pillow block
Noun: A pillow block is a mounted housing or support that contains a bearing. Its primary function is to provide secure mechanical support and allow for the rotation of a shaft, rod, or axle. The bearing inside the pillow block reduces friction and facilitates smooth movement.
A pillow block is a fundamental component in mechanical and industrial systems. It is used to provide a stable, fixed point of support for a rotating shaft. * The conveyor belt's drive shaft is supported by two pillow blocks at either end. * For the new motor installation, you will need to align the pillow block precisely with the shaft.
- Pillow Block Bearing: This is the complete assembly term, though "pillow block" is commonly used to refer to the entire unit (housing + bearing).
- The failed pillow block bearing caused the entire assembly to seize.
- Plummer Block: (British English) A term often used interchangeably with pillow block, though sometimes referring to a specific, heavier-duty type of block.
- Bearing Housing: A more general term for a support structure that contains a bearing.
- Shaft Support: A descriptive term for the function of a pillow block.
- Bearing housing
- Shaft bearing housing
- Mounted bearing unit
The term "pillow block" is highly specific to mechanical engineering. It does not have common idiomatic or figurative meanings outside this technical context. It is not related to bedding or pillows in any functional sense; the name is derived from the block's shape or its supportive function.
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a cast-iron or steel block for supporting a journal or bearing
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