2016年12月29日星期四

bevel helical gearbox with efficiency and interchangeability

The dual purpose of the bevel helical gearbox design can be used as a stand-alone single reduction inline reducer or as a bolt-on to the input of any c-faced gear reducer to multiply overall reduction ratio.
helical worm gearbox can get high efficiency gear reducers to you fast and save you some money!

2016年12月25日星期日

high precision Helical Bevel Gear Drive

Helical Bevel Gear Drive with high precision reduction gears are based on a new reduction mechanism and a new design of a radial-axial output bearing. As a result, the hollow shaft gearmotor represent a new generation of power transmission systems.

2016年12月21日星期三

Helical bevel gear motor with running smoothness

Helical bevel gear motor design for foot and flange mounting. Gear housing machined on all sides for universal application.
Optimized gearing geometry here and in all the other models results in exceptional running smoothness. For special environmental conditions the Helical Bevel Gearbox can be fitted with two shaft seals.

2016年12月17日星期六

he highest quality of helical bevel gears

helical bevel gears systems enable individual customer solutions at the highest quality.
You receive a one-stop drive system solution that meets all the demands required of drive technology.
Helical bevel gear motor with a wide range of services, competent advice, engineering, project scheduling, project management, setting up operations and support complete our extensive offerings.

2016年12月13日星期二

Helical gearmotors offers dual purpose design

Helical gearmotors offers a full line of Ratio Multipliers. The dual purpose design can be used as a stand-alone single reduction inline reducer or as a bolt-on to the input of any c-faced gear reducer to multiply overall reduction ratio.

Helical Worm Geared Motors stainless steel ratio multipliers provide superior resistance to corrosion in critical and harsh environments. The dual purpose design can be used as a stand-alone single reduction inline reducer or as a bolt-on to the input of any c-faced gear reducer to multiply overall reduction ratio.

2016年12月9日星期五

Max torque of helical worm gear motor

helical worm gear motor have higher torque ratings in a compact design. Available in case sizes 38-88. Utilize NEMA C-Face clamp collar mounting construction ranging from 56C thru 250TC. Stock rating hoursepower range of 1/4 HP thru 24 HP. helical worm gearbox ,Max torque of 347 thru 14,870 in-lbs.

2016年12月5日星期一

a wide range of Helical Bevel Geared Motors

Helical Bevel Geared Motors design is based on a compound epicyclic gearing system offering a high torque capacity and a wide range of reduction ratios in a very compact space. The patented thermo-plastic injection process gives the exclusive opportunity to increase the quantity of Shaft mounted gear motor.

2016年12月1日星期四

speed variator motor full range

planetary gearbox manufacturers manufacture a range of Reduction Gearboxes and Ground Gears which are very reliable and high-on performance.
speed variator motor make proper choice of materials along with good engineering process technology, ensuring smooth and safe power transmission.

2016年11月27日星期日

Helical Worm Geared Motors of best make to give frictionless output

Torkdrive Helical Worm Geared Motors are made of High Grade C.I. casting, with Alloy steel Hardened and Ground Gears. The Roller Bearings used are of best make to give frictionless output.
The Helical gearmotors are available in one, two and three stage reduction with wide seletion of output Ratios. These units are available for Power ratings for upto 250 Kw.

2016年11月23日星期三

a very compact, lightweight cycloidal speed reducer

cycloidal speed reducer features a hollow shaft with a diameter of up to 138 mm. This allows the feed-through of data cables and supply lines.

We developed the cycloidal speed reducers series as a very compact, lightweight and high-performance solid shaft gear. These gears are used in applications with limited space that require high torque performance.

2016年11月19日星期六

Torkdrive helical worm gear motor be especially lightweight and compact

helical worm gear motor feature an integrated input gear and a motor flange for all standard motor types. This makes them ideal for use in machine tools, in modern rotary tables and in different handling applications. The gears are manufactured locally and adapted for individual applications as required.

We designed these cycloidal speed reducers to be especially lightweight and compact. They can be operated with a right-angle (RDR-E) or straight (RDS-E) pre-stage or alternatively by means of a pulley input type (RDP-E).

2016年11月15日星期二

cycloidal reducer Product Portfolio

cycloidal reducer is connected to the spur gear stage of the gearbox via a pinion. The rotating speed reduces at this point relative to the reduction ratio between the pinion and planetary gear.
The planetary gearset are connected to crankshafts which drive the cams using needle bearings. These cams rotate inside the case which is lined with pins.

