Durability & Repair
Hinges wear out by count, not by age
A hinge that opens twenty times a day and one that opens twice do not age at the same rate. Cycle count, load and lubrication…
Durability & Repair
What fails first, what can be fixed, and how long things should last.
21 articles · updated August 11, 2026 · page 1 of 2
Durability & Repair
Bearings are the clock running inside anything that spins
Almost every rotating product fails at a bearing eventually. What varies is whether the bearing was protected, whether it was sized for the load, and whether anyone can change it.
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Durability & Repair
The cheapest part in the product is usually the one that ends it
Seals and gaskets cost very little and protect everything expensive behind them. They are also consumables, and most consumer…
Durability & Repair
Cables fail where they bend, and the strain relief is the whole design
Conductors break through repeated flexing at a single point rather than wearing out along their length. Everything protecting a…
Durability & Repair
Serviceability predicts lifespan better than how solid something feels
A heavy, tight, well-finished product can still be scrapped over a five-pound part. What predicts a long life is whether the part…
Durability & Repair
Fasteners tell you what the designer expected you to open
How a product is held together is a statement of intent that anyone can read. Screws, clips, adhesive and heat stakes each carry a…
Durability & Repair
Plastic ages whether or not you use it
Polymers change chemically over years through heat, light and the slow loss of additives. The result is a crack in a part that was…
Durability & Repair
Corrosion happens where two metals meet
Rust on a single material is the familiar problem. The quicker and more surprising failures happen at joints between different…
Durability & Repair
Heat is the quiet cause of most electronic failure
Electronics rarely fail dramatically. They fail because components spent years slightly too warm, and the components that mind most…
Durability & Repair
Failures cluster at the beginning and the end, and the middle is quiet
Reliability engineers describe failure rates as a curve with two humps and a long flat stretch. Knowing which part of that curve…
Durability & Repair
Every mechanism has a part chosen to wear out first
Somewhere in a design there is a surface intended to be sacrificed. Knowing which one it is turns an alarming symptom into a…
Durability & Repair
A product that needs a server has an ending somebody else controls
When core functions depend on a manufacturer's infrastructure, the hardware's life is bounded by a commercial decision. That…