Heavy Duty Worm gear

The AH worm gear range is offered in 3 basic unit types. Under-driven worm, over-driven worm and vertically mounted with output shaft. The units provide power capacity up to 839 kW in 6 sizes from size 10 to size 24 with worm gear centres from 254mm to 609mm.

All are offered with a choice of 14 standard ratios from 5:1 to 70:1. Motorised versions of all units are also available.

All units are fitted with high capacity taper roller bearings for generous overhung loads, position action oil seals, oil level sight glass and drain holes. Flange mounted units with vertical downshaft have drywells fitted as standard to eliminate a head of oil on the low speed shaft seal and prevent oil leakage. Upper and lower speed shaft bearings are grease lubricated when drywells are fitted. All units can be supplied with holdbacks. Shaft extensions can be supplied with metric or inch dimensions.

Double Reduction Units (worm/worm)

Double reduction worm units are constructed using two single reduction worm gear units connected together. All options of unit type and variant are available in double reduction with standard ratios extended to 4,200:1.

Shaft Mounted Single Reduction Worm Gear Units

Shaft mounted units can be mounted directly on to the driven shaft dispensing with connecting couplings and baseplates along with alignment of the unit and motor. Motorised units are available. Standard and special torque arms are available on request.

Single Reduction Stirrer Units

Stirrer units are offered in standard and heavy duty versions. The heavy duty version incorporating an extended bearing housing to accommodate a larger lower bearing and increased shaft size thus adding extra unit capacity to absorb higher shaft and bearing loads imposed during stirrer applications. Standard features also include top motor mount plate and brackets for V-belt drive, motor flange for direct drive. Drywells are fitted as standard to all units.

Single Reduction Cooling Tower Units

Standard cooling tower fan drives are available in 5 sizes. Size 10 to size 20. The design includes an extended wheelshaft and housing with the wheelshaft supported by standard taper roller bearings. Wheelshaft extensions are manufactured to suit customer requirements and fan hubs. Non standard ratios are available. Lubrication is entirely self contained. Gears and lower bearings dip in the oil bath. Oil is pumped to the top wheelshaft bearings by means of a built in mechanical oil pump. Two oilseals are fitted on both the wheelshaft and wormshaft and wheelshaft extensions incorporate a grease chamber. All exposed parts other than the shaft extensions are fitted with corrosion resistant paint. Units are supplied with BSP plugs fitted to oil filler drain and ventilator points suitable for connections to the outsides of the towers. If necessary Radicon can supply the necessary piping required by customers.

News & Events