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 metal worm develops a soft, work hardened surface area on the bronze gear. Because of this, the worm gears use in and improve with prolonged service while various other gears are wearing out.
Product Features
Single,Double and Triple Reductions Ratios of 5:1 to 175,000:1
Center distances of 2″ to 20″
Drywell construction on vertical units
Multi-mounting configurations
Solid shaft and hollow shaft designs
Fan cooled 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
Motor scoops
ouble Reduction Worm Gearbox
Ever-Power Double Decrease Worm Gearboxes are two stage worm reduction units.
A specially designed primary worm reduction device is integrally mounted on a standard single decrease Ever-Power worm gearbox which forms the second 
stage. The composite systems provide the most small and rigid arrangement for large reduction of speed necessary for sluggish shifting machinery. A wide selection of ratios up to 4900:1 is offered.
Double Decrease Worm Gear Container Sizes Available around 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. Information on other ratios on request.
Under Driven / Over Driven / Vertical Input or Output Shaft Edition / Shaft Mounted Version / All sorts with motor mounting adaptor /
motor – optional
The worm shafts are constructed with high quality case hardening steel, accurately generated, ground and super finished. The worm wheels include phosphor bronze centrifugally cast rims of significant sections welded to rigid centers. Considerable flexibility of shaft layout is certainly permissible with all sorts of Double Reduction units. The dimension double reduction worm gearbox drawing for each series shows the various shaft handing plans and the correct reference should always be quoted when buying.
Our standard 700 Series – the heart of Ever-Power acceleration reducer products – has been serving industry reliably for over 40 years. Its confirmed modular style has set the market standard for efficiency and is the most imitated item in the current worm gear swiftness reducer market. But why settle for a knock-off when you can have the initial – from Ever-Power.
Specifications
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 result 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 share)
Features
Literature
Video
Contact
Product Features
The 700 Series’ large oil reservoir provides efficient heat dissipation and lubrication for longer operating life.
Its multi-position mounting versatility permits installation in virtually any position.
Housings are straddle-milled, best and bottom level, 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 equipment is straddle mounted between heavy-duty tapered roller bearings to increase thrust and overhung load capacities, sizes 713-760.
Our 700 Series’ high-strength steel result shaft assures capacity for high torque and overhung loads.
Pipe plugs allow easy fill up, level, and drain in virtually any mounting position.
The 700 Series’ super-finished oil-seal diameters on both input and output shafts extend seal existence.
Both 2D and 3D CAD drawings can be found in our eCatalog.
DOUBLE REDUCTION GEAR
Ever-Power Double Decrease Worm Gear Products are constructed using two single reduction worm gear systems. The principal worm gear device is specially designed to mount integrally on a standard single worm gear device which forms the secondary stage. The complete gear unit becomes compact and rigid in arrangement for slow shifting machinery. A wide variety of ratio from 75:1 to 4900:1 is available. These equipment units are particularly suitable for high torque slow-rate drives. Worm gearing conforms to BS-721.
Worm Gear Acceleration Reducers: Double Reduction
Double Decrease Worm Gear Speed
Reducer Product Configuration
EP, Inc. manufacturers dual reduction Worm Gear reducers that are designed to last. Double decrease units are made with the same top quality parts as the single reduction Worm Gear reducers.