1. Additional reinforcement of the building structure Earthquake-proof buildings generally consist of shear walls, cross braces, diaphragms, and moment-resisting frames. These components all serve to redistribute forces. For example, shear walls that are composed of several panels help buildings in motion keep their shape. Cross braces absorb compression and tensile forces by pushing back the […]
Ringfeder — Dynamical torsional stiffness: some couplings need finer tuning
The coupling is normally the softest element in the drive line, literally – but by no means the weakest link of the chain. Its configuration plays a decisive role in the functional capability of the driving and driven machine and in the reliability and lifetime of the entire drive system. The optimum adjustment of the […]
Ringfeder online calculator simplifies locking assembly selection
Locking assemblies and locking elements come in so many sizes and different technical features that it can be overwhelming to find the right one for your application. That’s why we have developed our online calculation tool that makes it easy to select the right product. Locking assembly selection made easy The online calculator evaluates your […]
Ringfeder on Carlyle Johnson JEB electric jaw clutches
Thanks to our recent acquisition of Carlyle Johnson Machine Company, we’ve added many brake and clutch products to our power transmission offering. One of these products is the proven Carlyle Johnson JEB electric jaw clutch. The JEB clutch features high torque in a compact form factor and excels in exact positioning, holding, and indexing tasks. […]
Locking assemblies optimize shredder performance for sustainable farming
Function principle Shredders are constructed with multiple blades that shred the residual crops. In principle, they have a motor that rotates the motor shaft which is fixed with a pulley, and the shaft with blades is fixed with a reducer pulley, with the result that the shaft speed is doubled. When the shaft rotates at […]
VBG Group acquires The Carlyle Johnson Machine Co., LLC
VBG Group has through its subsidiary Ringfeder Power Transmission US acquired all shares in The Carlyle Johnson Machine Co., LLC. Carlyle Johnson employs 50 people and has a turnover of USD 10.5 million with an adjusted EBITA-margin of 17% for 2021. VBG Group has acquired all shares in the US company The Carlyle Johnson Machine […]
Merger into RINGFEDER POWER TRANSMISSION GMBH
Ringfeder announced yesterday that its companies will merge beginning in 2022. Below is a letter released on the company’s website from Ringfeder Managing Director/CEO Thomas Moka. We are constantly working to simplify our business processes internally as well as for our customers and suppliers and to increase our efficiency. Therefore, we are pleased to inform you that […]
Ringfeder shrink discs safety covers
Specially developed and designed for shrink discs of the three-part series RINGFEDER RfN 4061 as well as the two-part series RINGFEDER RfN 4161, original RINGFEDER Safety Covers provide reliable and safe contact protection against screw heads of rotating shrink discs. They are made of high-quality black synthetic material, which features outstanding tear and abrasion resistance […]
TND Steel Disc Couplings with updated design for drive applications
Edited by Mike Santora Ringfeder recently updated its TND Series of steel disc couplings, which feature backlash-free torque transmission and excellent positioning accuracy in machines that involve synchronous operation, frequent starts, and stops or reversing operations. Typical drive applications include printing and packaging machines, compressors, pumps, and variable speed drives. Using in-depth finite element analysis […]
Ringfeder on safety, reliability, and cost benefits in steel mill applications
By Ringfeder Editor In a previous blog post, we explored the role our Shrink Discs, Locking Assemblies, and Gear Couplings play in steel mill bridle roll systems, offering ease of installation, removal, and replacement. Now, let’s turn to other applications within steel mills that can benefit from our heavy-duty power transmission components. Safety Couplings Minimize […]
Ringfeder’s TND steel disc couplings with updated design
RINGFEDER announces an updated version of its proven TND Series of steel disc couplings, which feature backlash-free torque transmission and excellent positioning accuracy in machines that involve synchronous operation, frequent starts, and stops or reversing operations. Typical drive applications include printing and packaging machines, compressors, pumps, and variable speed drives. Using in-depth finite element analysis […]
Ringfeder locking elements RfN 8006
High-quality RINGFEDER Locking Elements of the RfN 8006 series are used for friction-locked shaft-hub connections without screws. They completely wear- and maintenance-free, extremely compact and flexible to deploy, easy to assemble and disassemble and guarantee users maximum reliability and precision. Our locking elements are available to users with an inner diameter from 6 to 1,000 […]
Ringfeder on installation and disassembly in Cold Steel Mills
