Reference illustration — produced to your drawing
Fastener Families
Retaining Rings
Retaining rings are flat circular fasteners that seat in a groove to hold a part on a shaft or inside a bore. External rings grip a shaft, internal rings grip a bore, and E-clips slip onto a grooved shaft from the side.
Used to locate bearings, gears, pins, and shafts in gearboxes, motors, pumps, and general machinery. Buyers are equipment manufacturers, repair shops, and bearing and power-transmission distributors.
Standard
DIN 471 / DIN 472 / ASME B18.27
Size range
3 – 300 mm shaft or bore · 1/8 – 12 in
MOQ
From 50 pcs
Lead time
Samples 5–10 days
What we produce
- External rings to DIN 471 for grooved shafts
- Internal rings to DIN 472 for grooved bores
- E-clips and spiral wound rings for radial assembly
- Carbon steel and stainless steel 304/316
- Plain, phosphate, or black oxide finish
- Metric and inch groove dimensions
Specification notes
- Supplied to match shaft or bore groove diameter and width
- Lug, bow, and spiral wound styles on request
- Packaged or bulk quantities per order
Specifications
Every line below is a starting point, not a limit. Non-standard sizes, special threads and unusual materials are what we do — send the drawing and we confirm what fits.
| Standard | DIN 471 / DIN 472 / ASME B18.27 |
|---|---|
| Size range | 3 – 300 mm shaft or bore · 1/8 – 12 in |
| Threads | Not applicable |
| Head / geometry | Open ring with lug holes for snap-ring pliers; no thread or drive |
| Materials | Stainless steel 301 / 303 / 304 / 304L / 316 / 316L / 410 / 416 / 17-4PH · carbon steel 1045 / 1215 / 12L14 · alloy steel 4130 / 4140 · aluminium 2024 / 5052 / 6061 / 7075 · brass · bronze · copper · titanium |
| Finishes | As machined · black oxide · zinc plating · nickel plating · chrome plating · anodizing · passivation (through our vetted partner network) |
| Precision | ±0.01 mm on features that locate, seal or fit; ISO 2768-m for general dimensions |
| Marking | Head marking, grade marking or your own identification mark per drawing |
| Documents | Material certificate (MTR) with every batch, plus pre-shipment photos before dispatch |
| MOQ | From 50 pieces per type and material · samples from 1 piece |
| Sample lead time | 5–10 days |
| Production lead time | 25–35 days after sample approval |
| Quote | Within 24 hours, with DFM feedback |
Other fastener families we manufacture
See all 179 part types →
Send us the drawing
We reply within 24 hours with DFM feedback, a process route and a price. Samples from 1 piece, production from 50 pieces, shipped from Qidong City, Jiangsu Province, China.
Request a quote