Our worm gear worm reduction gearbox reducers offer a choice of a solid or hollow result shaft and feature an adjustable mounting placement. Both the SW-1 and the SW-5, however, can withstand shock loading better than other reduction gearbox styles, making them well suited for demanding applications.
Rugged compression-molded glass-fill polyester housing
Light weight and compact
Range of ratios
SW-1, 3.5:1 to 60:1
SW-5, 5:1 to 100:1
Solid or Hollow output shaft
Adjustable mounting position
Worm Gear Rate Reducers is rated 5.0 out of 5 by 1.
8 Ratios Available from 5:1 to 60:1
7 Gear Box Sizes from 1.33 to 3.25″
Universally Interchangeable Style for OEM Replacement
Double Bearings Used on Both Shaft Ends
Anti-Rust Primer Applied Outside and inside Gearbox
Shaft Sleeve Protects All Shafts
S45C Carbon Steel Shafts
Flange Mount Versions for 56C and 145TC Motors
Our standard 700 Series – the heart of EP Gear’s velocity reducer products – has been serving industry reliably for over 40 years. Its tested modular style has set the industry standard for performance and is the most imitated product in today’s worm gear quickness reducer market. But why settle for a knock-off when you can have the initial – from EP Gear.
11 basic one reduction sizes
8 basic double 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 share)
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, 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 maximum durability, and also greater precision during worm and gear alignment.
EP Gear’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 convenience of 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 lifestyle.
Both 2D and 3D CAD drawings are available in our eCatalog.
Correct angle gearboxes (worm and planetary) are durable and built for 90° turns. Inline reducers (parallel shaft and planetary) are a perfect match for motors with high input speeds, or when gearmotor effectiveness is important. Contact our technical sales staff for help determining which gearbox answer is best for you.
RIGHT ANGLE REDUCERS
WORM GEAR REDUCER
EP’s worm equipment reducers are designed with a hollow bore and invite for a corner switch with optional dual result. The reducers can be found in 12 ratios ranging from 5:1 to 100:1, with non-back-drivable ratios 30:1 and higher. Our right angle gearboxes were created with five mounting choices providing versatility when incorporating the reducer into product.
RIGHT ANGLE BEVEL GEARBOX
The proper angle bevel gearbox combines the top features of our correct angle worm and planetary inline reducers. With a solid and efficient correct angle configuration, our correct angle planetary gearboxes offer a robust solution. The proper angle bevel gearbox will come in 18 ratios ranging from 5:1 to 1000:1, and it is back-drivable at all ratios.
I-SERIES PLANETARY GEARBOX
Our I-Series small planetary gearbox configurations provide the smallest footprint and quietest operation of our speed reducers. These gearboxes are designed to deal with varying loads with little backlash. With frame sizes 52cm, 62cm, and 81cm, 12 ratios ranging from 5:1 to 308:1, we have a solution to fit your needs. Our 52 frame size is also available with plastic-type material gears for noise-sensitive applications.
INLINE PLANETARY GEARBOX
Our inline planetary gearbox configurations supply the highest effectiveness and best result torque of all our swiftness reducers. These gearboxes are made to manage varying loads with small backlash. Planetary equipment reducers operate more quietly than parallel shaft reducers. With 18 ratio options ranging from 5:1 to 1000:1, we have a solution to suit your needs.
PARALLEL SHAFT GEARBOX
Parallel shaft gearboxes are the best choice for continuous duty applications. Their gear cluster design provides an effective method for dissipating warmth. Parallel shaft gearboxes have the shortest length of our inline equipment reducer options so they work well in environments with limited space. Our parallel shaft equipment reducers offer an affordable drop-in replacement solution for most small parallel shaft gearmotors.
Wormwheel gearboxes pass several names, including 90-degree gearboxes, right angle gearboxes, quickness reducers, worm gear reducers and worm drive gearboxes. Gear reduction boxes include a gear arrangement when a equipment in the form of a screw, also called a worm, meshes with a worm gear. These gears are usually made from bronze and the worms are steel or stainless steel.
While worm gears act like a spur gear, the worm gearboxes are significantly smaller than other equipment reduction boxes. A major benefit of worm equipment reducers can be that they generate an output that’s 90° from the insight and can be used to transmit higher torque or decrease rotational speed. Most often, a worm gearbox offers right hand threads; to change the path of the result, a left-hands thread worm gearbox is necessary.
Worldwide HdRS133-10/1-R Cast Iron Right Angle Worm Gear Reducer 10:1 Ratio
Cast Iron Worm Gear Reducers are available in center distances 1.33 – 3.25 inches in ratio’s from 5:1 to 60:1. The systems possess a one piece #Fc20 all cast iron housing, NEMA engine quill style input flanges or shaft inputs, come pre-stuffed with synthetic oil and also have a 12 months warranty.
