helical speed reducer

“EP series” inline helical equipment reducers include a HP range of ¼-100 HP, 37-147 mm box sizes, 2:1-120:1 speed ratios and a cast iron housing for unquestioned strength and reliability. Offered in a number of NEMA C-encounter quill style motor input flange configurations, the “EP” series allows users to quickly locate off-the-shelf NEMA motors in lieu of custom gear motors with special 1st pinion gears. EP’s bolt hole pattern, foundation to center line elevation, result shaft diameter and usable shaft duration match the “R” group of the inline market head producing plant retrofitting a breeze.
Product Features
2:1 – 120:1 ratios (other ratios offered as custom orders)
Box sizes 37 – 147
Built for high performance, 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 created to accept NEMA C-Face electrical motors
Drop-in for some major European-produced Inline reducer brands
2-year warranty
The precision planetary gear units of the EP series with surface helical gearing and preloaded double taper roller bearings make sure low-noise synchronism because of their immense load having capacity and rigidity even under high load conditions. The one-piece world carrier and the included needle roller bearings enable the transmission of high torques. The excess shaft sealing band ensures maximum security against dirt and splash water in accordance with protection class IP65.
The selection of an appropriate planetary gear for your
individual application.
Short delivery time
Small quantities on short notice. Delivery
time for larger quantities or special requests needs to be
checked individually
CAD drawings
Drawings for all series are available on request
For personalized solutions we draw from a sizable range of
single components. Depending on demand they might be
combined for you personally in a flexible way
EP isn’t only known for its comprehensive manufacturing
expertise. Our customers also revere us as skilled partners in
drive technology. This expertise is the basis of our planetary gear
We place great importance on your own flexibility in the configuration and
program of our planetary gears. Being faithful to your motto customer
satisfaction is always a priority.
Our high quality standards apply to most 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 additional development of our planetary gears is usually our driving force.
Close grained cast iron casing and flanges
Hardened steel helical gearing for long life
Anti-friction bearings
Double lip seals protect from oil leakage
Optional steel bolt-on base
Double bearing design upon input and output shaft
EP Gear’s 800 Series contains a focused collection of compact, heavy duty helical gear drives that offer long-life performance and simplified maintenance. A broad selection of reduction ratios fit a straight broader selection of specifications, while a variety of insight shaft configurations maximize flexibility. In addition, the number of products that complement this series of gear drives make it a perfect choice for today’s industrial distributor.
The 800 Series offers a functional interchange for ep and other European manufacturers’ helical gear drives,making it uniquely practical for replacement 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 output flange-mount models available
Output-shaft diameters from 3/4″ to 1 1 5/8″
The standard NEMA C-face design will accept any standard NEMA engine, making it exceptionally versatile.
Ratios up to 70:1 in just two stages means increased performance and reduced case size.
Accessible oil seals simplify schedule product maintenance.
All units could be double sealed on both input and output to withstand the rigors of also 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 or stainless steel epoxy coatings make these gear drives well suited for the most severe Washdown.
Correct angle bevel speed reducers decrease speed and increase torque from the driver end to the driven result in a drive system. They have got a beveled gear which allows the reducer to rotate in both directions and operate with low noise and vibration. They are typically crafted from durable, corrosion-resistant components like stainless steel.
Wide variety of accessories and non-standard designs
Single piece housing 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, encounter or bolt-on flange
The exclusive usage of the involute helicoid thread form on the worm and gear provides for high efficiencies and lengthy service existence on draglines and shovels. The hardened,floor and polished alloy metal worm develops a easy, work hardened surface on the bronze gear. Because of this, the worm gears wear in and improve with prolonged service while additional gears are wearing out.
Hardened, shaved or floor helical gears
Hollow & solid output shafts
Vertical & horizontal mountings
Fan cooled (standard)
Motor mounts
Cast iron or steel housings available


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