HZ Series Spindle Bolster Oil Change Timetable

Proper lubrication is the difference between a spindle bolster that lasts years and one that fails in months. This complete oil change timetable covers every HZ series bolster — from the compact HZ 33 to the heavy-duty HZ 77 — with exact grades, intervals and check schedules used by mills worldwide.

Vindex Industries manufactures HZ series spindle bolsters in Surendranagar, Gujarat, India, and exports to 87 countries across Asia, Africa, Europe and the Americas.

Oil Change Schedule

First oil change: after 24 hours of running.
Second oil change: after 7 days.
After that: top up the oil level every 30 days.

Vindex Oil Change Timetable

Step	Action	When
1	First oil change (run-in)	After 24 hours of running
2	Second oil change	After 7 days
3	Oil-level check & top-up	Every 30 days

Note: the catalogue table below lists the manufacturer's maximum full oil-change intervals (5,000–10,000 operating hours depending on type and load). The 30-day oil-level check and top-up above is Vindex’s recommended level maintenance between full changes — it prevents dry running and never conflicts with the catalogue schedule.

At every oil change, coat the roller bearing thoroughly with fresh oil before putting the bolster back into service.

HZ Series Oil-Change Intervals — Catalogue Reference

Type	Oil Grade	1st Change	Regular Interval	~Months (24x7)	Level Check
HZ 33	VG 10	24 h	10,000 h	~14	5,000 h
HZ 35	VG 22	24 h	7,000 h	~10	3,500 h
HZ 44	VG 10	24 h	10,000 h	~14	5,000 h
HZ 55	VG 22	24 h	7,000 / 5,000 h*	~10 / ~7	Half interval
HZ 66	VG 22/46	24 h	7,000 / 4,000 h*	~10 / ~5.5	Half interval
HZ 68	VG 22/46	24 h	7,000 / 4,000 h*	~10 / ~5.5	Half interval
HZ 77	VG 22/46	24 h	7,000 / 4,000 h*	~10 / ~5.5	Half interval

* Shorter interval at higher axial load (5-8 daN); longer at lighter load (3.5-5 daN).

Oil Specification

Use high-grade spindle oil per DIN 51517-CLP. Never run below the level mark.

Vindex Industries manufactures HZ series spindle bolsters to original dimensions in Surendranagar, Gujarat — exported to 87 countries.