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Image from page 225 of “Ground water in San Joaquin Valley, California” (1916)
Image by Internet Archive Book Images
Identifier: groundwaterinsan00mend
Title: Ground water in San Joaquin Valley, California
Year: 1916 (1910s)
Authors: Mendenhall, Walter C. (Walter Curran), 1871-1957 Stabler, Herman, 1880- Dole, Richard B. (Richard Bryant), 1880-1917
Subjects: Water-supply
Publisher: Washington : Govt. Print. Off.
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Text Appearing Before Image:
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Hardened steel thrust washer
Image by duckophile
It’s a hardened race from a needle thrust bearing, 0.095" thick.
I ground the OD down to size and notched the ID in hopes of allowing some oil through to the surface against the bronze.
The surface is actually as smooth as a bearing race, the texture is an artifact of the grinding process that shows up in the flash.
Torrington TRD-2840, 1.75" ID, 2.5" OD, 0.125 thick, ground to around 2.1" OD to clear the crankcase.