2016年11月11日星期五

Cycloidal gears offer unbeatable advantages

the speed of the cycloidal speed reducer is reduced by the double cams. Vibration is reduced by the two-stage reduction principle and low inertia. The force is also distributed very evenly, thanks to the roller cam design, and this contributes to the minimum hysteresis loss and enormous resistance to shock loading. Consequently, cycloidal gearbox are as versatile as they are resilient.

2016年11月7日星期一

Torkdrive high-reduction precision gears

Torkdrive high speed gearbox is the world's leading manufacturer of cycloidal precision gears. These cycloidal gearbox are used in drive technology whenever the highest demands are made for performance and efficiency. Today more than 3.5 million gears are currently in use. That means our company's products provide the movement in roughly 60 per cent of all industrial robots.

2016年11月3日星期四

Torkdrive Helical Worm Geared Motors precision and quality craftsmanship

Torkdrive Helical Worm Geared Motors are recognized worldwide for unparalleled precision and quality craftsmanship, and are completely designed and manufactured in the china.
 let one of our engineers help you select and customize the right custom fractional horsepower gear motor or custom gear motor assembly for your exact application.
Helical Bevel Geared Motor are considerably versatile for mounting. The machining of the components, carried out using numeric control machines, guarantees maximum precision for the restricted tolerances, producing a product that will remain reliable over time. The groups are constructed with aluminium casings from sizes 025 to 090, while the sizes 110 and 130 are made from cast iron.

2016年10月30日星期日

Torkdrive helical worm gear motor Custom options

helical worm gear motor are designed to be customized quickly and cost effectively. Custom options, including a wide range of output shafts configurations, mountings, finishes, colors, lead length and terminations, brakes, clutches, encoders, and options for totally enclosed non-ventilated (TENV) motors, totally enclosed fan cooled (TEFC) motors, and open-ventilated (OV) motors, helical worm gearbox engineers to customize the perfect right angle electric gear motor for your specific application, at a competitive price! It's time to get the custom right angle gear motor you really need at the price you want!

2016年10月26日星期三

shaft mounted helical gearboxes have over 100 series

shaft mounted helical gearboxes have over 100 series and thousands of dc motors and gear motors to meet customers’ requirements.

40*58mm motor gearbox plus 555PM permanent magnet DC motor & 36mm brushless motor
Small size dc gear motor with low speed and big torque
40*58mm Helical Bevel Gear Drive provide 1.0Nm torque and more reliable
Suitable to small diameter, low noise and big torque application
DC Gear motor can match encoder,11ppr
Reduction ratio:81、135、207、405、621

2016年10月22日星期六

Quiet operation with Helical Bevel Geared Motors

Helical Bevel Geared Motors series designation or PMDC right angle gear motor image for complete details. Series wound universal, AC, and brushless DC (BLDC) motor versions also available.
Helical gearmotors for:
Quiet operation
High performance gearing for strength and durability in critical applications
Rugged construction
Optional mounting to fit all applications
Custom design to meet your exact need
Unparalleled precision and quality craftsmanship
Competitive pricing

2016年10月17日星期一

Torkdrive Helical Worm Geared Motors to be fully customized for your

Torkdrive Helical Worm Geared Motors custom fractional horsepower permanent magnet DC (PMDC) right angle worm drive gear motors are ideal for battery or AC powered lifting and moving, medical mobility and lifts, conveyors, material handling and many other OEM motion applications.
The Helical gearmotors are engineered to be fully customized for your specific application, so you get the custom gear motor and quality you need, at the price you expect!

2016年10月13日星期四

Helical Bevel Gear Drive diameter range

Helical Bevel Gear Drive provide dc gear motors (dc motor+gearbox), gearbox diameter range from 12mm-52mm. and dc motor diameter range from 10mm to 52mm.
dc motor include metal/carbon brush motor,brushless motor, input speed range from 1500rpm to 20000rpm,gear motors include metal spur gear motors, small worm gear motors, shaded pole AC gear motor,synchronous motor and planetary gear motors.
The helical bevel gearmotor output speed range from 0.1rpm to 2000rpm, torque range from 0.01kg.cm to 600kg.cm,working voltage range 1.5v 3v 4.5v 5v 6v 7.2v 12v 24v.

