[advertisement]

Worm Gears

PRODUCT NEWS | 2025-03-24

AutomationDirect Adds IronHorse Aluminum Worm Gearboxes with IEC Input

IronHorse worm gearboxes with IEC inputs offer all the same features and advantages as our existing aluminum models, including 30 mm to 75 mm frame sizes, 10:1 to 100:1 ratios in most sizes, and maintenance free operation. They are factory filled with synthetic oil and their double lip oil seals prevent leakage. These new models offer IEC input flange types B5 and B14 in order to fit IEC motors in frame sizes 63, 71, 80, and 90.

PRODUCT NEWS | 2024-11-18

OES Offers High Resolution Goniometer Stages

Optimal Engineering Systems, Inc. (OES) has added four high-resolution, low-profile goniometers to their expanding catalog of high precision positioning stages. This newly released, AK120-45 Goniometer Series features precision ground worm gears with a 296:1 ratio and pre-loaded cross roller guides, and +/- 45 degrees of travel with 10 kg of load. The very high resolution of 0.0006 degrees (2.16 Arcsec.) is realized when using the standard Two-Phase Stepper Motor driven by a 10 micro-steps per step micro-stepping driver or with the servomotor options and Quadrature Optical Encoders.

PRODUCT NEWS | 2024-11-14

Franz Morat Offers Drive Solutions at SPS 2024

The Franz Morat Group is exhibiting at SPS in Nuremberg in Hall 1, Booth 350. This year, the company is showcasing a wide range of precision gearing components and innovative drive technology solutions.

PRODUCT NEWS | 2024-09-12

Regal Rexnord Unveils Full Product Lineup for Second-Generation SS700 Series Stainless Steel Worm Gearboxes

Regal Rexnord Corporation has added two new models to its portfolio of Boston Gear Gen2 SS700 Series stainless steel worm gearboxes. The new sizes bring the full product lineup to seven. A larger output shaft bore expands the number of applications each model of gearbox can support, providing flexibility and versatility for customers in a range of industries, including food, beverage and pharmaceuticals. 

PRODUCT NEWS | 2024-07-10

Ketterer Brushless Wheel Hub Drives Suitable for AGVs

Ketterer i-Wheel 3213 wheel hub drives have been specially developed for use in Automated Guided Vehicles (AGV). They are designed as direct drives that are completely integrated in the hub and therefore need neither an additional gearbox nor an extra wheel.

PRODUCT NEWS | 2023-12-11

Boston Gear Expands 700 Series of Worm Gear Speed Reducers

Boston Gear recently introduced the next generation of its 700 Series Worm Gear Speed Reducer. The SS700 Gen2 stainless steel speed reducer is an evolution of its first-generation series that has served the food and beverage industry for over 10 years.

TECHNICAL ARTICLES | 2023-12-01

Precision Thread Rolling Process for High-Accuracy Lead Screws, Actuator Screws, and Power Transmission Components

Why use the rolling process to produce high accuracy lead screws, actuator screws, and other power transmission components rather than traditional cutting processes such as turning, grinding, milling, whirling, or hobbing? Rolling processes and cutting processes both produce a precise form on the workpiece. But if the form geometry, tolerances, and material selection allow, rolling is the process to beat. Speed, surface finish, fatigue strength, precision, dimensional stability, and material savings are some of the primary advantages realized when the rolling process is applied.

[advertisement]
PRODUCT NEWS | 2023-09-08

OES Offers New Series of Gimbal Mounts

Designed for larger cameras, tracking devices, telescopes, optics, and other devices, four new, high resolution, three axis gimbal mounts have been released by OES (Optimal Engineering Systems, Inc.).  This new series of Three Axis Gimbal Mounts are 588 mm wide by 463 mm high, and handle loads up to 10 kg.  The AU400-AER (Azimuth, Elevation, and Roll) Series of Three Axis Gimbal Mounts feature high precision 180:1 worm gear driven “V” groove rotary stages. Each axis is capable of 360 degrees of continuous rotation in clockwise and counterclockwise directions. The position is held economically when the motor current is removed as worm gears cannot be back driven.  The Roll Stage has a precision pattern of threaded holes for mounting tooling, cameras, lasers, etc., and a through hole for cables and optics.  Devices up to 395 mm wide can be mounted on the rotary stage. 

PRODUCT NEWS | 2023-04-28

OES Offers Goniometer Stages with Four Motor Options

Optimal Engineering Systems, Inc. (OES) has added four goniometers to their expanding catalog of high precision positioning stages. The new, AK160-30 Goniometer Series feature precision ground worm gears with a 400:1 ratio and pre-loaded cross roller guides offer +/- 30 degrees of travel with 30 kg of load.

