Retaining Ring Style Retaining Ring Style | Show |
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![]() | Constant Section |
Retaining Ring Style Retaining Ring Style | Hide |
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Standard | Side Mount |
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Push On | Spiral |
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Clip On | Constant Section |
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Crimp On |
For Groove Diameter For Groove Diameter |
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For OD For OD |
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Retaining Ring Type Retaining Ring Type |
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![]() | External |
Ring ID Ring ID |
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For Groove Width For Groove Width |
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Ring Thickness Ring Thickness |
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Material Material |
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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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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Magnetic Properties Magnetic Properties |
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Finish Finish |
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Minimum Hardness Minimum Hardness |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Speared Ends External Retaining Rings

Often used with small engines, heavy equipment, and power transmission, these external retaining rings have speared ends to help you install and remove them. They’re constant-section style, which means the distance between their inside and outside diameter is consistent, so the clearance around their circumference doesn’t change either. All are made of spring steel for good strength and reliability. To resist corrosion in dry environments, they’re oil coated.
For technical drawings and 3-D models, click on a part number.
For Groove | Ring | |||||||||
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For OD | Diameter | Width | ID | Thickness | Minimum Hardness | Thrust Load Capacity, lbs. | Magnetic Properties | Pkg. Qty. | Pkg. | |
Oil-Coated 1060-1090 Spring Steel | ||||||||||
5/16" | 0.29" | 0.028" | 0.281" | 0.025" | Rockwell C42 | 180 | Magnetic | 10 | 000000000 | 00000 |
3/8" | 0.351" | 0.028" | 0.341" | 0.025" | Rockwell C42 | 230 | Magnetic | 10 | 000000000 | 0000 |
7/16" | 0.412" | 0.028" | 0.402" | 0.025" | Rockwell C42 | 300 | Magnetic | 10 | 000000000 | 0000 |
1/2" | 0.474" | 0.039" | 0.464" | 0.035" | Rockwell C42 | 460 | Magnetic | 10 | 000000000 | 0000 |
5/8" | 0.597" | 0.039" | 0.586" | 0.035" | Rockwell C42 | 520 | Magnetic | 10 | 000000000 | 0000 |
3/4" | 0.716" | 0.046" | 0.703" | 0.042" | Rockwell C42 | 820 | Magnetic | 10 | 000000000 | 0000 |
7/8" | 0.835" | 0.046" | 0.82" | 0.042" | Rockwell C42 | 1,110 | Magnetic | 10 | 000000000 | 0000 |
1" | 0.956" | 0.046" | 0.941" | 0.042" | Rockwell C42 | 1,200 | Magnetic | 10 | 000000000 | 0000 |
1 1/8" | 1.075" | 0.056" | 1.06" | 0.05" | Rockwell C42 | 1,880 | Magnetic | 10 | 000000000 | 0000 |
1 1/4" | 1.194" | 0.056" | 1.179" | 0.05" | Rockwell C42 | 2,090 | Magnetic | 10 | 000000000 | 0000 |
1 3/8" | 1.309" | 0.056" | 1.291" | 0.05" | Rockwell C42 | 2,300 | Magnetic | 10 | 000000000 | 0000 |
1 1/2" | 1.43" | 0.056" | 1.408" | 0.05" | Rockwell C42 | 2,500 | Magnetic | 10 | 000000000 | 0000 |
1 5/8" | 1.551" | 0.068" | 1.527" | 0.062" | Rockwell C42 | 3,190 | Magnetic | 10 | 000000000 | 0000 |
1 3/4" | 1.67" | 0.068" | 1.64" | 0.062" | Rockwell C42 | 3,510 | Magnetic | 5 | 000000000 | 0000 |
1 7/8" | 1.789" | 0.068" | 1.759" | 0.062" | Rockwell C42 | 3,760 | Magnetic | 5 | 000000000 | 0000 |
2" | 1.91" | 0.068" | 1.88" | 0.062" | Rockwell C42 | 4,010 | Magnetic | 5 | 000000000 | 0000 |
2 1/8" | 2.027" | 0.086" | 1.997" | 0.078" | Rockwell C42 | 5,470 | Magnetic | 5 | 000000000 | 0000 |
