Circlips and Retaining Rings

Product Order Line:
01527 521000

Credit Cards Accepted

Circlips and Retaining Rings Index

Standard Internal Circlips: American Specification N1300

Photo of standard external circlip Standard Internal Circlips American Specification

The most common form of axially fitted circlips for bores with grooves.

The circlip has a large free diameter and gap width, consequently it fits more tightly into the groove and provides higher and more uniform thrust load capacity. Lugs with holes are provided for rapid fitting or removal with circlip pliers.

Standard material: Carbon Spring Steel - Standard Finish: Phosphate and Oil.
(Standard circlips are also available in Stainless Steel)

Please prefix all code numbers with N1300/Measurements in inches & lb.f
Key to table headings and abbreviations
Shaft Circlip Dimensions Groove Dimensions Code
No.
N1300/
frac dec t Tol D Tol Cs b L h Fr
lb.f
G Tol W Tol n Fr
lb.f
1/4 .250 .015 +.002
-.002
.280 +.010
-.005
0.11 .025 .068 .029 530 .268 +.001
-.001
.018 +.002
-.000
.027 130 0025
5/16 .312 .015 .346 0.17 .033 .069 .029 660 .330 .018 .027 160 0031
3/8 .375 .025 .415 0.20 .040 .085 .039 1320 .397 +.002
-.002
.029 +.003
-.000
.033 235 0037
7/16 .438 .025 .482 0.23 .049 .101 .039 1550 .461 .029 .036 285 0043
29/64 .453 .025 .498 0.25 .050 .101 .045 1600 .471 .029 .036 310 0045
1/2 .500 .035 .548 0.26 .053 .117 .045 2470 .530 .039 .045 425 0050
9/16 .562 .035 .620 0.28 .053 .137 .045 2780 .596 .039 .051 540 0058
5/8 .625 .035 .694 0.35 .060 .137 .060 3090 .665 .039 .060 705 0062
11/16 .688 .035 .763 0.41 .063 .137 .060 3400 .732 .039 .066 855 0068
3/4 .750 .035 .831 0.45 .070 .147 .060 3710 .796 .039 .069 975 0075
13/16 .812 .042 .901 +.015
-.010
0.49 .077 .160 .060 4820 .862 +.003
-.003
.046 .075 1150 0081
7/8 .875 .042 .971 0.55 .084 .160 .060 5190 .920 .046 .084 1390 0087
15/16 .938 .042 1.041 0.61 .091 .160 .060 5570 1.000 .046 .093 1640 0093
1 1.000 .042 1.111 0.68 .104 .160 .060 5940 1.066 .046 .099 1870 0100
1 1/16 1.062 .050 1.180 +.025
-.020
0.69 .110 .185 .076 7500 1.130 +.004
-.004
.056 +.004
-.000
.102 2040 0106
1 1/8 1.125 .050 1.249 0.75 .116 .185 .076 7950 1.197 .056 .108 2290 0112
1 3/16 1.188 .050 1.319 0.81 .120 .185 .076 8400 1.262 .056 .111 2490 0118
1 1/4 1.250 .050 1.388 0.88 .124 .185 .076 8850 1.330 .056 .120 2830 0125
1 5/16 1.312 .050 1.456 0.94 .130 .185 .076 9300 1.396 .056 .126 3120 0131
1 3/8 1.375 .050 1.526 1.00 .130 .185 .076 9700 1.461 .056 .129 3340 0137
1 7/16 1.438 .050 1.593 1.06 .133 .185 .076 10200 1.528 .056 .135 3660 0143
1 1/2 1.500 .050 1.660 1.13 .133 .185 .076 10600 1.594 .056 .141 3990 0150
1 9/16 1.562 .062 +.003
-.003
1.734 +.035
-.025
