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<blockquote data-quote="apprentice87" data-source="post: 428844" data-attributes="member: 13534"><p>When i saw a wheel explode it certainly was nasty...</p><p></p><p>Was about 8 or 10" diameter on a Jones and Shipman surface grinder. What i "think" happened is that the chap working the thing had not tightened up one of the table travel reverse trip thingys. [you know what i mean] Anyway, the thing was grinding away nicely, when suddenly the table fed the wheel dressing attachment, [that was bolted to the end of the table] at full traverse speed into the wheel..</p><p></p><p>There was an almighty bang and the wheel exploded.. Happily all bits of wheel were contained by the guarding, but it did stop the spindle dead. [Wonder it did not damage the thing..] [hit the diamond out of the dresser was all]</p><p></p><p>From memory [it was nearly 40 years ago] the wheel speed was about 3000rpm?? Made a big bang anyway!!</p><p></p><p>john..</p></blockquote><p></p>
[QUOTE="apprentice87, post: 428844, member: 13534"] When i saw a wheel explode it certainly was nasty... Was about 8 or 10" diameter on a Jones and Shipman surface grinder. What i "think" happened is that the chap working the thing had not tightened up one of the table travel reverse trip thingys. [you know what i mean] Anyway, the thing was grinding away nicely, when suddenly the table fed the wheel dressing attachment, [that was bolted to the end of the table] at full traverse speed into the wheel.. There was an almighty bang and the wheel exploded.. Happily all bits of wheel were contained by the guarding, but it did stop the spindle dead. [Wonder it did not damage the thing..] [hit the diamond out of the dresser was all] From memory [it was nearly 40 years ago] the wheel speed was about 3000rpm?? Made a big bang anyway!! john.. [/QUOTE]
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