Aleph DC1641W 3/8"D Press Fit Lead 1" Wht

Previously on MechMinutes: Shafting series, we covered primary considerations when selecting material and surface treatments. All past videos are posted for your viewing pleasure to get caught up to this week’s episode of Tolerances & Fits. A ‘tolerance’ is the allowable amount of variation from a specified dimension. When tolerances are combined between a shaft and bore, they can be classified into three categories known as ‘Fits’. The Clearance [Fit], Interference [Fit], and Transition [Fit] can either assist in assembly, or prevent them from being disassembled easily. A Clearance fit ensures a shaft can be freely inserted into the intended bore. This generally means the maximum limit of the shaft is less than the minimum limit of the bore diameter. An Interference fit guarantees the shaft and bore will interfere at every point within their tolerance zone. This is commonly referred to