Gear housing foot patterns are identical, eliminating expensive tower gear drive support modifications. The input shaft diameters and keyways are the same, so existing couplings and drive shafts do not have to be replaced.
All service ports are also easily accessible.
All ratios are reducing and defined as the ratio of input speed to output speed. Ratios shown in blue in each table are normally stocked and drives ordered with these ratios can be shipped within our normal lead time. Check with the factory for availability of all model ratios not shaded. Ratings AGMA and CTI recommend a minimum service factor of 2.0 for gear drives in cooling tower fan service when driven by electric motors or steam turbines. All ratings are service ratings and include a 2.0 service factor unless otherwise noted.