1.15 .160 .205 .076 11400 1.658 +.005
-.005
.068 .144 4240 0156
1 5/8 1.625 .062 1.804 1.21 .160 .205 .076 11800 1.725 .068 .150 4590 0162
1 11/16 1.688 .062 1.874 1.27 .170 .205 .076 12300 1.792 .068 .156 4960 0168
1 3/4 1.750 .062 1.942 1.34 .175 .205 .076 12800 1.858 .068 .162 5340 0175
1 13/16 1.812 .062 2.012 1.40 .170 .205 .091 13200 1.922 .068 .165 5630 0181
1 7/8 1.875 .062 2.072 1.48 .170 .205 .091 13700 1.989 .068 .171 6040 0187
1 15/16 1.938 .062 2.141 1.52 .165 .205 .091 14100 2.056 .068 .177 6470 0193
2 2.000 .062 2.210 1.59 .170 .205 .091 14600 2.122 .068 .183 6900 0200
2 1/16 2.062 .078 2.280 +.040
-.030
1.61 .186 .225 .091 18900 2.186 +.006
-.006
.086 +.005
-.000
.186 7230 0206
2 1/8 2.125 .078 2.350 1.65 .195 .236 .091 19500 2.251 .086 .189 7570 0212
2 3/16 2.188 .078 2.415 1.71 .199 .236 .091 20000 2.318 .086 .195 8040 0218
2 1/4 2.250 .078 2.490 1.77 .203 .236 .091 20600 2.382 .086 .198 8400 0225
2 5/16 2.312 .078 2.560 1.84 .205 .236 .091 21200 2.450 .086 .207 9020 0231
2 3/8 2.375 .078 2.630 1.90 .207 .236 .091 21700 2.517 .086 .213 9540 0237
2 7/16 2.440 .078 2.702 1.96 .205 .236 .108 22300 2.584 .086 .216 10100 0244
2 1/2 2.500 .078 2.775 2.02 .210 .236 .108 22900 2.684 .086 .222 13000 0250
2 9/16 2.562 .093 2.844 2.02 .222 .268 .108 28000 2.714 .103 .228 11000 0256
2 5/8 2.625 .093 2.910 2.08 .226 .268 .108 28600 2.781 .103 .234 11600 0262
2 11/16 2.688 .093 2.980 2.15 .236 .268 .108 29300 2.848 .103 .240 12200 0268
2 3/4 2.750 .093 3.050 2.18 .234 .284 .108 30000 2.914 .103 .246 12800 0275
2 13/16 2.812 .093 3.121 2.24 .230 .284 .108 30800 2.980 .103 .252 13400 0281
2 7/8 2.875 .093 3.191 2.30 .240 .284 .108 31500 3.051 .103 .264 14300 0287
3 3.000 .093 3.325 2.43 .250 .284 .108 32900 3.182 .103 .273 15400 0300
3 1/16 3.062 .109 3.418 +.055
-0.55
2.46 .254 .299 .123 39300 3.248 .120 .279 16100 0306
3 1/8 3.125 .109 3.488 2.52 .260 .299 .123 40100 3.315 .120 .285 16800 0312
3 1/4 3.250 .109 3.623 2.65 .269 .299 .123 41700 3.446 .120 .294 18000 0325
3 11/32 3.346 .109 3.734 2.69 .276 .323 .123 43000 3.546 .120 .300 18900 0334
3 15/32 3.469 .109 3.857 2.77 .294 .350 .123 44500 3.675 .120 .309 20200 0347
3 1/2 3.500 .109 3.890 2.80 .294 .350 .123 44900 3.710 .120 .315 20800 0350
3 5/8 3.625 .109 4.024 2.92 .298 .350 .123 46500 3.841 .120 .324 22100 0362
3 3/4 3.750 .109 4.157 +.065
-0.65
3.04 .309 .350 .123 48200 3.974 .120 .336 23700 0375
3 7/8 3.875 .109 4.291 3.17 .312 .350 .123 49800 4.107 .120 .348 25400 0387
3 15/16 3.938 .109 4.358 3.23 .319 .350 .123 50600 4.174 .120 .354 26300 0393
4 4.000 .109 4.424 3.24 .330 .378 .123 51400 4.240 .120 .360 27100 0400

Circlips and Retaining Rings Index | Contact Springmasters with your specifications.