For OD For OD |
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For Groove Diameter For Groove Diameter |
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Retaining Ring Style Retaining Ring Style |
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 | Standard |
Retaining Ring Type Retaining Ring Type |
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 | External |
Material Material |
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Finish Finish |
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Ring ID Ring ID |
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Minimum Hardness Minimum Hardness |
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Thrust Load Capacity Thrust Load Capacity |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Magnetic Properties Magnetic Properties |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Inverted External Retaining Rings
For a smooth profile and better clearance than standard external retaining rings, the lugs on these rings point inward. Open them with retaining ring pliers (sold separately), pass them over the end of a shaft, and release to spring into the groove. Ring ID is measured with the ring uninstalled. The black-phosphate finish is mildly corrosion resistant in dry environments.
Thrust load capacity, also known as PR, is based on using a shaft that is harder than the ring.
Metric rings meet DIN 471 specifications for retaining ring grooves.
For technical drawings and 3-D models, click on a part number.
Inch
For Groove | Ring | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For OD | Dia. | Wd. | ID | Thick. | Min. Hardness | Thrust Load Capacity, lbs. | Magnetic Properties | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Phosphate 1060-1090 Spring Steel | |||||||||||
| 1/2" | 0.468" | 0.039" | 0.461" | 0.035" | Rockwell C47 | 1,110 | Magnetic | ASME B18.27.4 | 50 | 000000000 | 00000 |
| 5/8" | 0.588" | 0.039" | 0.579" | 0.035" | Rockwell C47 | 1,420 | Magnetic | ASME B18.27.4 | 50 | 000000000 | 0000 |
| 3/4" | 0.704" | 0.046" | 0.693" | 0.042" | Rockwell C47 | 2,530 | Magnetic | ASME B18.27.4 | 50 | 000000000 | 00000 |
| 7/8" | 0.821" | 0.046" | 0.81" | 0.042" | Rockwell C47 | 2,890 | Magnetic | ASME B18.27.4 | 50 | 000000000 | 00000 |
| 1" | 0.94" | 0.046" | 0.925" | 0.042" | Rockwell C47 | 3,350 | Magnetic | ASME B18.27.4 | 50 | 000000000 | 00000 |
| 1 1/16" | 0.998" | 0.056" | 0.982" | 0.05" | Rockwell C47 | 4,210 | Magnetic | ASME B18.27.4 | 25 | 000000000 | 0000 |
| 1 1/8" | 1.059" | 0.056" | 1.041" | 0.05" | Rockwell C47 | 4,460 | Magnetic | ASME B18.27.4 | 25 | 000000000 | 0000 |
| 1 3/16" | 1.118" | 0.056" | 1.098" | 0.05" | Rockwell C47 | 4,720 | Magnetic | ASME B18.27.4 | 25 | 000000000 | 00000 |
| 1 1/4" | 1.176" | 0.056" | 1.156" | 0.05" | Rockwell C47 | 4,970 | Magnetic | ASME B18.27.4 | 25 | 000000000 | 00000 |
| 1 5/16" | 1.232" | 0.056" | 1.214" | 0.05" | Rockwell C47 | 5,220 | Magnetic | ASME B18.27.4 | 25 | 000000000 | 00000 |
| 1 3/8" | 1.291" | 0.056" | 1.272" | 0.05" | Rockwell C47 | 5,480 | Magnetic | ASME B18.27.4 | 25 | 000000000 | 00000 |
| 1 7/16" | 1.35" | 0.056" | 1.333" | 0.05" | Rockwell C47 | 5,730 | Magnetic | ASME B18.27.4 | 25 | 000000000 | 00000 |
