What is DIN 471?
Note:DIN 471 circlips are retaining rings mounted in a groove on a shaft OD. They withstand high axial forces between machine elements (e.g. bearings) and the groove in which the ring is mounted.
How do you size a retaining ring?
Clip diameter — Ring size is determined by measuring the clip’s free diameter, or the diameter of the clip prior to installation. Internal retaining rings are measured by their outer diameter, while external rings are measured by their inner diameter.
How much force can a retaining ring hold?
A self-locking retaining ring, which does not need a groove, provides 66 lbs. of static thrust load capacity; an external retaining ring for the same application installed in a soft groove provides 1,200 lbs.
What are retention rings used for?
Retaining rings are used to hold components onto a shaft or into a bore. The smooth, round finish of most shafts or bores makes them difficult to attach to with alternative methods, whereas retaining rings clamp around them and create a shoulder that keeps parts in place.
How do I know what size my external circlip is?
How Do You Measure External Circlip Size? When measuring the size of an external circlip, you should measure the nominal size of the groove diameter. Do not measure the shaft diameter as this will result in an inaccurate measurement when comparing external circlip sizes.
Is standard for internal circlip?
Standard Internal Circlips: To DIN 472 Metric The circlip has a large free diameter and gap width, consequently it fits more tightly into the groove and provides higher and more uniform thrust load capacity. Lugs with holes are provided for rapid fitting or removal with circlip pliers.
What is external retaining ring groove?
External retaining rings (also known as “external snap rings”) sit in the grooves on the exterior of shafts of any size. The areas of the ring that protrude out from the shaft hold it in place. If you do not see a ring that meets your specs, you can custom-design your own external snap ring right on our site!
What can I use instead of a retaining ring?
By far, the most common solution in the absence of a snap ring pliers is a needle nose pliers. Together with other minor tools, this alternative will get the job done. It might not be as effective, but with a little ingenuity, you can still use this tool to snap the ring out.
How do you measure the size of a circlip?
Who uses retaining rings?
Retaining rings are also used in several other applications, such as fitness equipment, wind turbines, bearing retention, bicycles, doorknobs, gas pumps, office equipment, and many others. Retaining rings can be classified into three main categories based on design.