Tapered roller bearings on the input and output shafts
Embedded double-lip oil seals
Anti-rust primer applied outside and inside of the gearbox
Air dry special dark paint
OUTPUT SPEED (RPM) 175
OVERHUNG LOAD LBS. 300
MANUFACTURERS PART Quantity HdRS133-10/1-R
CROSS REFERENCE Boston 713; Grove B213
DESCRIPTION Cast Iron Right Ange Worm Gear Reducer
BACKLASH (FT.) (ANGULAR A few minutes) 27
OUTPUT SHAFT THRUST LOAD (LBS.) 300
MAX INPUT HP 0.77
MAX TORQUE (IN-LBS.) 247
WCD CENTER INCHES 1.33
GEAR RATIO 10:1
Ever-Power EP series triple-reduction worm gear swiftness reducers are available in ratios from 5000:1 to 175,000:1 and middle distances from 7” to 20” (larger sizes available on request). Result torque ranges from 33,000 in lbs. for the 7” CD EP-70 to 582,900 in pounds for the EP-200. Mechanical HP insight requirements are from 0.09 HP for the 175,000:1 7 in CD reducer to 6.25 HP for the 5000:1 20” CD unit. These reducers can be found in four configurations: horizontal, vertical, shafted, and shaft installed.
These reducers are well suited for water/waste-water products drive applications such as for example thickeners and clarifiers, which require a vertical down shaft. Other available configurations also make Ever-Power triple reduction reducers perfect for make use of on mixers, elevators, solar power panels, astronomical telescopes, indexing tables, hoists, conveyors, or other process or materials handling systems where large torques/slower speeds are needed.
These reducers are also obtainable with a helical primary reduction stage and are termed the HDVM series
Enclosed Gears / Gearboxes
Enclosed gears, also referred to as gearboxes or velocity reducers, are open gears contained in a housing. The housing supports bearings and shafts, retains in lubricants, and protects the components from surrounding conditions. Gearboxes are available in an array of load capacities and acceleration ratios.
The objective of a gearbox is to improve or reduce speed. Consequently, torque output would be the inverse of the function. If the enclosed drive can be a quickness reducer, the torque output will increase; if the drive improves speed, the torque output will reduce. Gear drive selection elements include: shaft orientation, velocity ratio, design type, character of load, gear ranking, environment, mounting position, operating temperature range, and lubrication.
Basic Types of Gearboxes
Worm Gear Speed Reducers
A single reduction quickness reducer can achieve up to 100:1 reduction ratio in a small package. Referred to as right angle drives, these contain a cylindrical worm with screw threads and a worm. With an individual start worm, the worm gear advances only 1 tooth for every 360-degree change of the worm. So, regardless of the worm’s size, the apparatus ratio may be the ‘size of the worm gear to 1′. Higher decrease ratios can be created through the use of double and triple reduction ratios.
Helical Gear Speed Reducers
Provide high-efficiency speed decrease through 1, 2, 3, or 4 units of gears. Power is transmitted from a high-velocity pinion to a slower-speed gear. Helical gears usually operate with their shafts parallel to one another. Both most common types are the concentric (input and output shafts are in range) and parallel shaft (input and result shafts are offset). Single-stage helical gear reducers are usually used for gear ratios up to about 8:1. Where reduce speeds and higher ratios are needed, dual, triple, and quadruple equipment reduction stages can be used.
Cycloidal Disc Speed Reducers
Different from conventional gearing because they operate without a high speed pinion or gear teeth, and the elements operate in compression rather than shear. This is due to the design of the cycloidal discs that roll within a band gear housing, comparable to a planetary design. The main components are the eccentric cam, the internally flanged result shaft, the discs, and the ring gear housing.
Three Mounting Options
(L-R) Base Mounted, Shaft-Mounted, Gearmotor
(L-R) Base-Mounted, Shaft-Mounted, Gearmotor
Base-mounted reducers, that have feet for bolting, will be the most common.
Shaft-mounted reducers have a hollow output shaft that slips more than the driven shaft.
A gearmotor combines an enclosed gearset with a motor. A motorized reducer resembles a gearmotor except that it is driven by a separate NEMA C-face motor.
Seals and Breathers
Seals are used between the gear housing and input and output shafts to retain essential oil and prevent dirt. The most commonly utilized type, the radial lip seal, contains a metallic casing that fits in to the housing bore and an elastomeric sealing lip that presses on the shaft. Labyrinth seals are make use of for high-velocity applications, and consist of a housing with a series of rings that limit leakage. A breather is a plug with a hole that is mounted in the apparatus housing to permit airflow and relieve inner pressure.
Enclosed gears are usually lubricated with oil. The most typical types of essential oil are rust and oxidation inhibiting, extreme pressure, compounded, and synthetic. Other types consist of grease and solid film. Grease can be utilized for worm, planetary, cycloidal, and hypoidal reducers. Common distribution strategies are a splash system and a circulating system
Worm Reduction Gearbox App:
Worm drives certainly are a compact method of substantially decreasing rate and increasing torque. Little electric motors are usually high-speed and low-torque; the addition of a worm drive increases the selection of applications that it might be suitable for, particularly when the worm drive’s compactness is considered.
Worm drives are used in presses, in rolling mills, in conveying engineering, in mining market machines, and on rudders. In addition, milling heads and rotary tables are positioned using high-precision duplex worm drives with adjustable backlash.