Motor Torque, Speed and Inertia: A Preliminary Sizing Path
Learn how steady torque, speed, acceleration, duty, and reflected inertia shape a preliminary motor and gearbox sizing decision.
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Understand the decision behind the calculation.
Practical mechanical design and manufacturing explanations with related decision engines, source boundaries, and downloadable letterhead PDFs.
Belt, Chain and Conveyor Drives: Choose the Motion Transfer
Compare belt, synchronous belt, roller chain, and conveyor traction concepts before selecting a power-transmission path.
Read resourceLinear Motion Choices: Screw, Rack, Cylinder or Actuator
Choose a preliminary linear-motion concept by force, travel, speed, self-locking, critical speed, and fluid-power constraints.
Read resourceShaft Layout Screening: Stress, Deflection, Speed and Supports
Screen shaft torque, bending, deflection, critical speed, and support consequences before a mechanical layout is fixed.
Read resourceMechanical Joints: Preload, Load Path, Keys and Couplings
Understand preload, joint stiffness, shaft connections, bolt groups, keys, and coupling misalignment as separate mechanical decisions.
Read resourceFits and Retained Joints: Threads, Pins, Washers and Interference
Learn why engagement, bearing area, shear planes, interference, and temperature require distinct retained-joint checks.
Read resourceRolling Bearings: Select a Type, Load and Life Screen
Use a preliminary bearing selection path that separates type, equivalent load, life, static rating, and operating conditions.
Read resourceGear Concepts: Geometry, Force, Thrust and Ratio
Understand preliminary gear ratio, geometry, tooth force, helical thrust, worm efficiency, and planetary kinematics before rating.
Read resourceSprings and Vibration: Force, Travel, Stress and Resonance
Compare compression, extension, torsion, Belleville, and vibration concepts through force, travel, installation, and resonance.
Read resourceSimple Structural Screens: Reactions, Bending, Deflection and Buckling
Know which idealized beam and column questions are useful early screens and when real structure behavior defeats the model.
Read resourceMaterial and Stress Screens: What a Nominal Calculation Leaves Out
Learn the boundary between transparent nominal stress calculations and fatigue, notches, material condition, and detailed analysis.
Read resourceMaterial, Contact and Temperature Tradeoffs
Compare stiffness, weight, property provenance, contact pressure, and thermal fit change without selecting a material by name alone.
Read resourceTolerance Stacks and Functional Datums
Understand worst-case and RSS stacks, functional clearance, datum reasoning, fastener access, and surface-finish implications.
Read resourceManufacturing Process Selection Before an RFQ
Select a preliminary process path using geometry, volume, revision risk, capability, and tooling before asking suppliers for price.
Read resourceDFM Cost Drivers: Tolerance, Process, Bending and Volume
Expose the cost mechanisms behind tolerance, setup, cycle time, tooling, process choice, and sheet-metal bending.
Read resourceCutting Data Basics: Speed, Feed and Operation Context
Understand why speed and feed begin with toolmaker data and differ for turning, milling, drilling, and tapping.
Read resourceMachining Feasibility: Chip Load, Power and Cycle Time
Connect engagement, chip load, material removal, spindle power, synchronized tapping, and cycle-time tradeoffs without generating machine commands.
Read resourceSeals and Cylinders: Preliminary Fluid-Power Boundaries
Understand cylinder force, speed, area, seal geometry, and why catalog confirmation and qualified review remain necessary.
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