HELI-WORM GEAR BOX

BI-DIRECTIONAL

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0.16 H.P. to 5 H.P.

7.5:1 to 240:1 Ratio

Long Life

Precision Rollers

Support & Assitance Provided

On Time Deliveries

Overview

Gearboxes, also known as gear drives, are the arrangement of their shafts or the way that they mount to the driven equipment. However, it is important to realize that shaft arrangement and mounting are two different characteristics of the drive.

Therefore, it is important to know both aspects to successfully determine the best gearbox for your application. The shaft arrangement on a gear drive is the location of the high-speed and low-speed shaft extensions relative to each other.

This is dictated by the position of the motor and driven equipment and is sometimes constrained by the physical space of the application. The orientation of high and low-speed shafts as they relate to the naming of the different types of gear drives may seem very simple, but there are reasons why you would choose one over the others when determining the best gearbox for your application.

The primary determinant for selecting the type of gearbox is space limitations in a system. Because the shafts are oriented differently, your driving equipment, or motor, will be in a different location depending on which type of gear drive is selected.

Benefits & Uses:

Industries	Applications
Agriculture	Heavy duty bulk material handling
Automotive	Heavy duty process specific
Cement	Water treatment
Energy	Aggregate & construction equipment
Forest	Grain handling
Mining

Cement & Aggregate	Light to medium duty conveying
Sand-Gravel	Belt conveyors
Mining	Classifiers
Grain	Separators
Baggage/Package Handling
Pic-Pac-Retrieval
Energy
Metal Processing

Agriculture	Conveying
Automotive	Reclaimers/stackers
Cement & Aggregate	Crushers
Energy	Mills
Mining	Feeders
	Pumps
	Dryers
	Mixers/blenders
	Agitators
	Loaders/unloaders
	Elevators

Agriculture	Conveying
Food & Beverage	Reclaimers/stackers
Cement	Crushers
Forest	Mills
Mining	Feeders
	Pumps
	Dryers
	Mixers/blenders
	Agitators
	Loaders/unloaders
	Elevators

Specifications

Technical Specifications

Selection of Heli-Worm Gearbox (Input 1500 RPM)

Model					HW-50	HW-60	HW-70	HW-80	HW-90	HW-110	HW-130	HW-150
Gear			Output	Capacity
Ratio	I1	I2	RPM
75	3	25	20	HP1	0.70	1.13	1.48	1.90	2.72	4.44	5.94	8.64
				KW1	0.53	0.85	1.11	1.43	2.04	3.33	4.46	6.48
				T2	185	299	392	503	720	1175	1573	2287
				DE	74	74	74	74	74	74	74	74
				M-HP1	0.33	0.5	0.75	1	1.5	2	3	5
				M-KW1	0.2475	0.375	0.5625	0.75	1.125	1.5	2.25	3.75
				M-T2	87	132	199	265	397	529	794	1324
				SF	2.12121	2.26	1.9733	1.9	1.81333	2.22	1.98	1.728

90	3	30	16.67	HP1	0.59	0.84	1.32	1.66	2.42	3.99	5.35	8.10
				KW1	0.44	0.63	0.99	1.25	1.82	2.99	4.01	6.08
				T2	187	267	419	527	769	1268	1700	2573
				DE	74	74	74	74	74	74	74	74
				M-HP1	0.33	0.5	0.75	1	1.5	2	3	4
				M-KW1	0.2475	0.375	0.5625	0.75	1.125	1.5	2.25	3
				M-T2	105	159	238	318	477	635	953	1271
				SF	1.78788	1.68	1.76	1.66	1.61333	1.995	1.783333	2.025

120	3	40	12.5	HP1	0.43	0.68	1.08	1.31	1.81	3.25	4.10	6.48
				KW1	0.32	0.51	0.81	0.98	1.36	2.44	3.08	4.86
				T2	172	272	433	525	725	1302	1643	2596
				DE	70	70	70	70	70	70	70	70
				M-HP1	0.25	0.33	0.5	0.75	1	1.5	1.5	2
				M-KW1	0.1875	0.2475	0.375	0.5625	0.75	1.125	1.125	1.5
				M-T2	100	132	200	301	401	601	601	801
				SF	1.72	2.0606	2.16	1.74667	1.81	2.1666667	2.733333	3.24

