Series AM – Mid Worm Gear
Our fully metric range of Series AM worm gear units are based on a single universal case for each size, giving a high degree of common parts and interchange ability.
Features & Benefits
Double Reduction Units (worm/worm)
These units consist of a standard single reduction unit with a smaller shaft mounted unit fitted to the input shaft. The three smallest sizes are fitted with shaft mounted Series A Junior units whilst the size 2002 is fitted with a size 1002 (C07 when motorised). The range extends the ratios available up to the maximum of 4200/1 making them ideal for fitting to slow moving machinery.
As with the single reduction units they are available in under-driven, overdriven and vertical types, foot mounting and shaft mounting.
Heavy Duty Stirrer Units
Based on the standard Series A Mid Range the Heavy Duty Stirrer Unit incorporates an extended bearing housing to accommodate a larger bottom bearing and increased shaft size, thereby enhancing the units capacity to absorb the high bending loads imposed during stirrer applications.
These units can be ordered with a dry-well option to minimise the risk of output shaft leakage.
Heavy Duty Stirrer Units
Based on the standard Series A Mid Range the Cooling Tower Fan Drive incorporates an extended top bearing housing to accommodate the larger wheelshaft bearing whilst maintaining a compact drive. Lengths of output shaft extensions are manufactured to client’s requirements to suit fan hubs.
Lubrication is entirely contained. Gears and lower bearings dip in the oil bath whilst oil is pumped to the top wheelshaft bearing by means of a built-in mechanical oil pump.
Two oil seals are fitted on both the wheelshaft and wormshaft, the wheelshaft extension incorporating a grease chamber. All exposed parts other than the extensions are finished with corrosion resistant paint. Units are supplied with BSP plugs fitted to the oil filler, drain and ventilator points, suitable for connection to the outsides of towers. Where specified on the order we can supply the necessary piping complete with ventilator, combined dipstick and oil drain.
| Features | Benefits |
| Accepts standard IEC/NEMA motors | Non dedicated industry standard motors readily available. Free motor brand choice |
| Cast Iron Case | Robust Design, minimal service . Increased plant availability |
| High torque capacity | Allows downsizing. Reduced costs |
| Modular construction (A Mid) | Quick build/availability. Increased plant availability |
| Atex compliant | Can be supplied against Group 2 or 3 for surface industries in designated hazardous locations, Zones 1 and 2 for gases, vapours and mists and Zones 21 and 22 for dust. |
Full Description
Our fully metric range of Series AM worm gear units are based on a single universal case for each size, giving a high degree of common parts and interchange ability.
Under-driven, over-driven and vertical types provide a choice of shaft arrangements in meeting the requirements of a wide variety of applications in the medium power range up to 75 kW.
All units are designed with hollow output bore, output shaft can be fitted allowing handing to be changed without dismantling the unit. Series A Mid Range gives a choice of 12 standard ratios from 5/1 to 70/1 and important features include high efficiencies and load carrying capacities combined with long life and reliability in service.
Product Options
| Unit Sizes: | 1002, 1252, 1602, 2002 |
| Input Power: | Up to 100kW (132 HP) |
| Output Torque: | Up to 8500 Nm (68000 lb.in.) |
| Gear Ratios: | Up to 70/1 in single stage, 4900:1 in double reduction |
| Motor Sizes: | IEC Frames from 80 to 132; NEMA Frames from 56 to 256 |
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