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Want to learn a little more about Rigid Couplings?
View the following presentation outlining the different rigid coupling types, materials used, and applications rigid couplings are commonly found in.
Shaft Couplings serve as components to time, join, or align shafts at lower speeds and torque, especially when zero backlash is desired. They are not intended for use as a critical part of a drive line or as a substitute for flexible or universal joints or other power transmission devices. Rigid couplings are designed for aligned shafts only, and are the most basic but often the most cost-effective coupling.
For more information check out the following: Rigid Couplings Infographic:
Collar resistance to axial motion on the shaft is primarily a function of screw size. The tables indicate maximum static load that a collar will support without slippage. It is based on screws atfull recommended seating torque, and for set screw collars, shaft hardness not exceeding Rockwell C35. Continue reading “What is your axial load capability?”
Climax manufactures rigid set screw couplings and rigid clamping couplings. We also offer customized dimensions, specialized plating and manufacture from a variety of materials.
Set Screw Couplings are secured to the shaft by set screws that impinge upon the shaft. Set screw couplings are also available with a keyway for keyed shafts.
Clamp Couplings are designed in a one-piece and Continue reading “What type of rigid coupling does Climax manufacture?”
Steel Couplings are the most commonly used and manufactured. The exact type of steel used varies depending on the machine process but generally low-carbon steel is used, including materials such as 1215, 1045, and 1026.
Stainless Steel Couplings are used primarily in applications Continue reading “What materials are used in manufacturing Climax rigid couplings?”
Black oxide finish on our steel couplings is formulated as part of the total performance of the coupling. The black oxide affects the anti-stick-slip characteristics and helps keep the torque rating of the screw within its design parameters. The black oxide has corrosion resistant properties for indoor environmental applications. However, black oxide Continue reading “What finishes does Climax offer on rigid couplings?”
A cross-cut is a lateral cut made halfway through the coupling. It is added to our one-piece and two-piece clamping couplings only. Similar to a relief cut, the cross-cut allows more tolerance for slightly misaligned or different size shafts. The cross-cut will help the rigid coupling clamp more securely and transmit power more efficiently even with these slight variations.
Shaft tolerance is the amount of allowable difference between the size of collar or coupling and the size of the shaft that will still allow the component to function. Ideally, a ¾” collar will be used on a ¾” inch nominal shaft. The closer to nominal the better – if the difference is too great, the collar may not even clamp. A difference of even ½ millimeter is quite high. Climax bore tolerances can be found in our catalog and online.
This is a very commonly asked question, and it depends on each individual application. For a collar, the key figure is the axial load of the collar, and for a coupling it is how much torque it can transmit. Consult our technical data sheet for typical maximum values for axial load and torque data. Please note the data presented are based on limited test results and are not a guarantee of minimum or maximum values under all conditions. These values are only a guide, and must be evaluated by customers based on individual application.
Climax shaft collars and couplings can be used in applications over a wide range of operating temperatures. The table below lists these ambient operating temperature ranges for our shaft collars and rigid couplings based on material.
| MATERIAL | AMBIENT OPERATING MIN (°F) | AMBIENT OPERATING MAX (°F) |
| STEEL – High Strength, Low Carbon Steel | -40 | 350 |
| STAINLESS STEEL – Type 303 / Type 316 | -40 | 350 |
| ALUMINUM – Type 6061 – T651 or equivalent | -40 | 225 |
| ACETAL – Delrin | -10 | 185 |
Note that the numbers listed in the table are ambient temperatures and are not applicable when the part is directly exposed to a heat source. These values are ‘typical’ operating temperature ranges and are not a guarantee under all conditions. They are meant to be a guide and must be evaluated by the customer based on individual application. For applications where the shaft collar and/or rigid coupling would be subjected to temperatures outside the ambient operating temperature range presented above, please contact a Climax applications engineer.
