Bellows couplings are an excellent choice when selected for the proper application. We asked Bobby Watkins of Ruland Manufacturing to give us some insight on proper coupling selection. The following is an excerpt from the bellows coupling section of his Webinar, Master Coupling Selection: A Guided Journey by Bobby Watkins. Bellows couplings are for precise […]
ruland
Zero-backlash jaw couplings: Drawbacks and benefits
Updated October 2019 by Lisa Eitel || Zero-backlash jaw couplings are suitable for an array of applications. Here, Bobby Watkins of Ruland Manufacturing sheds some insight on their benefits and drawbacks. Zero backlash jaw couplings are our fastest growing product over the last 10 years. They’ve got some great characteristics under the right circumstances. There […]
What are the pros and cons of beam couplings?
Beam couplings are an excellent choice when selected for the proper application. We asked Bobby Watkins of Ruland Manufacturing to give us some insight on proper coupling selection. The following is an excerpt from the beam coupling section of his Webinar, Master Coupling Selection: A Guided Journey by Bobby Watkins. “We’re going to start off […]
Rigid couplings for mixers
Mixers are one of the most common industrial applications. They feature a motor coupled to a paddle or propeller. While the connection is simple, mixers can be used in chemical, food, paint, adhesive and other industries complicating coupling selection. The versatility and flexibility of mixers are what makes them challenging to specify a coupling for. […]
Mountable shaft collars from Ruland
Ruland has released a new line of mountable shaft collars with flats and tapped holes or tapped holes only in the outer diameter, allowing for easy mounting of shaft collars to each other or adjacent assemblies. Clamp style designs are used allowing for benefits such as not marring the shaft, indefinite adjustability, and high holding […]
Shaft collar evolution
The first mass-produced collars were used primarily online shafting in early manufacturing mills. These early shaft collars were solid ring types, employing square-head set screws that protruded from the collar. Protruding screws proved to be a problem because they could catch on a workmen’s clothing while rotating on a shaft, and pull them into the […]
Locking devices: basic designs and applications
A locking device is a mechanical component that prevents mated shafts and other machine elements from moving out of position when subjected to external forces. Operating conditions such as initial installation error, temperature variations, vibration and others can all cause issues. These are critical components. The safety of an entire system often relies on locking devices. […]
Update on flexible-coupling considerations for OEM and plant designs
All couplings transmit torque and angular velocity. Flexible variations compensate for misalignment. Many of the latter even address vibration and improve system dynamics. Design considerations include machine or installation construction and backlash, torsional stiffness, damping, inertia, torque ratings, maximum rpm, size, misalignments, ease of installation, robustness, and cost. For power transmission (as in motors for […]
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 […]
Shaft collars for machine tools
To match the varied needs of machine tool manufacturers, Ruland Manufacturing Co., Inc. offers over 2,500 standard shaft collars. Machine tool manufacturers require round bore, threaded, and bearing locknut type shaft collars to meet the diverse needs of mills, lathes, bar feeders, coilers and other CNC controlled equipment. Ruland clamp style shaft collars are manufactured […]