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This article is a continuation of the common mechanical terminology used in engineering and manufacturing. It covers a wide range of terms related to machining, materials, components, and processes. Understanding these terms is essential for professionals working in the field of machinery and bearings.
Below is a list of key mechanical vocabulary terms:
- **Bow sawing machine / Hacksawing machine**: A tool used for cutting metal or wood with a toothed blade.
- **Four paintings imbalance / Imbalance**: Refers to uneven weight distribution in rotating parts.
- **Non-ferrous metal**: Metals that do not contain iron, such as aluminum, copper, and brass.
- **No through hole / Closed hole / Blind hole**: A hole that does not go all the way through the material.
- **Lapped dovetail joint**: A strong joint made by interlocking two pieces at an angle.
- **Asymmetric / Asymmetry**: Lack of symmetry in shape or structure.
- **Stainless steel**: A corrosion-resistant alloy containing chromium.
- **Unstable equilibrium**: A state where an object is balanced but easily disturbed.
- **Middle centre / Middle line**: The central axis of a component.
- **Intermediate punch / Middle drill / Intermediate drill bit**: Tools used for creating holes in the middle of a workpiece.
- **Central processing unit (CPU)**: The primary component of a computer that performs calculations.
- **Neutral / Neutral equilibrium**: A state of balance without external forces acting on it.
- **Neutral axis**: The line in a beam that experiences no tension or compression during bending.
- **Medium density fibre board (MDF)**: A type of engineered wood used in furniture and construction.
- **Medium cut**: A moderate level of detail or finish in machining.
- **Medium carbon steel**: A type of steel with moderate strength and hardness.
- **Complementary metal oxide semiconductors (CMOS)**: A technology used in digital circuits.
- **Meson / Gasket washer**: A thin ring used to seal connections between two surfaces.
- **Intermittent iron ring mandrel**: A device used to shape metal rings.
- **Dielectric constant**: A measure of a material's ability to store electrical energy in an electric field.
- **Metastable / Metastable**: A state that is temporarily stable but can change under certain conditions.
- **Internal force / Internal energy**: Forces and energy within a system.
- **Intrinsic properties**: Characteristics inherent to a material.
- **Internal round chisel / Scribing gouge**: Tools used for shaping and marking metal.
- **Interlocking fitting**: A joint that locks together without additional fasteners.
- **Internal combustion engine**: An engine that burns fuel inside its cylinders.
- **Internal thread making method / Tapping**: The process of creating threads inside a hole.
- **Inner thread**: Threads on the inside of a cylindrical object.
- **Concave edge**: A curved edge that curves inward.
- **Hexagonal metal branch / Hexagonal bar**: A rod with six sides.
- **Hex key / Allen key**: A small wrench used to tighten hexagonal screws.
- **Hexagonal head screw**: A screw with a six-sided head.
- **Metric / Decimal metric**: A system of measurement based on units of ten.
- **Public service tolerance**: Allowable deviation in dimensions for general use.
- **Redundant member**: A component that is not necessary for structural integrity.
- **Component force**: A force that acts in a specific direction.
- **Molecule / Molecular force**: The smallest unit of a substance and the forces between molecules.
- **Slitting / Cutting / Parting off**: Processes used to divide materials into smaller sections.
- **Decibel / dB**: A unit used to measure sound intensity.
- **Analyze / Analysis**: The process of breaking down information to understand it better.
- **Analytical and critical studies**: Research that evaluates and interprets data.
- **Parser / Analyzer**: A tool or program that breaks down complex data.
- **Shunt / Shunting**: A circuit that allows current to bypass a component.
- **Interface / Interface**: A point where two systems meet or interact.
- **Centimeter / Micrometer**: Units of length, with micrometers being much smaller.
- **Rule divider / Ruler blade**: A tool used for measuring and dividing lengths.
- **Cutting tool holder**: A device that holds a cutting tool in place.
- **Differentiation / Composition**: The process of separating elements or combining them.
- **Voltage divider**: A circuit that reduces voltage levels.
- **Barrier switch / Isolating switch**: A safety device used to disconnect power.
- **Cutting thing / Cutting tool**: A tool used to remove material from a workpiece.
- **Cutting fluid**: A liquid used to cool and lubricate during cutting operations.
- **Depth of depth**: The measure of how deep a cut or hole goes.
- **Chip / Chip removal**: Small pieces of material removed during machining.
- **Tangential sawing**: A type of cutting using a circular saw.
- **Cutting roll pattern / Rolling knurling**: A process of creating patterns on metal surfaces.
- **Blocking / Cutting / Parting off**: Techniques for separating materials.
- **Blocking something / Parting tool**: A tool used to cut or separate materials.
- **Hook / Hook knife**: A tool with a curved blade used for cutting.
- **Hook knife / Film file / Plastic cutter**: Tools used for trimming and cutting different materials.
- **Glue tensol**: A type of adhesive used in woodworking.
- **Reverse biased**: A condition in which a diode is connected to block current flow.
- **Inverting amplifier / Inverter**: An electronic circuit that reverses the polarity of a signal.
- **Reflection / Reflection**: The bouncing back of light or sound waves.
- **Back EMF / Back e.m.f.**: A voltage generated in a motor when it rotates.
- **Reverse / Reverse action**: A movement or process in the opposite direction.
- **Take water / Thinner / Thinners**: Substances used to reduce the viscosity of paint or coatings.
- **Ladder tooth / Rack gear / Gear rack**: A type of gear with teeth arranged in a straight line.
- **Natural timber / Natural dry season air seasoning**: Wood that has been dried naturally.
- **Porosity / Porosity**: The presence of small holes or voids in a material.
- **Scale dimension / Scale line**: A reference line used in measurements.
- **Ruler blade / Ruler**: A straightedge used for measuring and drawing.
- **Gravitational force / Gravity**: The force that pulls objects toward the center of the Earth.
- **Heart-shaped cam / Heart-shaped cam**: A cam with a heart-like shape used in mechanical systems.
- **Heartwood / Heartwood**: The inner part of a tree trunk, often darker and more durable.
- **Mandrel / Mandrel**: A cylindrical tool used for shaping or supporting materials during machining.
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- Several commonly used bearing types (4).
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Source: China Bearing Network | Time: 2013-02-01