2016年10月9日星期日

Helical Bevel Gear Drives for sizes and performance

Helical Bevel Gear Drives ,mainly provide dc gear motors (dc motor+gearbox), gearbox diameter range from 12mm-52mm. and dc motor diameter range from 10mm to 52mm.
A versatile range of modular aluminium bodied Worm
Gear Drives with a large range of mounting positions
Meet industry standards for sizes and performance
Offered with hollow shafts, output shafts, motors, double reduction units, shaft mounting, torque arms
Combinations of worm and helical gears offer great flexibility and very large speed reductions up to 5000 : 1
helical gears are manufactured from case hardened tempered steel (20MnCr5) and are accurately ground on the involute

2016年10月5日星期三

helical worm geared motor universal position mounting

helical worm geared motor are supplied complete with synthetic oil which allows universal position mounting, with no need to modify lubricant quantity. Moreover units without plugs reduce the risk of oil oxidation and contamination.

bevel helical gearbox ,12 Vdc, 3.5A, 88RPM (no load). Powerful, right-angle worm-gear drive. 18mm diameter gear on 47mm turntable rotates around 8mm shaft. Center shaft is stationary. Overall dimensions, including mounting holes, 7.50" x 5" x 1.87". Power terminals are inside a recessed connector housing, but are accessible.

2016年10月1日星期六

Torkdrive Helical Worm Geared Motors body casing design

Torkdrive Helical Worm Geared Motors has a shaft height between 30 and 110 mm (Baugrößen 030 bis 105) and a compact round smooth body casing design that reduces the space as much as possible.

Helical Bevel Geared Motors for better reliability and compatibility/effectiveness of supply, the gearing, the bearings, the motor flange and the accessories are those of the NMRV series.

2016年9月27日星期二

Helical Parallel Shaft Gear Motors with saving energy

Helical Parallel Shaft Gear Motors ,Modern design techniques and high quality components enable the Fenner Series C helical worm gear unit to out perform any other gearbox in terms of lowest cost/Nm. The Series C right angle range provides a highly efficient and compact solution to meet most requirements.
Paper mill gearbox ,Ratios from 8:1 to 13,500:1 up to 10,00Nm
Highly efficient gearing, saving energy and running costs

2016年9月23日星期五

Helical Bevel Gear Drive are extremely versatile

Helical Bevel Gear Drive is a particularly low-noise drive component. We would be happy to address your special requirements in respect of low backlash gear units and develop solutions entirely according to your needs. hollow shaft gearmotor is a compact drive unit in combination with three-phase AC and servo motors, they are extremely versatile. They have a 2- and 3-stage design and can achieve a torque of up to 1250 Nm and a ratio of up to i=1847.

2016年9月19日星期一

processing quality of the Helical worm Gearmotor

Helical worm Gearmotor ,Low backlash gear units are also available in other type series, but it is in the servo gear unit sector that processing quality is in particular demand. helical bevel gearmotor are individually matched at the drive side for each servomotor and deliverable in four different design sizes.  As low backlash gear units they naturally have an axially pluggable shaft coupling free from backlash.

2016年9月15日星期四

Torkdrive high speed reducer with a high efficiency

Torkdrive high speed reducer are specialists in customer-oriented drive technology. In the servo gear unit sector, in particular, we offer low backlash gear units with a high efficiency. Thanks to our many years of experience and constant further development, The small worm gearbox have become established as a market leader, integrating all our findings and innovations into our products.

2016年9月11日星期日

Different designs of the Helical gearmotors

Helical gearmotors with and without torque converters. Type E: gear unit with free input shaft.
precision gearmotor and motor flange for IEC motors, as well as with square flanges for servomotors on request also with a clamping set.
More than 50 % of our worm gear units are individually adjusted to meet the specific requirements of our customers.

2016年9月7日星期三

Torkdrive Helical Worm Geared Motors with optimum vibration damping properties

Torkdrive Helical Worm Geared Motors
These gear units combine the advantages of worm gear units with those of spur gear units:

In the first gear high revs range, the multiple worm shafts run at efficiencies of up to 95% at lubrication favourable gear unit ratios. Here, the crane gearbox stages have optimum vibration damping properties that provide optimized smooth running. Noise-optimized spur gear sets run in the downstream second or third gear reduction stages with equally good efficiency at lower speeds.

