Servomotor couplings: Stiffness, damping, hunting, and stabilization considerations

Here we address considerations when specifying a servomotor coupling to satisfy servo requirements — ever-evolving specifications that become more demanding all the time. Tetsuya Niwa • Director of product planning and development Kei Yamada • Product Manager — Product planning and development Hiroki Goto • engineering specialist Paulo Castelo • Technical solutions supervisor Edited by […]

More efficient bearing lubrication

The time spent on greasing bushings can be substantial. Although some greasing globally is automated, much re-lubrication is performed by hand using a grease gun. This means that the time spent greasing one grease point totals between three and five minutes for the staff member involved, be they a lube technician, a maintenance engineer or […]

Timken RacePac front and rear wheel end assemblies

The Timken Company has announced the launch of its new Lightweight Timken RacePac Front and Rear Wheel End Assemblies. Each Timken re-engineered RacePac wheel end assembly weighs approximately two pounds lighter than existing RacePac hubs, which will enhance speed and strengthen performance on all types of tracks, while increasing race teams’ efficiency in the shop. […]

End-to-end coupling solutions for for cranes and hoists

When it comes to gearbox coupling applications, some misalignment is unavoidable. This is especially true for cranes and hoists due to their very heavy loads. Fortunately, you can manage misalignment by choosing the right couplings. Here are some options specifically for cranes and hoists: Connecting The Gearbox And Cable Drum Recommended for crane-lifting mechanisms, barrel […]

Lateral mounting safety couplings for extruders

R+W has expanded its line of ST series safety couplings, with a specially designed version now available for the protection of extruding equipment. Taking advantage of  the ball-detent safety element system, the driving and driven ends separate within milliseconds of a torque overload, protecting the extruder from damage and reducing expensive repairs and costly downtimes. […]

TB Wood’s cost savings calculator

TB Wood’s has created a new program that allows users to quantify cost and savings when selecting a Sure-Flex Plus EPDM or Neoprene sleeve. The program is now available at, or it can be installed as a smartphone app on any Android or Apple device. Users simply input their current maintenance interval, cost of downtime, […]

The value of integrating partners early in the design process

Edited by Mike Santora In the traditional product design model, bearing selection isn’t usually a large factor. Not much differentiates one bearing from another, the thinking goes, so why spend time considering the type of bearing to be used when they’re all basically the same? Jonathan Checketts and Kim Evans are on a mission to […]

Igus robolink designer for custom robots

Igus’ new robolink designer is a quick and easy configuration tool made for designing and specifying in low-cost robotic joints and complete arm assemblies. With the robolink designer users can now create a custom robot for their needs, simulate the movement of the robot, save  parts list for future reference and request a quote for the […]

Jaw couplings for precision conveyors

Ruland zero-backlash jaw couplings have a balanced design, accommodate all forms of misalignment and have high dampening capabilities, making them an ideal fit for precision conveyors with frequent starts and stops. These conveyor applications are often found on equipment used in semiconductor, solar, optical inspection, and medical automation. Jaw couplings offer system designers a wide […]

FAA compliance for GGB Bearing Technology

GGB Bearing Technology recently added EP 43 self-lubricating engineered plastic bearings to its growing list of Federal Aviation Administration (FAA)-approved products. GGB’s EP 43 passed FAA compliance requirements in a variety of flammability and toxicity tests for interior aircraft certification, making it suitable for interior aircraft applications such as seats, hinges, latches and passenger bins. […]

Emerson Bearing announces CAD library

Emerson Bearing Boston, a bearing company catering to Original Equipment Manufacturers (OEM) and Maintenance, Repair and Operations (MRO) markets around the world, is simplifying the bearing search process through their online computer-aided design (CAD) library, found at Emerson Bearing Boston has expanded the Technical Toolbox section of their website to include a CAD Library. […]

Sulzer finds engineering talent with summer intern program

Investment is an important process for any business. Investment in new facilities and manufacturing tools keeps the company modern, while investment in R&D helps to keep it at the top of its game within the industry. Of course there is another type of investment that shouldn’t be overlooked; investment in people. The Sulzer summer intern […]

Trelleborg gets Johan Sverdrup oil field contract

Located on the Utsira Height in the North Sea, 160 kilometers west of Stavanger, the Johan Sverdup oil field will be operated by electrical power generated onshore, significantly reducing offshore emissions of climate gases. Daily production during the project’s first phase is estimated at 440,000 barrels per day, while peak production is estimated to reach […]

