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What material is the roller of a typewriter made of?

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It's called a “platen” and is made of a steel tube covered with a rubber sleeve. The rubber sleeve is made of a special form of hard rubber that is glued to the tube. Various materials have been used for this sleeve, but the last material to be used was Buna rubber: Buna vs Viton: What's the Difference? | Precision Plastic Ball. read more

It’s called a “platen” and is made of a steel tube covered with a rubber sleeve. The rubber sleeve is made of a special form of hard rubber that is glued to the tube. read more

Thus the use of printing terms came to be incorporated into “typewriter” designs. The first use of the word “platen” in relation to a typewriter came from an American pistol manufacturer, in 1843. read more

Raw Materials Carrying cases can be made of wood, steel, or plastic. Steel is the material used for most of the parts in standard models. Typewriters use hundreds to thousands of moving parts, and cold-rolled steel is one of the most reliable materials. The platen is a steel tube covered with a rubber sleeve. read more

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