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helical speed reducer

“EP series” inline helical gear reducers feature a HP range of ¼-100 HP, 37-147 mm box sizes, 2:1-120:1 speed ratios and a cast iron casing for unquestioned strength and reliability. Offered in a variety of NEMA C-encounter quill style motor input flange configurations, the “EP” series allows users to easily locate off-the-shelf NEMA motors in lieu of custom equipment motors with special initial pinion gears. EP’s bolt hole pattern, base to center line height, result shaft diameter and usable shaft length match the “R” group of the inline market leader producing plant retrofitting a breeze.
Product Features
2:1 – 120:1 ratios (other ratios available as custom orders)
Box sizes 37 – 147
Built for high efficiency, high strength, and low noise
All cast iron housings for unquestioned strength and reliability
Wide variety of ratios from 2:1 to 120:1
Horsepower range between 1/4 HP to 100 HP
Gears are precision ground for better rotation and quieter operation
Gearbox flanges are designed to accept NEMA C-Face electrical motors
Drop-in for most major European-produced Inline reducer brands
2-year warranty
The precision planetary gear units of the EP series with floor helical gearing and preloaded dual taper roller bearings assure low-noise synchronism due to their immense load carrying capacity and rigidity even under high load circumstances. The one-piece world carrier and the included needle roller bearings enable the transmitting of high torques. The additional shaft sealing band ensures maximum protection against dust and splash water relative to protection class IP65.
The selection of a proper planetary gear for your
individual application.
Short delivery time
Small quantities on short notice. Delivery
time for larger quantities or special requests has to be
checked individually
CAD drawings
Drawings for all series are available on request
For customized solutions we draw from a big range of
single components. Depending on demand they might be
combined for you in a flexible way
EP isn’t just known for its comprehensive manufacturing
expertise. Our clients also revere us as experienced partners in
drive technology. This expertise is the foundation of our planetary gear
We place great importance on your versatility in the configuration and
application of our planetary gears. Being faithful to your motto customer
satisfaction is always a priority.
Our high quality standards apply to all our planetary gearbox series.
Included in these are especially high gearing quality, low backlash and long
service life.
Fast response to customer requests and constant further development of our planetary gears is definitely our driving force.
Close grained cast iron casing and flanges
Hardened steel helical gearing for long life
Anti-friction bearings
Double lip seals guard against oil leakage
Optional steel bolt-on base
Double bearing design upon input and output shaft
EP Gear’s 800 Series contains a focused selection of compact, durable helical gear drives that offer long-lifestyle performance and simplified maintenance. A broad range of reduction ratios suit a straight broader range of specifications, while a variety of input shaft configurations maximize versatility. In addition, the number of products that enhance this series of gear drives make it a perfect choice for today’s commercial distributor.
The 800 Series offers a functional interchange for ep and other European manufacturers’ helical gear drives,making it uniquely practical for alternative applications.
Four basic sizes 1/6 – 10 HP
Over 40 different ratios 1.5:1 – 71:1 double-reduction ratios 36:1 – 250:1 triple-reduction ratios
Non-flanged and NEMA c-face input styles
Base-mount and result flange-mount models available
Output-shaft diameters from 3/4″ to at least one 1 5/8″
The standard NEMA C-face design will accept any standard NEMA motor, which makes it exceptionally versatile.
Ratios up to 70:1 in just two phases means increased performance and reduced case size.
Accessible oil seals simplify routine product maintenance.
All units could be double sealed on both input and result to withstand the rigors of actually the most demanding applications.
800 Series drives come pre-filled with synthetic lubrication for your unique mounting position.
Sizes 3 and 4 are lubricated for life which promotes trouble-free operation.
Washdown duty models in white-colored or stainless steel epoxy coatings make these gear drives perfect for the most serious Washdown.
Correct angle bevel speed reducers decrease speed and increase torque from the driver end to the driven end in a drive system. They have got a beveled gear that allows the reducer to rotate in both directions and operate with low noise and vibration. They are usually made out of durable, corrosion-resistant materials like stainless steel.
Wide variety of accessories and non-standard designs
Single piece casing with high structural stiffness
Easy and functional shaft-mounting design
Minimum maintenance requirements
High, reliable and tested performance
Ideal for the heaviest duties
This economical aluminum body helical speed reducer provides highly reliable power transmission for general purpose applications. These gearboxes offer affordable operation and superior overall performance over similar products.
5 sizes with aluminum housings
Torque capacity from 200-6000 inlbs
Ratios from 2.5:1 to 600:1
Output shafts in in . or metric dimensions
Input adapters for NEMA and IEC motors
Mounting via foot, face or bolt-on flange
The exclusive usage of the involute helicoid thread form on the worm and gear provides for high efficiencies and long service existence on draglines and shovels. The hardened,ground and polished alloy metal worm develops a easy, work hardened surface on the bronze equipment. For this reason, the worm gears put on in and improve with extented service while various other gears are deteriorating.
Hardened, shaved or ground helical gears
Hollow & solid output shafts
Vertical & horizontal mountings
Fan cooled (standard)
Motor mounts
Cast iron or steel housings available


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