2016年9月3日星期六

the superior precision of Torkdrive helical bevel gears

Torkdrive helical bevel gears ,The angular transmission accuracy between the input and output shaft is described by the transmission error. The test result beside exemplarily shows the superior precision of these gears.

Measurement of the high speed planetary gearboxes: With the input gear fixed, the rated torque is applied to the output shaft in both directions and the elasticity is measured. At zero load (dead center), the distance delta-phi between upper and lower boundary graph of the hysteresis area is maximum 1 arc min.

2016年8月30日星期二

very low backlash with Helical Bevel Gear Drive

100% Continuous Contact of the Helical Bevel Gear Drive & gear teeth design provides high shock load capacity and very low backlash since forces are distributed throughout the reducer.

helical gear reducers ,The Patented 2-Stage Reduction Mechanism reduces vibration due to the lower speed rotation of the two cycloidal gears while the reduced input coupling size lowers inertia. A wide variety of ratios are possible by simply changing the first stage spur gear combinations.

2016年8月26日星期五

Helical worm Gearmotors with highly rigid component type

Helical worm Gearmotors provides high-end performance in a very compact and highly rigid component type configuration. The unit incorporates rolling contact elements to provide high efficiency and long life, integrated angular bearings to support external loads and a 2-stage reduction design to reduce vibration and inertia while increasing ratio capabilities.

The Helical Bevel Gear Drives is also available in Belt / Pulley arrangements.

2016年8月22日星期一

Helical Bevel Geared Motors with high torsional rigidity

Helical Bevel Geared Motors Very compact with high torsional rigidity
Component in-line version for greater design and space saving flexibility
Very compact with high torsional rigidity
bucket elevator drive ,Integrated Angular bearings for large thrust & overhung moment capacity
High Ratio availability (up to 185:1) without increasing gearbox size
Torque capacity up to 5X rated torque (E-Stop)

2016年8月18日星期四

mechanical structure of the Torkdrive Helical Worm Geared Motors

Torkdrive Helical Worm Geared Motors has the same mounting size as other manufacturer, but with higher quality & reasonable pricing. Torque range. Up to 1,500nm. Input power rating. 0.04kw ... 15kw. Ratios. 7.5 ... 100 (can gain larger ratios via adding up two gear units). Input configuration. speed increaser gearbox adaptors, solid input shaft. Output configuration. Solid with key, hollow shaft. Mounting solution. Flange mounted, foot mounted, shaft mounted. Optional accessory. Single output shaft, double output shaft, extension of input shaft, torque arm. Characteristic (worm gearbox):
1.compact mechanical structure, light weight, small-scale and high efficiency.
2.good temperature exchange capability and high reliability.
3.easy installation, link freely, easy verification.
4.high output torque and high load capability.
5.smoothly transmission, low noise, little vibration, and widely used.

2016年8月14日星期日

structure optimized of the Torkdrive Helical Worm Geared Motors

The compact and structure optimized gear housing of Torkdrive Helical Worm Geared Motors distinguish themselves by being machined on all sides and are therefore, ready for a variety of mounting options and applications. The unique motor position provides an almost flat and easy to mount on ”machine interface”. Various standard shaft executions and the double chamber shaft seals, developed by Watt Drive, are ready for use. Shaft and flange dimensions are equal to our helical worm gears.

In the basic executions the Helical worm Gearmotors are designed as 2 stage gears up to the size K. 75 (1.250Nm). The bigger gear boxes, beginning with the K. 77 (1.500Nm) are designed as 3 stage gears.

2016年8月10日星期三

Torkdrive helical worm gear motor for precise positioning

Torkdrive helical worm gear motor provide a high degree of efficiency of over 90% in both torque directions and at all input speeds. With performance designed to last – high-endurance gearing enables high-torque, wear-free operation. With our remarkably efficient helical-bevel gearmotors, you have energy-efficient angular gear drives at your fingertips. As Helical Bevel Gear Drives also have a long maintenance-free service life, they can be used in every application with AC asynchronous motors, asynchronous and synchronous servomotors. A reduced backlash version is available for precise positioning tasks for K37 to K187.
Available versions
Foot-mounted or flange-mounted
B5 or B14 Flange-mounted
Solid or hollow shaft
Hollow shaft with keyed connection, shrink disk, splined hollow shaft

