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Large jaw couplings are now being offered for bore sizes up to 1-3/4” or 45 mm and torque capacities of 2,655 in-lbs (300 Nm). These new large jaw couplings are designed for use in precision systems with high deceleration and acceleration curves, such as those found in semiconductor, solar, conveyor, and warehouse automation applications.
Pre-assembled modular mounting systems are designed for adjustability across many mounting applications. Conveyor mounting systems emphasize strict parallel installation using a flange-bolt base and a conveyor rail guide. Sensor mounting systems offer flexibility in a mounting application with adjustable or 90-degree connectors, two-way bases, and various mounting brackets. Both systems include stainless steel rods (with or without scale) from 100mm to 300mm in length, zinc clamping levers, and connectors that allow adjustment of the rods’ position.
Mountable shaft collars with face holes are designed to mate directly with components such as sprockets, pulleys, and metallic plates. Ruland manufactures them with drilled holes for mounting flexibility or threaded holes for the most secure connection between the collar and mated component. They are offered in steel, aluminum, and 303 stainless steel in bore sizes ranging from 3/8” to 2” and 10mm to 50mm.
What Is The Maximum Size Jaw Coupling You Can Make With A Keyway?
What Is The Maximum Size Jaw Coupling You Can Make With A Keyway?
Release Date: March 4, 2019
Keyways are a common feature in jaw couplings. In this video you'll learn about Ruland's experiences manufacturing larger jaw couplings with keyways and the potential drawbacks to doing so.
Transcript
Location: Tewksbury, MA Question: Do you make a jaw coupling that will work with 32mm and 14mm keyed shafts? Answer: When talking to the user it was determined that this was a single direction, high torque pump application. Not at all a fit for a beam coupling which is probably why it originally failed. Unfortunately, we do not make a 32mm jaw coupling hub with keyway. It requires us to move the key location, which is a special. We have also had customer break hubs as there is not enough material between the key and the hub tenon or the key and the OD. This compromises the structural integrity of the coupling and has led to failures in the field. This application is generally not a great fit for a zero-backlash jaw coupling. For a single direction, non-precision pump application such as this one the user is better of with a straight jaw coupling.
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