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Precision Spindle Grinding

9:15
26:36
68.7K views

At 9:15 in

Rottler Manufacturing: The Unsung Hero of Combustion Engines (100 Years of Made In America)

What happens here

The group then visits a manual grinder, which is one of Rottler's last manual machines still in use. This machine is used to grind highly precise spindles for large format machines, like the F80 series for big diesel engines. The attention to detail includes tracking each dimension of every spindle throughout its assembly to ensure compatibility with various tooling, including custom-made right-angle drives.

Goal: Showcase manual precision grinding for machine spindles

Tools and materials

  • Manual Grinder — Grinding precision spindles for large format machines

What they say

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in to an engine block to allow you to line bore them so again very unique product it's taken years to develop our ways that we used to do it was to have a Long Bar that went through that whole block and you'd compensating for bar say down the block and it takes a long time and a good operator to set it up right with this it repeats within one ten thousandths of an inch every time it goes right back to that same Center Line and so you know blocks like this that have been under you know High operation you know you may have to do in a line board because because the one of the boards got hot you might also have to do in a line board because it even torsional fatigue on the Block because it's been loaded up and just has some misalignment I don't know that there's anybody else in the world there's nobody's doing that okay I got an important thing here this is Andy's daughter they have another generation kicking around here I thought I would introduce Karen who's been with us what had or a year and a half about a year about a year yeah all right corn it's been wonderful having you down here thank you do you think that she likes working for you more than you like working for your dad no boy that's a story I've told a couple times anyway and um when I first came down to work here I

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