2016年8月6日星期六

Torkdrive Helical Bevel Geared Motors ,High power density

The A Torkdrive Helical Bevel Geared Motors series is the first product to prove equally good in regard to efficiency and versatility within a highly competitive context, both performance- and price-wise.
High power density
Wear-free
Helical Worm Geared Motors with long service life
> 90% gear unit efficiency
Multi-stage gear unit for low output speeds
two-stage or three-stage versions
Reduced backlash option for three-stage version
Helical-bevel Gearmotor K Series

2016年8月4日星期四

Helical Bevel Geared Motors improved quality function

Helical Bevel Geared Motors for Agitators Mixers, Brewing and Distilling, Conveyors, Extruders, Food industry, Metal Mills, Hammer mills, Paper Mills,Lumber Industry, Rubber & Plastics Industries, Sewage Disposal Equipment, Oil Industry, Chemical plant, Textile Industry, Sugar Industry, Dry Dock Cranes.. and many more .
worm reducer gearbox consistently focus our attention on the quality management system. With our continuously  improved quality function, customers’ satisfaction on our products and service is guaranteed.

2016年8月2日星期二

top performance of the helical worm gear motor

helical worm gear motor provide market advance solution with efficiency and flexibility. high speed gearbox series also available as compact integral helical/worm option, has been designed with a view to modularity: low number of basic models can be applied to a wide range of power ratings guaranteeing top performance and reduction ratios from 5 to 1000.

2016年7月29日星期五

quiet operation of the Torkdrive Helical Worm Geared Motors

Torkdrive Helical Worm Geared Motors is based on an ingeniously simple principle. The speed reducer has only three major moving parts: the high speed input shaft with an integral eccentric cam and roller bearing assembly; the cycloid disc; and the slow speed output shaft assembly. The smooth, progressive rolling action of Helical Bevel Gear Drives eliminates friction and the pressure points of conventional gears. All of the torque transmitting components roll, and are symmetrically placed around the shaft for balanced, smooth, and quiet operation.

2016年7月25日星期一

Helical Bevel Geared Motors are designed for continuous duty

Helical Bevel Geared Motors are part of the modular system. With helical, bevel helical, helical worm, or variable speed gearboxes and three-phase AC motors with or without brakes, this system covers all possible drive combinations, right up to electronic variable speed drives. worm reduction gearboxes are designed for continuous duty. The sealed gearbox housings, made from gray cast iron or aluminum, are strong and absorb vibrations. A housing cover is not required for installing toothed components, which means that the housings are extremely rigid.

2016年7月21日星期四

the favorably-priced of the Torkdrive Helical Worm Geared Motors

Torkdrive Helical Worm Geared Motors are the favorably-priced solution for drives with angular geared motors. The efficiency is significantly better than that of pure worm geared motors due to the implementation as helical worm geared motors. Due to the worm gear stage, high ratios can be implemented within small envelope dimensions. Further, gearbox motors represent an extremely quiet drive solution. Helical worm geared motors represent the most cost-effective solution for angular geared motors in the lower torque range.

2016年7月17日星期日

all facets of the helical worm gear motor

helical worm gear motor, Gearmotors, Linear Actuators, Electro-Mechanical Power Transmission & Motion products to all facets of the African Industry.
Industrial AC Motors, Industrial DC Motors, Variable AC Speed Controls, Variable DC Speed Controls, helical bevel gear unit, Fractional DC Geared Motors, Fractional AC Geared Motors, Compact Industrial Gear Motors, Electro Mechanical Linear Actuators, Shaded Pole Geared Motors, Synchronous DC Motors, Synchronous AC Motors, Servo MotorsFrom: Mining – Aggregate – Cement – Petroleum - Chemical – Plastics – Materials, Baggage & Air Handling – Pulp - Paper - Printing - Packaging - Forestry - Timber – Steel / Aluminium – Agricultural – Power Generation & Aerospace industries to the Dental, Signage, Appliance and Electronics markets using Sub fractional & Micro motors.

2016年7月14日星期四

personalized recommendations of the Torkdrive Helical Worm Geared Motors

Torkdrive Helical Worm Geared Motors has nearly four decades of experience in new industrial electric motor sales from a variety of top manufacturers. Shaft mounted gear motor also stock and sell used and rebuilt electric motors, pumps, generators, hoists, and our highly skilled and experienced staff provides expert advice and personalized recommendations to help you identify the very best equipment for your specific needs.