150	3	50	10	HP1	0.34	0.51	0.84	1.13	1.33	2.51	3.50	5.13
				KW1	0.26	0.38	0.63	0.85	1.00	1.88	2.63	3.85
				T2	165	248	409	550	647	1221	1703	2496
				DE	68	68	68	68	68	68	68	68
				M-HP1	0.25	0.25	0.33	0.5	0.5	1	2	2
				M-KW1	0.1875	0.1875	0.2475	0.375	0.375	0.75	1.5	1.5
				M-T2	122	122	161	243	243	487	973	973
				SF	1.36	2.04	2.5455	2.26	2.66	2.51	1.75	2.565

180	3	60	8.33	HP1	0.27	0.40	0.65	1.00	1.10	2.14	3.13	4.32
				KW1	0.20	0.30	0.49	0.75	0.83	1.61	2.35	3.24
				T2	148	220	357	550	604	1176	1720	2374
				DE	64	64	64	64	64	64	64	64
				M-HP1	0.25	0.25	0.33	0.5	0.5	1	1.5	2
				M-KW1	0.1875	0.1875	0.2475	0.375	0.375	0.75	1.125	1.5
				M-T2	137	137	181	275	275	550	824	1099
				SF	1.08	1.6	1.9697	2	2.2	2.14	2.086667	2.16

210	3	70	7.14	HP1	0.22	0.38	0.59	0.83	0.87	1.85	2.79	3.64
				KW1	0.17	0.29	0.44	0.62	0.65	1.39	2.09	2.73
				T2	132	228	355	499	523	1112	1677	2188
				DE	60	60	60	60	60	60	60	60
				M-HP1	0.25	0.25	0.33	0.33	0.33	1	1.5	2
				M-KW1	0.1875	0.1875	0.2475	0.2475	0.2475	0.75	1.125	1.5
				M-T2	150	150	198	198	198	601	902	1202
				SF	0.88	1.52	1.7879	2.51515	2.63636	1.85	1.86	1.82

240	3	80	6.25	HP1	0.16	0.26	0.39	0.57	0.74	1.07	1.71	2.45
				KW1	0.12	0.20	0.29	0.43	0.56	0.80	1.28	1.84
				T2	104	170	254	372	483	698	1116	1599
				DE	57	57	57	57	57	57	57	57
				M-HP1	0.25	0.25	0.25	0.25	0.25	0.33	0.5	0.75
				M-KW1	0.1875	0.1875	0.1875	0.1875	0.1875	0.2475	0.375	0.5625
				M-T2	163	163	163	163	163	215	326	489
				SF	0.64	1.04	1.56	2.28	2.96	3.2424242	3.42	3.266667

Features

Salient Features

Speed Variations:

By feeding fixed speed to Variator, steeples speed variation can be obtained from

Max. Speed = 1.7 x Input speed to
Min. Speed = 1/7 x input speed
Max.Speed/Min.Speed = 12:1 to 3:1 depending upon selection

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Torque Multiplier:

When speed is reduced, Variators can replace Gear Boxes.

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Speed Multiplier:

Up to 1.7 times input speed without necessity of speed increasing gear.

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High Output Torque – Over Load Capacity:

Up to the standstill of an electric motor of the same power acting as a mechanical clutch.

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High Efficiency:

Overall 85% throughout full speed range ideally used for constant power transmission applications in all types of Industries.

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Speed Holding:

Quite stable with uniform load and within 0.25% with Max. Load.

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Reliability:

Drive is highly reliable with long life as load is equally distributed on number of conical Rollers, which are hardened, and ground to close tolerance.

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Simple Design:
Can be attended by skilled fitter as no electronic/electrical parts/circuits are involved.

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Compactness:
High Power Transmission capacity with small dimensions.

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Speed Control:
Quick and simple. By rotating control knob in running condition only.

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Free From Noise And Vibrations:
No moving parts like Chins, Belts, etc. Drive is through rolling action of PRECISION ROLLERS, which are continuously lubricated. All components are well balanced.

