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The series A junior worm gear range is offered in unit sizes 280, 410, 510, 610, 730 and 860 based on a single universal case for each size, giving a high degree of common parts and interchange ability.

All units are designed with hollow output bores, output shafts can be fitted allowing handing to be changed without dismantling the unit. Double extended output shafts are also available.

Series A Junior gives a choice of 10 ratios from 5/1 to 70/1 and important features include high efficiencies and load carrying capacities combined with long life and reliability. All units are lubricated for life to reduce maintenance to a minimum.

Double Reduction Units (worm/worm)

These units consist of a standard single reduction unit with a smaller shaft mounted Series A unit fitted to the input shaft. 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, over-driven and vertical types, foot mounting and shaft mounting. All lubricated for life.

Motorised Units

Units are designed to be close coupled with standard dimension NEMA motors or are also available to accept standard dimension IEC motors.

Lubricated for life - fit and forget

Series A Junior units are factory filled with synthetic lubricant which means.

  • No oil level checks, topping up, draining or re-filling
  • No routine maintenance or danger of starting up without lubricant
  • They will mount in any location, however inaccessible
  • They are particularly suitable for locations where non contamination through leakage is essential.

For units running at input speeds below 500 rev/min with either the input or output shaft vertical, also for the second stage of all double reduction units irrespective of shaft disposition the lubricant level is simply increased - see lubrication instructions.

The 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.

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.

 

The ER Series of worm gear units are direct replacements for the David Brown (Radicon) series a heavy duty worm gear units. All critical dimensions and product quality is the same and the ER heavy duty worm gear range is available in the following types:

  • Underdriven ER - U
  • Overdriven ER - O
  • Vertical ER – V

The units provide power capacity up to 320 Kw in 4 sizes with worm gear centres from 10 inch to 17 inch. All worm gear units are offered with a choice of 11 standard ratios from 5 – 1 up to 70 – 1.

The high quality design and engineering of the ER worm gear range makes the product an ideal solution for the most arduous of industries and applications.

  • Worm Gear Applications
  • Cooling Tower Units
  • Conveyor Drives
  • Stirrer Units
  • Hoists
  • Lapping Tables
  • Steel cooling beds
For further information please contact your local branch.

 

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