2016年7月10日星期日

efficiency high performance of the Helical Bevel Geared Motors

The degree of efficiency high performance Helical Bevel Geared Motors and helical worm gearboxes is more than 90%. All worm shafts are made from case hardened alloy steel and the flanks are precision ground. The worm wheels are made from special wear-resistant bronze. helical worm geared motor are equipped with a helical gear. Worm gears with shrink disc, torque limiter, as well as adjustable backlash designs are also part of our standard product range.

2016年7月6日星期三

Advantages of the Helical Bevel Geared Motors

a compact drive unit in combination with Torkdrive Helical Worm Geared Motors, they are extremely versatile. They have a 2- and 3-stage design and can achieve a torque of up to 1250 Nm and a ratio of up to i=1847.

Drive Package versions in conjunction with the decentralised Inverter Drives 8400 motec cover a power range of up to 7.5 kW.

Advantages of the Helical Bevel Geared Motors:

2-stage and 3-stage gearboxes
Hollow shaft with keyway or shrink disc
Solid shaft with keyway
Foot or flange mounting
Torque plate, including rubber buffer

2016年7月2日星期六

a compact, low profile helical worm gear motor for you

helical worm gear motor For Mining and Construction Equipment - In applications where very high torque capacity and shock loading resistance are mandatory, double-enveloping worm drives provide rugged reliability. Because our worm gears offer high ratio reduction in a single stage, these helical worm gearbox provide a compact, low profile that is ideal for many types of mining equipment like feeder breakers, shuttles, and conveyors. Double-enveloping worm drives are also an excellent choice for rock crushers, which require high shock resistance.

2016年6月28日星期二

high speeds about Custom Helical Bevel Geared Motors

Custom Helical Bevel Geared Motors For Printing and Packaging Machinery - And since the gearing has low inertia due to its small size, large, complex presses and coaters can be started or stopped more quickly than those using heavier, multi-stage gearing.With very low backlash, Helical Bevel Gearbox helps printing press rolls maintain precise print registration at very high speeds. The gearing's high shock load capability allows extremely rapid speed adjustments during operation.


2016年6月23日星期四

Custom worm reduction gearboxes

Custom worm reduction gearboxes For Iron and Steel Production Equipment - With very high shock load resistance, double-enveloping worm gearing performs extremely well in slab pushers and side adjusters. Double-enveloping worm gearing is an ideal choice for screw downs, where high torque loads and frequent adjustments reduce conventional gearset life. worm Reducer is also used in furnace tilt drives, roll drives, and slitters, where high load capacity is required. Crane and hoist capacities can be increased with the high torque throughput and compact size of double-enveloping gear drives.

2016年6月19日星期日

price-wise of the Torkdrive Helical Worm Geared Motors

Torkdrive Helical Worm Geared Motors series is the first product to prove equally good in regard to efficiency and versatility within a highly competitive context, both performance- and price-wise.

The compact and structure optimized gear housing of the Helical worm Gearmotors distinguish themselves by being machined on all sides and are therefore, ready for a variety of mounting options and applications. The unique motor position provides an almost flat and easy to mount on ”machine interface”. Various standard shaft executions and the double chamber shaft seals, developed by Watt Drive, are ready for use. Shaft and flange dimensions are equal to our helical worm gears.

2016年6月15日星期三

mounting options of Torkdrive Helical Worm Geared Motors

Torkdrive Helical Worm Geared Motors provides a wide variety of industrial applications with incomparable gearing performance. Developed with more performance features and up to 40% higher output torque ratings, the gearmotors series affords design engineers unbounded shafting and mounting options, motor connection options, and gear configurations. gearmotors Encore Modified speed reducers can be uniquely customized to suit specific application requirements.The series sets the benchmark for unique, powerful performance!

2016年6月11日星期六

smoother operation of the Torkdrive Helical Worm Geared Motors

Torkdrive Helical Worm Geared Motors are a crucial part of many motors and machines. Gears help increase torque output by providing gear reduction and they adjust the direction of rotation like the shaft to the rear wheels of automotive vehicles.  The geared motors have a smoother operation due to the angle twist creating instant contact with the gear teeth.