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Bearing Grease Calculator

Bearing Grease Calculator

Regrease volume and relubrication interval for fan and blower bearings.

Bearing Selection

Operating Parameters

Environmental Conditions

Results

Regrease volume
—g
— oz
Relubrication interval
—hr
Continuous —
12 hr/day —
10 hr/day —
8 hr/day —
Pump strokes
—
std gun ≈ 1.35 g/stroke
Overall correction factor:—
Need application-specific numbers? Run a full fan selection with performance data and accessories in myAirPro, or reach an AirPro application engineer for help with your specific operating conditions.
Results are engineering estimates based on industry-standard bearing lubrication formulas (regrease volume Gₓ = D × B × K, where K = 0.005 for side ports or 0.002 for center-ring ports; NLGI frequency methodology with environmental correction factors). Actual intervals vary with grease type, bearing manufacturer recommendations, and operating conditions. Use condition-based monitoring such as ultrasound or grease analysis to refine intervals in service.