Detail A — Start

All lubrication engineering calculators

Two equal ways in. Use the guided path if you’re not sure, or jump straight to a calculator if you already know the tool. Power users can skip this entirely — the full suite stays below.

All 37 tools started as one lubrication practitioner’s plant-floor spreadsheets, rebuilt as free browser tools so the everyday math of the trade is one click away. Why LubeSuite exists · How the calculators are checked

Door A · Direct

I know the tool

Search by name or jump the full suite — same as today for people who already know where they’re going.

Quick links · defaults until you use tools
→ Chips reorder from your recent use
Door B · Optional guide

Not sure — help me start

What are we working on today? Hover or focus a path to preview which tools light up below.

Dismiss anytime · doesn’t block All Tools
Detail B — Full calculator index

All tools

Jump straight to any calculator. Active job values (bearing, RPM, temperature, viscosity) carry when present.

Bearings & Lubrication Selection

01
Bearing Analysis
Bearing & Housing Lookup
Search SKF catalog + ABMA/ISO designations. Starts the calculation string.
05
Bearing Analysis
Electric Motor Bearing Lube
Baldor/NEMA intervals, volumes & single-point lubricator sizing.
06
Fluid Properties
Lubricant Recommendation
Scored ranking across 445+ products from your inventory.
27
Fluid Properties
Lubricant Specs & Equivalents
Search by name, brand, or LIS code — specs plus performance equivalents with mix caveats.
00
Fluid Properties
Mill Inventory & Stock Check
Check greases & oils stocked on-site. Recommendations prefer what you already have.
02
Bearing Analysis
Re-Grease Interval & Quantity
SKF nomogram interval with contamination, orientation & temp factors.
03
Bearing Analysis
Minimum Required Viscosity (ν₁)
SKF / ISO 281 ν₁ with κ ratio. Feeds lubricant selection.
17
Bearing Analysis
Bearing Installation Clearance
SKF mounting clearance reduction & residual internal clearance (SRB/CARB).
22
Bearing Analysis
Journal & Plain Bearing
Clearance ratio, Sommerfeld number, Ocvirk film estimate, Petroff friction — hydrodynamic starting point.
33
Bearing Analysis
Tilting Pad Thrust Bearing
Waukesha MS size by thrust load, shaft and RPM; sliding speed, lube mode, babbitt limits, alarm/trip helper.
04
Bearing Analysis
Forced Circulation Oil Flow
NSK heat-balance oil flow rate for the selected bearing.
29
Bearing Analysis
Bearing Friction & Heat
Friction moment M = μ·P·d/2 and heat in kW, W and BTU/hr by bearing type (NTN method).
18
Bearing Analysis
Bearing Defect Frequencies
81,000+ bearings — BPFO / BPFI / BSF / FTF vibration defect frequencies.

Viscosity & Oil Properties

10
Gearbox & Drivetrain
Gearbox Viscosity & AGMA Grade Selector
AGMA 9005 pitch-line-velocity tables or power / output-speed / reduction lookup.
08
Fluid Properties
Viscosity Blending & Wrong-Oil Solver
Refutas/ASTM D341 blend-ratio solver to a target ISO VG.
07
Fluid Properties
VI Comparator & ASTM D341
Viscosity–temperature curves for two fluids (ASTM D341).
25
Fluid Properties
Oil Analysis Normalizer & Wear Rate
Correct ppm for top-offs and sample interval — wear rates per 100/1,000 h plus next-sample frequency.
27
Fluid Properties
Lubricant Specs & Equivalents
Search by name, brand, or LIS code — specs plus performance equivalents with mix caveats.
31
Fluid Properties
Lubricant Label Date Code Translator
Mobil, Petro-Canada or CITGO batch / fill code → fill date, age today and shelf-life check; possible readings for other brands.

Contamination & Fluid Systems

12
System & Maintenance
ISO 4406 Cleanliness & Filtration Modeler
ISO/moisture targets from machine criticality, then Schroeder filtration ODE (ISO 16889).
28
System & Maintenance
Filter Element Cross-Reference
Any brand's filter element part number → equivalent elements from other manufacturers, with match type and specs.
09
Fluid Properties
Reynolds Number Oil Flush Analyzer
Multi-run flush circuit analysis with Re target by VG class.
16
System & Maintenance
Sample Tube Flush / Purge Volume
Sample tubing / purge flush — πr²L line volume ×10 (¼″–⁵⁄₁₆″ ID typical).
13
System & Maintenance
Reservoir Breather Sizing
Thermal-expansion & rapid-draw CFM with port adequacy checks.
11
System & Maintenance
Bernoulli Energy Balance Calculator
P + ½ρv² + ρgh energy balance, solves any unknown.

Grease & Couplings

14
System & Maintenance
Coupling Grease Fill & Void
Annular void volume with key-slot deduction & over-pack warning.

Thermal & Mechanical Life

20
System & Maintenance
Thermal Expansion & Fit
Shaft/bore/seal growth with temperature — fit change and multi-material CTE compare.
34
System & Maintenance
Oil Cooler & Heat Exchanger Sizing
Heat load from flow and ΔT, air-oil or water-oil ETD, cooler matches across brands, brazed plate swap check.
21
Bearing Analysis
Drum & Roll Oil Temperature Analyzer
FPM–RPM map and max oil temp by κ zone for drums, rolls, dryers — CSV setpoints export.
26
System & Maintenance
Component Life & ISO 281 L10
ISO 281 L10, linear guides, chains, belts, cylinders, motor insulation, rupture discs.
30
Gearbox & Drivetrain
Sprocket & Chain Code Decoder
ANSI 40B16 1″ or ISO 08B-16T-25 → pitch (in/mm), standard, teeth, bore, pitch & outside diameter, chain speed.
32
Gearbox & Drivetrain
Roller Chain Lubrication Selector
Chain no., speed & ambient temp → published oil grade ranges, Type A/B/C method, relube schedule, dry-film options.

Cost & Reliability

15
System & Maintenance
Hydraulic & Lube Oil Leak Cost
Drops-per-minute to annualized cost at your lubricant price.
19
System & Maintenance
Lubrication Root Cause Analysis (RCFA)
Guided 9-method root-cause pathway for lubrication & reliability failures.

Utility

23
System & Maintenance
Plant-Floor Unit & Conversion
Pulley/drive RPM, density/API gravity, length, area, volume, pressure, temperature — plant-floor conversions.

Plant Tools

24
System & Maintenance
LubeMapper — Plant Lubrication Mapping
Plant floor map — areas, levels, lube units, filters; uses LubeLabel product catalog.
P1
System & Maintenance
LubeLabel — Printable Plant Lube Tags
Print-ready lubricant ID labels — shapes, colors, plant overrides, QR back label.
P2
System & Maintenance
SAP Plan Builder — Maintenance Plan
Standard procedure + SAP load-sheet CSV/PDF (columns A:V) — free plant-floor helper; not a CMMS.