Can I use pump rated output as consumption?

Only when it represents the actual average delivered feed. Intermittent operation and multiple outlets can make the nameplate flow misleading.

Does a lower feed automatically improve efficiency?

No, the bearing or machine manufacturer must establish an adequate supply. Reducing lubricant below that requirement can damage the equipment.

No, this model uses volume. Convert mass using the specific lubricant density or use a calculation stated on a mass basis.

Include them only when lubricant continues to be delivered. The entered hours must match the period over which the feed operates.

Maintenance & Reliability calculator

Estimate delivered lubricant volume and its purchase cost over a run. Enter the actual or approved feed rate, delivery runtime and price per liter.

Calculate lubricant volume and purchase cost from a measured or approved feed rate.

Lubricant Feed Rate: Measured or manufacturer-approved delivered lubricant volume per operating hour.
Lubrication Runtime: Hours during which this feed is actually delivered.
Lubricant Unit Cost: Purchase price for the delivered lubricant volume.

Best suited to lubricant supply Planning, metered feed cost review.
The model does not determine an adequate lubrication feed rate. Refill labor, leaks outside measured delivery and disposal costs are excluded.

U.S. manufacturing runs at 75.7% of capacity (Federal Reserve, Aug 2026). New factory orders are up 8.5% year over year (Census).

Can I use pump rated output as consumption? Only when it represents the actual average delivered feed. Intermittent operation and multiple outlets can make the nameplate flow misleading.
Does a lower feed automatically improve efficiency? No, the bearing or machine manufacturer must establish an adequate supply. Reducing lubricant below that requirement can damage the equipment.
Can grease mass be entered as liters? No, this model uses volume. Convert mass using the specific lubricant density or use a calculation stated on a mass basis.
Are idle hours included in runtime? Include them only when lubricant continues to be delivered. The entered hours must match the period over which the feed operates.

Last reviewed 2026-10-06.