Double Worm Gearing
The exclusive usage of the involute helicoid thread form on the worm and gear provides for high efficiencies and lengthy service life. The hardened, floor and polished alloy steel worm develops a easy, work hardened surface area on the bronze equipment. For this reason, the worm gears use in and improve with extented service while other gears are wearing out.
Single,Dual and Triple Reductions Ratios of 5:1 to 175,000:1
Center distances of 2″ to 20″
Drywell construction on vertical units
Solid shaft and hollow shaft designs
Fan cooled Essential oil level sight glass
30,000 PSI gray cast iron housings High-strength alloy steel on input and output shafts
Centrifugally cast phosphorous bronze gears
High-shock load capability “C” Face motor flanges
ouble Reduction Worm Gearbox
Ever-Power Double Reduction Worm Gearboxes are two stage worm reduction units.
A specially designed primary worm decrease device is integrally mounted upon a standard single decrease Ever-Power worm gearbox which forms the next stage. The composite models provide the most small and rigid set up for large reduced amount of speed necessary for slow moving machinery. A wide variety of ratios up to 4900:1 is available.
Double Decrease Worm Gear Package Sizes Available with us are 40, 50, 60, 75, 85, 100, 125, 150, 175, 200, 250, 300, 350, 430.
Nominal Gear Ratios: 100:1, 150:1, 200:1,300:1, 400:1, 600:1, 750:1, 1000:1, 1200:1, 2000:1, 2800:1
Nominal ratios listed are a typical collection of commonly used ratios from the entire range of Ever-Power Double Reduction Worm Gear Box. Details of other ratios on request.
Under Driven / Over Driven / Vertical Input or Output Shaft Edition / Shaft Mounted Version / All types with motor mounting adaptor /
motor – optional
The worm shafts are made of high quality case hardening steel, accurately generated, ground and super finished. The worm tires include phosphor bronze centrifugally cast rims of considerable sections welded to rigid centers. Considerable flexibility of shaft layout is usually permissible with all types of Double Reduction models. The dimension drawing for each series shows the various shaft handing plans and the appropriate reference should be quoted when buying.
Our regular 700 Series – the heart of Ever-Power velocity reducer product line – has been serving industry reliably for over 40 years. Its confirmed modular design has set the market standard for functionality and may be the most imitated product in today’s worm gear velocity reducer marketplace. But why settle for a knock-off when you can have the original – from Ever-Power.
11 basic one reduction sizes
8 basic dual reduction sizes
1/6 – 25 HP
5:1 – 100:1 ratios single reduction
100:1 – 3600:1 ratios double reduction
Non-flanged, NEMA C-face quill, and coupled input styles
Projecting and hollow output shafts
Projecting diameters from 1/2″ to 2-1/4″
Hollow output bore diameters from 5/8″ to 3-7/16″ (with over 20 bore sizes in stock)
The 700 Series’ large oil reservoir provides efficient heat dissipation and lubrication for longer operating existence.
Its multi-position mounting versatility allows for installation in virtually any position.
Housings are straddle-milled, top and bottom, for precise alignment of horizontal and vertical bases.
Internal baffles assure positive, leak-free venting.
The 700 Series’ rugged housing, fabricated of fine-grained, gear-quality cast iron, provides maximum strength for optimum durability, in addition to greater precision during worm and gear alignment.
Ever-Power’s 700 Series high-strength bronze worm gear is straddle mounted between heavy-duty tapered roller bearings to improve thrust and overhung load capacities, sizes 713-760.
Our 700 Series’ high-strength steel result shaft assures convenience of high torque and overhung loads.
Pipe plugs allow easy fill, level, and drain in any mounting position.
The 700 Series’ super-finished oil-seal diameters on both input and output shafts extend seal life.
Both 2D and 3D CAD drawings are available in our eCatalog.
DOUBLE REDUCTION GEAR
Ever-Power Double Decrease Worm Gear double reduction worm gearbox Systems are constructed using two one reduction worm gear devices. The primary worm gear unit is specially made to mount integrally on a standard single worm gear unit which forms the secondary stage. The complete gear unit becomes compact and rigid in arrangement for slow shifting machinery. A wide selection of ratio from 75:1 to 4900:1 is available. These gear units are particularly ideal for high torque slow-swiftness drives. Worm gearing conforms to BS-721.
Worm Gear Velocity Reducers: Double Reduction
Double Decrease Worm Gear Speed
Reducer Product Configuration
EP, Inc. manufacturers double decrease Worm Gear reducers that are built to last. Double decrease units are made with the same high quality components as the single decrease Worm Gear reducers.