Engineer Data Hub

ENGINEER DATA HUB

Free Engineering Calculators
Milling Lathe Drill Bearings
"Your practical workshop calculation partner."
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Engineer Data Hub
Overview

Engineering Calculations Made Easier

Free, practical workshop calculators for common machining and mechanical engineering tasks.
1Gear cutting
2Milling operations
3Lathe operations
4Drilling & hole spacing
5Indexing
6Bearing identification
Engineer Data Hub
Gear Calculators

Precision Gear Calculations

⚙️
Spur Gear Calculator
Module, pitch, OD, root, ratio
 🔩
Helical Gear Calculator
Helix angle, module, dimensions
 🌀
Worm Gear Calculator
Ratio, lead angle, efficiency
 🔗
Gear Train Calculator
Change gears for helical cutting
 📐
Differential Indexing
Difficult divisions & gear trains
Engineer Data Hub
Milling

Make Milling Calculations Easier

🎯
Simple Indexing
Crank turns & hole circles
 📏
Dividing Head
40:1 worm ratio calculations
 ⚙️
Differential Indexing
Prime divisions like 127
 🔗
Helical Gear Train
Lead screw to dividing head
 🌀
Cutting Speed — Milling
RPM from material & cutter dia
Engineer Data Hub
Lathe

Smarter Lathe Calculations

📐
Lathe Taper Calculator
Included angle, α, tailstock offset
 🌀
Cutting Speed — Lathe
Spindle RPM from material
 🔩
Thread Engineering
Types, formulas, workshop setup
💡 Example: taper 50→40 mm over 100 mm → 5.724° included
Engineer Data Hub
Drilling

Accurate Hole Spacing

⭕
Hole Spacing Calculator
Bolt circles, chord length, X-Y coordinates
Quick reference
θ = 360° / N
C = D × sin(180° / N)
6 holes on 100 mm PCD → C = 50 mm
Useful for bolt circles, flanges and circular component layouts.
Engineer Data Hub
Bearings

Find the Right Bearing

⭕
Bearing Data & Identification
Bearing number decoder
→Bearing numbers
→Inside diameter (bore)
→Outside diameter & width
→Dimensional data reference
💡 6205 → 25 mm bore  |  6308 → 40 mm
Useful for workshop maintenance, replacement and reference.
Engineer Data Hub
Knowledge

Explore Engineering Knowledge

⚙️ Gear Engineering 🔧 Milling Machine 🛠️ Lathe Machine 🔩 Drill Machine 🖥️ CNC Machine ⭕ Bearing Engineering
Practical engineering guides and workshop knowledge across all major machining areas.
Engineer Data Hub
How It Works

Calculate in 4 Simple Steps

1Select your engineering calculator
2Enter your job specifications
3Calculate the required values
4Review results & verify machine setup
A PRACTICAL STARTING POINT
Always verify results against the material, tooling and your machine's specifications.
Engineer Data Hub
For Professionals

Built for Real Workshops

✓ Mechanical engineers
✓ Workshop supervisors
✓ Machinists
✓ Manufacturing engineers
✓ Engineering students
✓ CNC operators
Practical engineering knowledge for everyday manufacturing challenges.
Engineer Data Hub
Anywhere

Your Engineering Tools, With You

Access Engineer Data Hub through your browser — no installation required.
📱Works on mobile phones and tablets
💻Works on desktop browsers
⚡Install website for faster access
📲App available for Android & iOS
Engineering calculators and practical workshop references, wherever you work.
Engineer Data Hub
Engineer Data Hub

Ready to Make Your Calculations Easier?

Explore engineering calculators, workshop tools and practical engineering guides.
Gears Milling Lathe Drill Bearings
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Spur Gear Helical Gear Lathe Taper Hole Spacing Bearings
Practical engineering calculators for milling, lathe, drill & bearings.
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Engineer Data Hub