18,000 rpm needs HF inserts built for high speed.
2. Check the application: suppressed balloon frames need HF 35; standard ring frames use HF 33 or HF 44.
3. Match the reference number: every HF type has an original reference number — matching it guarantees a drop-in fit.

Compare the listed references in the textile spindle bolster range, and specify whether your enquiry is for an insert or a complete assembly.

Why Mills Choose Vindex

As a textile spindle manufacturer in India, Vindex Industries produces HF series inserts to original dimensions with EN-31/AISI-52100 grade materials — trusted by spinning mills in 87 countries for consistent quality and reliable worldwide delivery.