Retaining Ring
Types of Retaining Ring
Snap Rings
Housing Rings
E-Clips
With Lugs Type
Crimp Rings
Spiral Rings
X-Rings
Grip Rings
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Retaining Ring
Guide 1
What is the Retaining Ring?
A retaining ring is a fastener that holds components or assemblies onto a shaft or in a housing/bore when installed-typically in a groove-for one time use only. Once installed, the exposed portion acts as a shoulder which retains the specific component or assembly. Circlips are a type of retaining ring.
Guide 2
Retaining Ring Material
Standard Materials used in the manufacture of the retaining rings shall be carbon spring steel, corrosion-resistant steel, or beryllium cooper.
Carbon Spring Steel
Retaining rings made from carbon spring steel shall conform to the chemical composition of UNS G10600 to UNS G10900 or equivalent.
Heat Treatment
The retaining rings shall be heat treated by austempering up to Size 345. For sizes from 350 to 1000, the rings shall be heat treated by either austempering or by quench and temper.
Guide 3
Retaining Ring Surface Treatment
Phosphate Coating. Finish shall consist of basic zinc phosphate treatment and subsequent supplementary treatment to enhance Shelf Life (example of supplementary treatment: was, light drying oil).
Zinc Plating. Finish shall consist of mechanically applied zinc with a dichromate conversion treatment similar to ASTM B 695 Tyep II, Class 8.
Oil Finish. To extend Shelf Life, rings shall be coated with a thin film of non-tacky water displacing rust preventative oil.
Guide 4
Designation of the Retaining Ring
INCH FASTENERS
Retaining Ring shall be designated by the following data in the sequence shown:
(a) ring series type number
(b) size
(c) material
(d) protective finish (fractional or decimal equivalent)
(e) material, including specification where necessary
(f) protective finish, if required or by, optionally ASME B18.24.3 PIN Code
See the following examples:
EXAMPLES:
NA-137, Carbon Spring Steel, Phosphate
R271NAA0037NN056NNAA1
METRIC FASTENERS
Retaining Ring shall be designated by the following data in the sequence shown:
(a) ring series type number
(b) size
(c) material
(d) protective finish
(e) material, including specification where necessary
(f) protective finish
See the following examples:
EXAMPLES:
(1) Circlip DIN 471 – 40X1.75 – A3K
Guide 5
Inspection of Retaining Ring
Vernier Caliper
Will use vernier calipers to measure the basic dimensions of Retaining Ring.
Vickers Hardness Tester
Will use vickers hardness tester to test the hardness of metric Retaining Ring.
Rockwell Hardness Tester
Will use rockwell hardness tester to test the hardness of inch Retaining Ring.
Coating Thickness Gauge
Will use coating thickness gauge to measuere the thickness of ZP.
Guide 6
Packaging of Retaining Ring
Usual Packaging
Label: black text on white, no pattern and barcode
Carton: standard double corrugated neutral carton, bulking packing, maximum load bearing: 25kg per carton
Pallet: Europe Fumigation Pallet, 36 cartons per pallets, Width 800mm x Length 1200mm
Guide 7
Production Time of Retaining Ring
Flow 01: Need 3 Days – Analyze Customers’ PO and Place Orders to the Factory
Flow 02: Need 10 Days – Purchase the Raw Material
Flow 03: Need 15 Days – Make Production Plan and Wait for Starting Production
Flow 04: Need 15 Days – Formal Mass Production
Flow 05: Need 7 Days – Send Out to Do Heat Treatment (if exist)
Flow 06: Need 7 Days – Send Out to Do Surface Treatment (Finish)
Flow 07: Need 7 Days – Packaging, Make the Shipment
Total Time: 60 Days to 70 Days
Guide 8
Inquiry Required Content
Let us know who you are, and we can contact you in time.
We will give you a more reasonable price.
Let us know your needed product well.
Let us know if the products need to do the heat treatment.
Zinc Electoplated or Hot Dip Galvanized Coating or Zinc Flake Coating…
Our MOQ is about 1 pallet (900KGS) per size.
If it is a customized package, we will send the carton/label to you by courier for confirmation before packaging.
We will make a more suitable production plan for you.
FOB (We usually quote based on FOB ), CIF, FCA
This information is important before mass production. We will adjust the production plan according to your requirement.