Shaft collars, couplings, and mounts for conveyor systems

A full line of shaft collars, rigid couplings, and mounts for building conveyors with varying load capacities and environmental considerations are available from Stafford Manufacturing Corp. Stafford shaft collars, couplings and mounts are  suited for use in virtually all conveyor systems as stops, spacers, and mounting devices for guides, rollers, sensors, and other structural and […]

SKF on condition monitoring and smart sensors for bearings

Digitalization is most apparent in the consumer market, where music downloads, online shopping and on-demand TV are hailed as marvels of the digital age. However, digitalization is also having a huge effect on manufacturing. The ability to collect and manipulate vast amounts of digital information will catapult manufacturing into the future. By embracing digitalization, SKF […]

Turboflex Plus couplings for turbomachinery applications

Ameridrives and Bibby Turboflex, two international flexible coupling manufacturers, have collaborated to introduce a new series of high performance disc couplings designed to meet the stringent requirements of today’s turbomachinery market. The new Turboflex Plus couplings combine Turboflex and Ameridisc disc coupling technologies together with the experience of the Ameriflex diaphragm coupling to create a […]

Custom gear units drive log washers

Renold Gears has designed a heavy-duty, custom gearbox solution for a manufacturer of a special type of coarse material washers known as log washers. Effectively these are huge rectangular boxes, or troughs, usually fabricated from steel plate, containing two steel shafts with paddles attached along their length. They are commonly used for washing and sizing […]

X-Y-tip-tilt stage for rotary air bearings

PI (Physik Instrumente) introduces the A-60x MTT, stainless steel multi-axis top that combines with its offerings of PIglide rotary air bearing stages and platforms. Air-bearings have no rolling or sliding elements and deliver completely frictionless, non-contact motion, resulting in negligible hysteresis or reversal error, better geometric performance, and velocity stability, which are ideal prerequisites for […]

What’s the best seal design for my bearing application?

Matt McCormack, applications engineer for SKF, gives us a little insight into what design engineers are frequently asking him. Here, he specifically focuses on the basics of different seal designs for bearings. This article was taken from a short presentation by McCormack and has been edited for length and clarity. There’s always pros and cons […]

Timken to acquire Groeneveld Group

The Timken Company has announced that it has reached an agreement to acquire Groeneveld Group, a provider of automatic lubrication solutions used in on- and off-highway applications, for approximately $280 million. For the 12 months ending May 31, 2017, Groeneveld Group sales were approximately $105 million. The transaction is expected to be accretive to adjusted earnings per share […]

Backlash-free servo couplings for all drive constellations

mayr power transmission provides a wide spectrum of backlash-free, high-performance servo couplings and is permanently expanding its standard modular system. Furthermore, new, modern production processes ensure favourable prices and short delivery times. In addition, the company also stands for diverse, future-orientated solutions for safety brakes and overload clutches. For customers, this means high-quality power transmission […]

Sulzer at POWER-GEN Africa 2017

This year’s POWER-GEN Africa event is set to attract speakers and exhibitors from around the world to discuss the prominent issues of the industry and to present the latest innovations. As a leading independent repair specialist and pump manufacturer, Sulzer will be highlighting specialist services on offer to operators of gas turbines and other rotating […]

Lubrication and safety awareness month

Did you know, roughly 70% of bearing failure is caused by insufficient lubricant or lubricant contamination? Upgrading your lubrication program with automatic lubricant dispensers can increase employee safety and reduce the number of lubrication related issues such as: Bearing failure Unexpected downtime Over-greasing or Under-greasing Contamination A.W. Chesterton’s Lubri-Cup automatic dispensing systems provide the precise, […]

Plastic bearings for automotive throttle valves

Before sending an orange customized car on a 60,000 mile world tour, igus replaced 56 of the car’s standard parts with iglide plastic bearings, including one bearing in the throttle valve. The throttle takes the place of a carburetor on newer vehicles, and works by directly regulating the amount of air able to enter the […]

3D-printed bearings for student race car

The new TU Darmstadt racecar for the current Formula Student competition contains five ultralight 3D-printed components from Heraeus. A steering shaft bearing made out of a special aluminum alloy (AlSi10Mg) is nearly 50% lighter than the previous component. The new steering shaft bearing, designed and printed by Heraeus precisely to the specifications of the TU […]