With their ease of installation, removal, and replacement, industrial Gear Couplings, Shrink Discs, and Locking Assemblies are suitable power transmission components for steel production equipment, which have some of the most demanding operating conditions around. One specific application within the steel industry involves the bridle roll systems in cold steel mills. Bridle roll systems, which […]
RINGFEDER locking assemblies optimized for bending loads
Uncompromising performance under extreme loads with specially developed RINGFEDER® Locking Assemblies for Bending Loads: One of the most challenging applications for our locking devices are belt drums which are used, e.g., in mostly large-scale conveyor systems for iron or copper ore, coal, and other mineral resources. The shaft-hub connections used between the drum shaft and […]
Understanding Ringfeder’s locking assemblies
Ringfeder offers many types of Locking Assemblies. These friction-locked shaft-hub connections precisely fasten all types of hubs. They can also bridge relatively large fit clearances and are easy to install, adjust and remove. When browsing the Ringfeder product page, one might notice that some of the standard Locking Assemblies come in different models. Here, Ringfeder […]
Ringfeder on the right coupling for heavy-duty hoist applications
Cranes and hoists are only as good as their couplings, which are essential to maintaining uptime and enhancing the safety and reliability of your operation. Without the right coupling, your crane or hoist may not function properly, causing your manufacturing process to grind to a halt. This kind of downtime is not welcome – especially […]
How locking assemblies enable HVLS fan applications to keep their cool
High-volume, low-speed (HVLS) fans play an important role in many applications, from agricultural processing to warehousing. These ceiling-mounted units can move large amounts of air due to their size, which generally exceeds 7 feet in diameter. In terms of their design, these fans have a geared motor that connects to a forged hub, which includes […]
Ringfeder locking assemblies for bending loads
Uncompromising performance under extreme loads with specially developed RINGFEDER Locking Assemblies for Bending Loads: One of the most challenging applications for our locking devices are belt drums which are used, e.g., in mostly large-scale conveyor systems for iron or copper ore, coal, and other mineral resources. The shaft-hub connections used between the drum shaft and […]
Ringfeder shrink discs
The high-quality original from the world market leader: RINGFEDER Shrink Discs are flange-shaped, friction-locked shaft-hub-connections and the more powerful and reliable alternative to conventional shrink fits, wedge, keyway, or polygonal connections. In contrast to internal locking devices, e.g. locking assemblies, the pressure is applied from the outside to the hollow shaft or hub, thus creating […]
Ringfeder releases GWE 5117 servo-coupling for hollow shaft connections
RINGFEDER has recently released its GWE 5117 series of elastomer jaw servo-couplings, featuring a new hub design. With its partially slit hub located directly under the jaws and two screw clamps, this model eliminates radial loads on the shaft and achieves uniform power transmission. This hub design also prevents premature wear and system failure. Designed […]
Ringfeder locking assemblies for securing rotors in impact crushers
Apart from transmitting the rotor torque, locking assemblies installed in crushers are subjected to further loads such as bending moments and radial impacts. The factors which have to be considered for these applications are briefly described in this article. Please also watch the video and learn how modern impact crushers work. Function principle Impact crushers […]
Ringfeder’s two- and three-piece shrink discs
Depending on your application, you may need a two- or three-piece Shrink Disc design to create a secure shaft-hub connection. Let’s explore some of their key similarities and differences to help you select the right one. General Shrink Disc Design A modern method for creating a mechanical shrink fit, Shrink Discs offer an even distribution […]
Ringfeder’s Elastomer Jaw Couplings GWE 5113
Torsionally flexible, backlash-free elastomer couplings with single-slit aluminum clamping hubs, highly compact design, and outstanding concentricity for vibration and shock damped, uniform power transmission. 7 different sizes Bore Diameter d: 4-56 mm (0.157-2.205-in.) Outer Diameter D: 24.5-94.5 mm (0.966-3.270-in.) Overall Length L: 32-102 mm (1.259-4.016-in.) Rotational Speed nmax: 4,000-15,000 1/min Torque T: 3-560 Nm (2.21-413.04 […]
RINGFEDER announces GWE 5113 servo-insert coupling with new hub design
RINGFEDER has recently released its GWE 5113 series of elastomer jaw servo-couplings, featuring a new hub design. This design eliminates radial loads and achieves uniform power transmission with an even clamp force and symmetrical arrangement of clamp and screw positions. GWE 5113 couplings precisely transmit torques from 3 to 560 Nm. The hub is slit […]
What’s reducing the service life of your metal bellows coupling?
It is generally assumed – and typical applications confirm – that metal bellows couplings reliably work over the entire service life of an installation if the coupling is correctly designed. In the future, this can no longer be taken for granted as applications are becoming more and more dynamic. Such applications require you to consider […]