| 1 1/2" | 1.406" | 0.056" | 1.387" | 0.05" | Rockwell C47 | 5,930 | Magnetic | ASME B18.27.4 | 10 | 000000000 | 0000 |
| 1 9/16" | 1.468" | 0.068" | 1.446" | 0.062" | Rockwell C47 | 7,710 | Magnetic | ASME B18.27.4 | 10 | 000000000 | 0000 |
| 1 5/8" | 1.529" | 0.068" | 1.503" | 0.062" | Rockwell C47 | 8,010 | Magnetic | ASME B18.27.4 | 10 | 000000000 | 0000 |
| 1 25/32" | 1.669" | 0.068" | 1.637" | 0.062" | Rockwell C47 | 8,620 | Magnetic | ASME B18.27.4 | 10 | 000000000 | 0000 |
| 1 13/16" | 1.708" | 0.068" | 1.675" | 0.062" | Rockwell C47 | 8,980 | Magnetic | ASME B18.27.4 | 10 | 000000000 | 0000 |
| 1 31/32" | 1.857" | 0.068" | 1.819" | 0.062" | Rockwell C47 | 9,690 | Magnetic | ASME B18.27.4 | 10 | 000000000 | 0000 |
| 2" | 1.886" | 0.068" | 1.85" | 0.062" | Rockwell C47 | 9,890 | Magnetic | ASME B18.27.4 | 5 | 000000000 | 0000 |
| 2 1/2" | 2.36" | 0.086" | 2.313" | 0.078" | Rockwell C47 | 15,500 | Magnetic | ASME B18.27.4 | 1 | 000000000 | 0000 |
| 3 1/2" | 3.316" | 0.12" | 3.237" | 0.109" | Rockwell C45 | 30,300 | Magnetic | ASME B18.27.4 | 1 | 000000000 | 0000 |
| 4" | 3.792" | 0.12" | 3.7" | 0.109" | Rockwell C45 | 34,200 | Magnetic | ASME B18.27.4 | 1 | 000000000 | 0000 |
Metric
For Groove | Ring | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For OD, mm | Dia., mm | Wd., mm | ID, mm | Thick., mm | Min. Hardness | Thrust Load Capacity, lbs. | Magnetic Properties | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Phosphate 1060 Carbon Steel | |||||||||||
| 12 | 11.5 | 1.1 | 11 | 1 | Rockwell C47 | 1,010 | Magnetic | DIN 471 | 50 | 000000000 | 000000 |
| 13 | 12.4 | 1.1 | 11.9 | 1 | Rockwell C47 | 1,230 | Magnetic | DIN 471 | 50 | 000000000 | 00000 |
| 14 | 13.4 | 1.1 | 12.9 | 1 | Rockwell C47 | 1,340 | Magnetic | DIN 471 | 50 | 000000000 | 00000 |
| 15 | 14.3 | 1.1 | 13.8 | 1 | Rockwell C47 | 1,460 | Magnetic | DIN 471 | 50 | 000000000 | 00000 |
| 16 | 15.2 | 1.1 | 14.7 | 1 | Rockwell C47 | 1,570 | Magnetic | DIN 471 | 25 | 000000000 | 0000 |
| 17 | 16.2 | 1.1 | 15.7 | 1 | Rockwell C47 | 1,820 | Magnetic | DIN 471 | 25 | 000000000 | 0000 |
| 18 | 17 | 1.3 | 16.5 | 1.2 | Rockwell C47 | 3,320 | Magnetic | DIN 471 | 25 | 000000000 | 00000 |
| 20 | 19 | 1.3 | 18.5 | 1.2 | Rockwell C47 | 3,280 | Magnetic | DIN 471 | 25 | 000000000 | 00000 |
| 22 | 21 | 1.3 | 20.5 | 1.2 | Rockwell C47 | 3,190 | Magnetic | DIN 471 | 10 | 000000000 | 0000 |
| 23 | 22 | 1.3 | 21.5 | 1.2 | Rockwell C47 | 3,140 | Magnetic | DIN 471 | 10 | 000000000 | 0000 |
| 24 | 22.9 | 1.3 | 22.2 | 1.2 | Rockwell C47 | 3,140 | Magnetic | DIN 471 | 10 | 000000000 | 0000 |
| 25 | 23.9 | 1.3 | 23.2 | 1.2 | Rockwell C47 | 3,160 | Magnetic | DIN 471 | 10 | 000000000 | 0000 |
| 26 | 24.9 | 1.3 | 24.2 | 1.2 | Rockwell C47 | 3,160 | Magnetic | DIN 471 | 10 | 000000000 | 0000 |
| 30 | 28.6 | 1.6 | 27.9 | 1.5 | Rockwell C47 | 6,180 | Magnetic | DIN 471 | 10 | 000000000 | 00000 |
| 32 | 30.3 | 1.6 | 29.6 | 1.5 | Rockwell C47 | 6,060 | Magnetic | DIN 471 | 10 | 000000000 | 00000 |
| 35 | 33 | 1.6 | 32.2 | 1.5 | Rockwell C47 | 5,970 | Magnetic | DIN 471 | 10 | 000000000 | 00000 |
| 38 | 35.8 | 1.85 | 34.5 | 1.75 | Rockwell C47 | 9,440 | Magnetic | DIN 471 | 10 | 000000000 | 00000 |