TECHNICAL ARTICLES | 2020-12-01

Efficiency and Heat Balance Calculation of Worm Gears

If torque conversion with high gear ratio, compact installation space and 90-degree axis-crossing angle is needed, often worm gears are used. Due to their high power density and sliding speeds within the tooth contact, frictional heat and thermal stresses are higher compared to helical, bevel and hypoid gears, and thus the thermal load capacity of worm gears is lower.
TECHNICAL ARTICLES | 2019-08-01

Lubrication of Plastic Worm Gears

In the selection of lubricating greases for plastic worm gears, the user needs to know the influence of each grease constituent on the tribological performance in order to choose the appropriate lubricant. In this work, the effect of NLGI class, viscosity, base oil and thickener type are investigated separately regarding the efficiency and temperature close to the tribocontact. With the help of this contribution the user understands the effect of each parameter and learns about the potentially reachable efficiency and temperature ranges.
| 2019-05-02

Schaeffler Optimizes Lubrication Systems with Mechatronics

The following is an update on Schaeffler's DuraSense relubrication system for linear recirculating roller bearing, ball bearing, and guideway assem...
TECHNICAL ARTICLES | 2018-03-01

A New Standardizable Calculation Method to Predict the Efficiency of Worm Gear Drives

In this work a physically based method for the tribological investigation of worm gears is presented.
TECHNICAL ARTICLES | 2018-02-01

The Development of Worm Drives

A worm drive is a geared power transmission device in which a worm meshes with a worm gear to transmit power between two non-intersecting shafts that are oriented at a right angle. The worm drive has been an active and challenging topic of technological study since Leonardo da Vinci (1452-1519).
[advertisement]
ASK THE EXPERT | 2016-08-01

Worm Gear Cutting

I have a fairly straightforward question about a worm gear segment. But as of yet, I haven’t gotten a straight answer from any of the gear job shops I’ve approached about this job. Is there a "traditional" gear cutting method that can produce a ~180 degree enveloping worm gear segment when a feature on the back of the part will interfere with a complete rotation of the part? Or am I left with only the option of 4- or 5-axis surfacing with a CNC mill? I have presented this part to several well-known gear shops in the U.S. without a straight answer on how the part can be made. Any help you could offer would be appreciated.
TECHNICAL ARTICLES | 2015-06-01

Calculation of the Efficiency of Worm Gear Drives

This paper presents a physically grounded calculation method to determine the efficiency of worm gear drives. This computation is based on the Institute of Machine Elements, Gears, and Transmissions (MEGT) tribological simulation, which can determine the local tooth friction coefficients (Ref. 1). With this knowledge other power losses such as the bearings, oil churnings and seals power losses can also be calculated.
TECHNICAL ARTICLES | 2014-09-01

Evolution of Worm Gear Standards and their Consequences on Load Capacity Calculation Approach

Beginning with a brief summary and update of the latest advances in the calculation methods for worm gears, the author then presents the detailed approach to worm gear geometry found in the revised ISO TR 10828. With that information, and by presenting examples, these new methods are explained, as are their possibilities for addressing the geometrical particularities of worm gears and their impact upon the behavior and load capacity of a gearset under working conditions based on ISO TR 14521 — Methods B and C. The author also highlights the new possibilities offered on that basis for the further evolution of load capacity calculation of a worm gearset based on load and contact pressure distribution.
TECHNICAL ARTICLES | 2014-09-01

Load Capacity and Efficiency of Grease-Lubricated Worm Gears

Varying installation requirements for worm gears, as, for example, when used in modular gear systems, can necessitate grease lubrication - especially when adequate sealing for oil lubrication would be too complex. Such worm gears are being increasingly used in outside applications such as solar power plants and slew drives. While knowledge about the operating conditions is often appropriate, the basic understanding for load capacity and efficiency under grease lubrication is quite poor. Investigations done at FZG and sponsored by FVA/AiF are shown here to give an impression of the basic factors of load capacity and efficiency. The results of the investigation indicate a satisfying quality of calculations on heat, load capacity and efficiency based on characteristic parameters of the base oil with only slight modifications to the methodology known from DIN 3996 or ISO TR 14521.
FEATURE ARTICLES | 2011-06-01

(Material) Moving into the Future

a custom hydraulic brake system from Mico Inc. aid in the development of specialized material handling equipment.
TECHNICAL ARTICLES | 2008-06-01

Mold Machining Center Maintains Accuracy

Entrust enlists Advanced Machine & Engineering for 7-axis, 2-spindle performance.
FEATURE ARTICLES | 2008-02-01

Improved Fuel and Energy Efficiency Through Optimized Bearing Design and Selection

Today, better fuel economy is a main objective in the automotive development process. It remains top-of-mind with the auto industry and consumers because of costs and environmental impacts. Because the industry’s average fuel-economy standard is required to increase by 40 percent by 2020, manufacturers and engineers are working to develop fuel-efficient, environmentally friendly and reliable designs for vehicles.
[advertisement]