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Bi-directional Rotation Of Output Shaft:
Clockwise/Anti Clockwise depending upon Input shaft rotation, viz. Anti Clockwise/Clockwise respectively.
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Totally Enclosed Unit:
Ideal for hazardous zones.
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Maintenance:
Practically maintenance free. Only ensure proper lubrication.
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Collinear Input & Output Shaft:
In-Line Input and Output Shafts.
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Before Selecting the Variator Consider Following:

Load Factors:

Uniform load: 1
Medium shock load: 1.5
Heavy shock load: 2

Service factors:

8 Hours running – 1
16 Hours running – 1.25
24 Hours running – 1.5

Efficiencies of various driving elements used in drive system.

For frequent start/stop, reversal operation, and high moment of inertia load consult us

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For Further Reduction Use At The Output Shaft Of The Variator:

Chain drive (positive)
Belt drive (slip occurs) For reduction up to 4:1
Suitable reduction gear boxes (worm/helical) by Elmrad

Uses

Heli Worm Gear Box Uses and Applications

We shall use fA to designate the application factor (Ca or Ka in AGMA standards and Ka in ISO standards) pr external overload factor deriving from the operating characteristics of the driving and driven engines are defined according to uniform operation. Operation with light shocks and operation with medium shocks: also three classes of driven machine are defined according to uniform loads, medium shock loads, or heavy shock loads. Consult Table 1 for a general explanation.

Table 1 :-

Driven Machine
U	M	S

Uniform Operation	Electric Motors, Turbines, Hydraulic Motors	1	1.25	1.75
Operation With Light Shocks	Combustion engine with 4-6 cylinders	1.25	1.5	2
Operation With Medium Shocks	Combustion engine with 1-6 cylinders	1.5	1.75	2.25

	U = Machine with Uniforms Load
	M = Machine with Medium Shock Load
	S = Machine with Heavy Shock Load

Application Factors:

Load Factor

Application Sector

AGITATORS

Uniform Product Density

Variable Product Density

ALIMENTARY

Mashers, Boilers, Screw feeders,

Blenders, Peelers, Cartoners

(1) U, M

WINCHES

Lifting

Dragging

Reel Winders

PEPER MILLS

Winders, Dryers, Couch Rolls,

Mixers, Extruders, Thickeners,

Cutters, Glazing Cylinders

CHEMICAL

Extruders, Printing Presses

Mixers

COMPRESSORS

Centrifugal

Rotating

Axial Piston

DREDGES

Conveyors

Extractors, Cutter Head Drives

BUILDING

Cement Mixers, Screw Feeders

Crushers, Batchers

Stone Breakers

ELEVATORS

Belt Type, Escalators

Bucket Conveyors, Hoists, Skip Hoists

Public Lifts, Mobile Scaffolding

(1) U, M

CRANES

Translation

Slew

Lifting

WOOD

Stackers

Transporters

Saws, Thicknessers, Routers

MACHINE TOOLS

Boring Machines, Broaching Machines, Shearing Machines

Bending Machines, Press Forgers

Power Hammers, Rolling Mills

MIXERS

Uniform Density Product

Variable Density Product

EARTH MOVING MACHINERY

Rotating Shovel Excavators

Transporters

M, S

PUMPS

Centrifugal

Double Acting Volumetric

Single Acting Volumetric

CONVEYORS

On rails

Belts

WATER TREATMENT

Screw Feeders, Disintegrators

Mixers, Settlers

Oxygenators

FAN UNITS

Small

Large

Mounting Dimensions

Reach Us

Share Your Requirements for Customised Solutions! We are Happy to Assist You 🙂

OUR RANGE OF PRODUCTS

HELI-WORM GEAR BOX

BI-DIRECTIONAL

Support & Assitance Provided

On Time Deliveries

Overview

Specifications

Technical Specifications

Features

Salient Features

Uses

Heli Worm Gear Box Uses and Applications

Mounting Dimensions

Mounting Dimensions

Reach Us

Share Your Requirements for Customised Solutions! We are Happy to Assist You 🙂

OUR RANGE OF PRODUCTS

INDUSTRIAL BLADES

BANDSAW MACHINES

GEAR BOXES

VARIABLE DRIVES