What does DIN 471 mean?

DIN 471 – Retaining rings for shafts.

How are circlips sizes?

Circlip Sizes Small circlips are most common and the majority of circlips are less than 50mm (or 2 inches) in diameter. However, it is possible to get large circlips which can go up to 400 or even 500mm in diameter. It is always important to choose the right circlip sizes for the job at hand.

How do I know what size my external circlip is?

The best way to find the external circlip size you need, is to measure the outside diameter of the shaft (not the circlip groove). For example, a 30mm shaft will require a 30mm circlip (keeping in mind that the inside diameter of the circlip will measure less than 30mm as it has not yet expanded).

What is a standard for external circlips?

E Type External Circlip Conforms to BS3673 Part 2 and DIN 6799, the most common form of radially fitted circlip to shafts with grooves. Nominal size is the groove diameter (not the shaft diameter), available in inch sizes from 0.052″ to 0.940″ and 0.8mm to 30.0mm grooves.

How deep should a circlip groove be?

The depth of the groove should be about one third of the width of the ring. For example, if you have 0.24 wide ring then the groove at that point would 0.08. This prevents a lever arm situation where if the groove is too shallowed, the ring could dish out more easily.

Is standard for internal circlip?

Standard Internal Circlips: To DIN 472 Metric The most common form of axially fitted circlips for bores with grooves. 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.

How many types of circlips are there?

two basic
There are two basic types: internal and external, referring to whether they are fitted into a bore or over a shaft. Circlips are often used to secure pinned connections.

How do you remove circlips without pliers?

They can be operated by a hex key, wrench or cordless screwdriver.

How are circlips made?

Such circlips are made by a stamping process by stampling out circlips from sheet metal. A problem with making circlips in this way is the large wastage of material necessarily incurred because the radial thickness of the circlip is small relative to the outer radius of the circlip.

How are internal circlips measured?

Internal Circlips (DIN 472 / D1300) are always measured by the bore size the Circlip is fitting in to. For example if you need a Circlip to fit in to a 40mm bore, you will need to purchase a 40mm Internal Circlip.