worn grease the gears mechanism |
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| navigate by keyword : appliance cog device drive equipment gear gearing grease handy industry inside lubricate machine machinery manufacturing mechanical mechanism metal oil old pinion service shaft spindle steel swirl technology tool torque wheel worn |
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| This is a view of the transmission mechanism from the crank to the chuck of an old hand drill. Worn grease can be seen on the cog wheels of this unit |
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