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Proper installation of the housed unit is necessary. This includes the use of shafts that are clean, free from nicks and burrs, straight and of proper diameter. Follow Table 5: Recommended Shaft Tolerances. Do not mount the bearing on a worn section of the shaft. Use of shafts with hardness greater than Rc 45 will reduce effectiveness of locking devices. Also, it is necessary that the housed units and shafts are in alignment (Fig. 1). Verify that the mounting surfaces are in the same flat plane to help make sure good alignment is achieved. If shimming is required to minimize misalignment, use full shims across the entire housing base (Fig. 2). The bolts then need to be alternately torqued securely to their mounting supports. Flat washers should be used when installing any kind of housed unit (Fig. 2). |
