Double Worm Gearing
The exclusive utilization of the involute helicoid thread form on the worm and gear provides for high efficiencies and long service life. The hardened, ground and polished alloy metal worm develops a clean, work hardened surface on the bronze gear. Because of this, the worm gears put on in and improve with prolonged service while additional gears are deteriorating.
Product Features
Single,Double and Triple Reductions Ratios of 5:1 to 175,000:1
Center distances of 2″ to 20″
Drywell construction upon 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 capacity “C” Face motor flanges
Motor scoops
ouble Reduction Worm Gearbox
Ever-Power Double Decrease Worm Gearboxes are two stage worm decrease units.
A specifically designed primary worm reduction unit is integrally mounted on a standard single decrease Ever-Power worm gearbox which forms the second stage. The composite devices provide the most small and rigid arrangement for large reduction of speed necessary for gradual shifting machinery. A wide selection of ratios up to 4900:1 is offered.
Double Decrease Worm Gear Container 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 selection of commonly used ratios from the overall range of Ever-Power Double Reduction Worm Gear Box. Information on other ratios on double reduction worm gearbox 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 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 versatility of shaft layout is definitely permissible with all sorts of Double Reduction systems. The dimension drawing for each series shows the different shaft handing plans and the appropriate reference should always be quoted when buying.
Our standard 700 Series – the heart of Ever-Power speed reducer products – has been serving industry reliably for over 40 years. Its confirmed modular style has set the market standard for overall performance and may be the most imitated product in the current worm gear acceleration reducer marketplace. But why accept a knock-off when you can have the initial – from Ever-Power.
Specifications
11 basic solitary 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 stock)
Features
Literature
Video
Contact
Product Features
The 700 Series’ large oil reservoir provides efficient heat dissipation and lubrication for longer operating lifestyle.
Its multi-position mounting versatility permits installation in practically 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 casing, fabricated of fine-grained, gear-quality cast iron, provides maximum strength for maximum durability, along with 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 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, 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 Reduction Worm Gear Devices are constructed using two one reduction worm gear devices. The principal worm gear device is specially made to install integrally on a standard single worm gear device which forms the secondary stage. The complete gear unit becomes compact and rigid in set up for slow moving machinery. A wide variety of ratio from 75:1 to 4900:1 is available. These equipment units are particularly suitable for high torque slow-quickness drives. Worm gearing conforms to BS-721.
Worm Gear Velocity Reducers: Double Reduction
Double Decrease Worm Gear Speed
Reducer Product Configuration
EP, Inc. manufacturers dual reduction Worm Gear reducers that are built to last. Double decrease units are made with the same high quality parts as the single reduction Worm Gear reducers.