KA-CP0 Series Thin Section Bearing

KA series Interchange (inch/mm) Dimension Basic Cap. Weight
Bearings Type NTN KAYDON d D L1 L2 Cor Cr Kg
KA020CP0 KRA020 KA020CP0 2 2.5 2.186 2.134 3020 1420 0.048
50.8 63.5 55.5 58.8
KA025CP0 KRA025 KA025CP0 2.5 3 2.686 2.814 3690 1600 0.059
63.5 76.2 68.2 71.5
KA030CP0 KRA030 KA030CP0 3 3.5 3.186 3.314 4400 1820 0.068
76.2 88.9 80.9 84.2
KA035CP0 KRA035 KA035CP0 3.5 4 3.686 3.814 5070 2000 0.082
88.9 101.6 93.6 96.9
KA040CP0 KRA040 KA040CP0 4 4.5 4.186 4.314 5730 2130 0.09
101.6 114.3 106.3 109.6
KA042CP0 KRA042 KA042CP0 4.25 4.75 4.436 4.564 6090 2220 0.095
107.95 120.65 112.7 115.9
KA045CP0 KRA045 KA045CP0 4.5 5 4.686 4.814 6400 2310 0.1
114.3 127 119 122.3
KA047CP0 KRA047 KA047CP0 4.75 5.25 4.936 5.064 6760 2400 0.104
120.65 133.35 125.4 128.6
KA050CP0 KRA050 KA050CP0 5 5.5 5.186 5.314 7070 2490 0.109
127 139.7 131.7 135


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.