Royal Manufacturing - Industrial Greases and Lubrication

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Contact Info:

ROYAL
Tulsa Plant
516 S. 25th West Ave.
Tulsa, OK 74127 USA
918.584.2671 918.592.6472
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Schertz Plant
(San Antonio Metro)
9998 Doerr Lane
Schertz, TX 78154 USA
210.651.7322 210.651.7405
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Glossary

A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z

- H -

Hydraulic Oil An oil specially suited for use as a power transmission medium in hydraulically operated equipment.

Hydrodynamic Lubrication A system of lubrication in which the shape and relative motion of the sliding surfaces causes the formation of a fluid film having sufficient pressure to separate the surfaces.

Hydrotreating A process which converts and removes undesirable components with the use of a catalyst.

Hypoid Gear Lubricant A gear lubricant having extreme pressure characteristics for use with hypoid type of gear as in the differential of an automobile.

HVI High Viscosity Index, typically from 80 to 110 VI units.

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