Figure 15.41 shows the heavy-duty hydraulic plunge dresser with sleeve and thrust bearings as in the previous example. Custom coolant porting is provided, and easy spindle removal is possible from the housing for roll changes. This unit is typically used for dressing multiple wheel assemblies.
15.17.7 DFW-HTG H eavy-Duty Hydraulic Spindle
The unit shown in Figure 15.42 is a comparable spindle to the DFW-HHD but using two pairs of ABEC 7 angular contact ball bearings to allow the spindle to be used with nonhydraulic drive systems. The housing casting can be custom-made to accommodate up to 500-mm shaft width.
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FIGURE 15.43 NTG plunge electric dresser for creep feed grinding. |
