DIN 472 internal circlip (for bores)
DIN 472 is the standard for retaining rings for bores, also called internal circlips or bore snap rings. The ring is compressed with pliers, inserted into the bore and expands into an internal groove, forming a shoulder that holds bearings, bushings, pistons and covers inside the housing.
ApplicationBores and housings (internal fitting)
FittingAxial, through the bore opening, with bore pliers (DIN 5256)
VersionsStandard (J series) and heavy (JS series)
GrooveDiameter d2 and width m set by the standard for each d1
Standard materialHeat-treated spring steel
Shaft equivalentDIN 471 (external ring)
Lines conforming to DIN 472
Click a line to see the size table, or download the PDF datasheet.
Also compatible with the DIN 472 groove
Lines with their own geometry that fit the same DIN 472 groove. They are alternatives when the design calls for less radial space, 360° support, axial play compensation or stainless steel.
How to specify
- Bore diameter (d1). This is the nominal size of the ring. Measure the bore, not the loose ring: the free diameter of the ring is larger than the nominal size.
- Version. The standard version covers most applications. The heavy version (JS) is for higher axial loads.
- Material. Spring steel as standard; stainless steel for corrosive environments, on request.
- Load. Check the permissible axial load of the ring and the groove in the datasheet.
Other standards
Each standard has a page explaining it and listing the Anelbras lines that meet it.
DIN 471external ring (shaft)View standard page →DIN 472internal ring (bore)View standard page →DIN 5417bearing snap ringView standard page →DIN 6799radial fitting (E-clip)View standard page →DIN 983 / 984rings with lugs (type K)View standard page →DIN 988shim and support washersView standard page →DIN 9925round wire, shaft (replaces DIN 7993 A)View standard page →DIN 9926round wire, bore (replaces DIN 7993 B)View standard page →