KC-AR0 Series Thin Section Bearing

KC series Interchange （inch/mm） Dimension Basic Cap.N Weight
NTN KAYDON d D L1 L2 L3 Radial AXial
Type Cor Cr Coa Ca Kg
KC040AR0 KYC040 KC040AR0 4 4.75 4.277 4.473 4.554 11340 4270 32720 12310 0.2
101.6 120.65 108.6 113.6 115.7
KC042AR0 KYC042 KC042AR0 4.2 5 4.527 4.723 4.804 12050 4450 34760 12800 0.209
107.95 127 115 120 122
KC045AR0 KYC045 KC045AR0 4.5 5.25 4.777 4.973 5.052 12710 4620 36760 13290 0.222
114.3 133.35 121.3 126.3 128.3
KC047AR0 KYC047 KC047AR0 4.75 5 5.027 5.223 5.302 13420 4760 38760 13780 0.231
120.65 139.7 127.7 132.7 134.7
KC050AR0 KYC050 KC050AR0 5 5.75 5.277 5.473 5.552 14140 4930 40760 14220 0.245
127 146.05 134 139 141
KC055AR0 KYC055 KC055AR0 5.5 6.25 5.777 5.973 6.052 15290 5200 44090 14980 0.263
139.7 158.75 146.7 151.7 153.7
KC060AR0 KYC060 KC060AR0 6 6.75 6.277 6.473 6.55 16670 5510 48100 15910 0.29
152.4 171.45 159.4 164.4 166.4
KC065AR0 KYC065 KC065AR0 6.5 7.25 6.777 6.973 7.05 18050 5820 52100 16760 0.308
165.1 184.15 172.1 177.1 179
KC070AR0 KYC070 KC070AR0 7 7.75 7.277 7.473 7.55 19200 6050 55430 17490 0.336
177.8 196.85 184.4 189.8 191.8
KC075AR0 KYC075 KC075AR0 7.5 8.25 7.777 7.973 8.048 20580 6360 59470 18310 0.354
190.5 209.55 197.5 202.5 204.4
KC080AR0 KYC080 KC080AR0 8 8.75 8.277 8.473 8.548 22010 6620 63480 19110 0.381
203.2 222.25 210.2 215.2 217.1
KC090AR0 KYC090 KC090AR0 9 9.75 9.277 9.473 9.546 24540 7110 70810 20580 0.445
228.6 247.65 235.6 240.6 242.5
KC100AR0 KYC100 KC100AR0 10 10.75 10.277 10.473 10.544 27290 7650 78810 22090 0.472
254 273.05 261 266 267.8
KC110AR0 KYC110 KC110AR0 11 11.75 11.277 11.473 11.542 29870 8130 86190 23470 0.517
279.4 298.45 286.4 291.4 293.2
KC120AR0 KYC120 KC120AR0 12 12.75 12.277 12.473 12.54 32400 8580 93520 24800 0.558
304.8 323.85 311.8 316.8 318.5
KC140AR0 KYC140 KC140AR0 14 14.75 14.277 14.473 14.535 37740 9510 108900 27430 0.649
355.6 374.65 362.6 367.6 369.2
KC160AR0 KYC160 KC160AR0 16 16.75 16.277 16.473 16.529 43030 10360 124240 29920 0.739
406.4 425.45 413.4 418.4 419.8
KC180AR0 KYC180 KC180AR0 18 18.75 18.277 18.473 18.523 48360 11200 139620 32360 0.83
457.2 476.25 464.2 469.2 470.5
KC200AR0 KYC200 KC200AR0 20 20.75 20.277 20.473 20.517 53470 11960 154330 34580 0.921
508 527.05 515 520 521.1


First understand the thin-walled bearings of equal section: thin-walled ferrule bearings have high precision, very quiet and strong carrying capacity. These ball bearings are available in three designs and are extremely small and mostly square in cross section. In these series, even with larger shaft diameters and bearing bores, the cross section remains the same. These bearings are therefore referred to as equal sections.
The equal-section thin-wall ball bearing retainer is a precision non-standard thin-walled ball bearing retainer consisting of seven open series and five sealed series, with inner diameters ranging from 1 inch to 40 inches, and cross-section sizes ranging from 0.1875X to 0.1875 inches. To 1.000X 1.000 inches.
Three types: deep groove ball type (C), angular contact type (E), four point contact type (X).
Materials are copper, stainless steel, alloy steel, etc.
The products are mainly used in: robot joint bearings, aerospace high-precision thin-wall bearings and large-scale bearings for wind turbines, etc., which require high-precision and small space.