KD-AR0 Series Thin Section Bearing

KD series Interchange （inch/mm） Dimension Basic Cap.N Weight
NTN KAYDON d D L1 L2 L3 Radial AXial
Type Cor Cr Coa Ca Kg
KD040AR0 KYD040 KD040AR0 4 5 4.37 4.63 4.741 15780 6580 45610 18940 0.363
101.6 127 111 117.6 120.4
KD042AR0 KYD042 KD042AR0 4.25 5.25 4.62 4.88 4.991 16670 6800 48140 19650 0.381
107.95 133.35 117.3 124 126.8
KD045AR0 KYD045 KD045AR0 4.5 5.5 4.87 5.13 5.241 17560 7020 50670 20310 0.4
114.3 139.7 123.7 130.3 133.1
KD047AR0 KYD047 KD047AR0 4.75 5.75 5.12 5.38 5.49 18450 7290 53210 20980 0.422
120.65 146.05 130 136.7 139.4
KD050AR0 KYD050 KD050AR0 5 6 5.37 5.63 5.74 19290 7510 55740 21650 0.445
127 152.4 136.4 143 145.8
KD055AR0 KYD055 KD055AR0 5.5 6.5 5.87 6.13 6.238 21070 7960 60810 22940 0.481
139.7 165.1 149.1 155.7 158.4
KD060AR0 KYD060 KD060AR0 6 7 6.37 6.63 6.738 22800 8400 65880 24180 0.522
152.4 177.8 161.8 168.4 171.1
KD065AR0 KYD065 KD065AR0 6.5 7.5 6.87 7.13 7.236 24580 8800 70940 25430 0.562
165.1 190.5 174.5 181.1 183.8
KD070AR0 KYD070 KD070AR0 7 8 7.37 7.63 7.736 26310 9200 76010 26630 0.603
177.8 203.2 187.2 193.8 196.5
KD075AR0 KYD075 KD075AR0 7.5 8.5 7.87 8.13 8.236 28090 9650 81080 27780 0.644
190.5 215.9 199.9 206.5 209.2
KD080AR0 KYD080 KD080AR0 8 9 8.37 8.63 8.734 29830 10050 86140 28940 0.689
203.2 228.6 212.6 219.2 221.8
KD090AR0 KYD090 KD090AR0 9 10 9.37 9.63 9.732 33340 10800 96280 31160 0.767
228.6 254 238 244.6 247.2
KD100AR0 KYD100 KD100AR0 10 11 10.37 10.63 10.732 36850 11560 106410 33340 0.848
254 279.4 263.4 270 272.6
KD110AR0 KYD110 KD110AR0 11 12 11.37 11.63 11.73 40360 12270 116550 35380 0.93
279.4 304.8 288.8 295.4 298
KD120AR0 KYD120 KD120AR0 12 13 12.37 12.63 12.728 43870 12980 126680 37430 1.01
304.8 330.2 314.2 320.8 323.2
KD140AR0 KYD140 KD140AR0 14 15 14.37 14.63 14.724 50900 14310 146950 41290 1.17
355.6 381 365 371.6 374
KD160AR0 KYD160 KD160AR0 16 17 16.37 16.63 16.718 57920 15600 167220 45030 1.33
406.4 431.8 415.8 422.4 424.6
KD180AR0 KYD180 KD180AR0 18 19 18.37 18.63 18.712 64940 16850 187490 48580 1.49
457.2 482.6 466.6 473.2 475.3
KD200AR0 KYD200 KD200AR0 20 21 20.37 20.63 20.705 71970 18050 207760 52050 1.66
508 533.4 517.4 524 525.9


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.