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| Re: Flat wheel spots on the R46 (350537) | |||
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Re: Flat wheel spots on the R46 |
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Posted by Train Dude on Sat Dec 9 15:39:22 2006, in response to Re: Flat wheel spots on the R46, posted by BIE on Sat Dec 9 15:08:36 2006. Wheel truing is a necessary evil. Keep in mind that for every 1" of flats you remove, you remove a 16th to an 8th of an inch of tread. Since the tread is <3" on a new wheel, you want to be conservative with wheel truing lest the wheel will not serve it's entire service life. Small spots may be noisy but until they reach 3-4", they are not doing any damage to rails or roadbed. Many buffs or pseudo experts believe what they hear are flats when in fact, you cannot tell by ear. Things such as scale build-up and shelling can easily sound like flats. Visual inspection by a trained eye is the only way to tell. The greater concern in wheel defects is the flange profile. High, low or thin flanges can lead to some really undesirable results. Way back, I actually saw the flange of a wheel completely cut from a wheel due to a mechanical defect - forming a "hula-hoop" on the axle. The results were pretty predictable. |
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