Idler wheels by dimension
In this category you will find idler wheels by dimension intended for tape recorders, cassette players and selected turntable mechanisms. This selection method is particularly suitable when the service part number is not available, but the original idler wheel can be accurately measured.
Idler wheels are sorted by dimensions so that the correct part can be selected based on the outer diameter, running surface width and inner diameter.
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How to select an idler wheel by dimension
Selecting an idler wheel by dimension is a common method when the original part does not have a known service part number or cannot be clearly identified by the device model. For correct selection, we recommend using a caliper and measuring with an accuracy of at least tenths of a millimeter.
- Outer diameter – total diameter of the idler wheel including the rubber tire
- Running surface width – width of the rubber part that contacts the mating surface
- Inner diameter – inner diameter of the idler wheel without the tire
Even a small dimensional deviation can affect torque transmission, contact pressure or operating stability. Using an incorrect idler wheel may lead to slippage, irregular operation or increased wear of other components.
Recommendation
If you are unsure about selecting an idler wheel by dimension, we recommend first reading the guide How to choose the correct idler wheel. If you know the exact service part number, the most accurate solution is selecting from the category idler wheels by service part number.