2 1/4" | 2.146" | 0.086" | 2.116" | 0.078" | Rockwell C42 | 5,790 | Magnetic | 5 | 000000000 | 0000 |
2 3/8" | 2.265" | 0.086" | 2.235" | 0.078" | Rockwell C42 | 6,400 | Magnetic | 5 | 000000000 | 00000 |
2 1/2" | 2.386" | 0.086" | 2.356" | 0.078" | Rockwell C42 | 6,600 | Magnetic | 5 | 000000000 | 00000 |
2 5/8" | 2.505" | 0.086" | 2.475" | 0.078" | Rockwell C42 | 6,800 | Magnetic | 5 | 000000000 | 00000 |
2 3/4" | 2.624" | 0.103" | 2.594" | 0.093" | Rockwell C42 | 8,460 | Magnetic | 5 | 000000000 | 00000 |
2 7/8" | 2.743" | 0.103" | 2.713" | 0.093" | Rockwell C42 | 8,840 | Magnetic | 5 | 000000000 | 00000 |
3" | 2.86" | 0.103" | 2.83" | 0.093" | Rockwell C42 | 9,230 | Magnetic | 5 | 000000000 | 00000 |
For Groove | Ring | |||||||||
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For OD, mm | Diameter, mm | Width, mm | ID, mm | Thickness, mm | Minimum Hardness | Thrust Load Capacity, lbs. | Magnetic Properties | Pkg. Qty. | Pkg. | |
Oil-Coated 1060-1090 Spring Steel | ||||||||||
12 | 11.1 | 1.17 | 10.69 | 1.07 | Rockwell C42 | 250 | Magnetic | 10 | 000000000 | 00000 |
15 | 14 | 1.35 | 13.67 | 1.19 | Rockwell C42 | 440 | Magnetic | 10 | 000000000 | 0000 |
17 | 16 | 1.35 | 15.65 | 1.19 | Rockwell C42 | 520 | Magnetic | 10 | 000000000 | 0000 |
20 | 18.6 | 1.73 | 18.03 | 1.57 | Rockwell C42 | 820 | Magnetic | 10 | 000000000 | 0000 |
25 | 23.5 | 1.73 | 23.11 | 1.57 | Rockwell C42 | 1,440 | Magnetic | 10 | 000000000 | 0000 |
30 | 28.2 | 2.16 | 27.76 | 1.91 | Rockwell C42 | 1,880 | Magnetic | 10 | 000000000 | 0000 |
35 | 32.7 | 2.74 | 32.13 | 2.36 | Rockwell C42 | 2,250 | Magnetic | 10 | 000000000 | 00000 |
40 | 37.2 | 2.74 | 36.88 | 2.36 | Rockwell C42 | 2,710 | Magnetic | 10 | 000000000 | 00000 |
45 | 41.9 | 2.74 | 41.28 | 2.36 | Rockwell C42 | 3,550 | Magnetic | 10 | 000000000 | 00000 |
50 | 46.8 | 2.74 | 46.23 | 2.36 | Rockwell C42 | 3,880 | Magnetic | 5 | 000000000 | 0000 |
55 | 51.2 | 3.05 | 50.67 | 2.77 | Rockwell C42 | 6,000 | Magnetic | 5 | 000000000 | 00000 |
60 | 56.2 | 3.05 | 55.55 | 2.77 | Rockwell C42 | 6,300 | Magnetic | 5 | 000000000 | 00000 |
70 | 65.7 | 3.53 | 64.92 | 3.18 | Rockwell C42 | 8,460 | Magnetic | 1 | 000000000 | 0000 |
75 | 70.7 | 3.53 | 69.85 | 3.18 | Rockwell C42 | 9,030 | Magnetic | 1 | 000000000 | 0000 |
85 | 80.7 | 3.53 | 79.73 | 3.18 | Rockwell C42 | 10,180 | Magnetic | 1 | 000000000 | 0000 |
90 | 84.9 | 3.53 | 84.02 | 3.18 | Rockwell C42 | 11,980 | Magnetic | 1 | 000000000 | 00000 |
105 | 99.9 | 4.42 | 98.76 | 3.96 | Rockwell C42 | 14,110 | Magnetic | 1 | 000000000 | 00000 |
110 | 104.9 | 4.42 | 103.63 | 3.96 | Rockwell C42 | 15,000 | Magnetic | 1 | 000000000 | 00000 |
Low-Clearance External Retaining Rings

Also known as constant-section rings, these rings have open ends and a profile that does not taper like other external retaining rings. Use them with linear bearings on support rail shafts. Open rings with flat-tip retaining ring pliers (sold separately), pass them over the end of a shaft, and release to spring into the groove. The black-phosphate finish is mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
For Groove | Ring | ||||||
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For OD | Dia. | Wd. | OD | Thick. | Magnetic Properties | Each | |
Black-Phosphate Steel | |||||||
1/2" | 0.474" | 0.039" | 0.55" | 0.035" | Magnetic | 0000000 | 00000 |
5/8" | 0.596" | 0.039" | 0.673" | 0.035" | Magnetic | 0000000 | 000 |
7/8" | 0.82" | 0.046" | 0.923" | 0.042" | Magnetic | 0000000 | 000 |
1 1/8" | 1.07" | 0.056" | 1.18" | 0.05" | Magnetic | 0000000 | 0000 |
1 1/4" | 1.178" | 0.056" | 1.301" | 0.05" | Magnetic | 0000000 | 0000 |
1 9/16" | 1.47" | 0.068" | 1.62" | 0.062" | Magnetic | 0000000 | 0000 |
2" | 1.89" | 0.068" | 2.04" | 0.062" | Magnetic | 0000000 | 0000 |
2 3/8" | 2.245" | 0.086" | 2.448" | 0.078" | Magnetic | 0000000 | 0000 |
8 1/2" Lg. Steel Flat-Tip Retaining Ring Pliers | 0000000 | Each | 000000 |