NAF (W) borderless type

The NAF (W) series is a needle roller bearing with an inner ring and no blocking edge. The inner ring has no axial blocking edge, and the outer ring is designed for adaptability. It is equipped with a cage and needle roller components, and can only withstand pure radial loads. The radial section is extremely compact, and it is suitable for industrial scenarios that require axial displacement and limited radial space. It is widely used for shaft support in textile machinery, conveying equipment, precision transmission, and automation equipment.

Model Basic Dimensions Basic rated dynamic load Weight Type
Inner diameter Outer diameter Thickness Dynamic load Static load
[mm] [mm] [mm] (kN) (kN) （kg）
NAF334713 33 47 13 15.9 27.1 0.085 NAF (W) borderless type
NAF355017 35 50 17 22.2 42.7 0.115 NAF (W) borderless type
NAFW355034 35 50 34 38 85.3 0.23 NAF (W) borderless type
NAF355520 35 55 20 31.5 48 0.188 NAF (W) borderless type
NAFW355540 35 55 40 53.9 96 0.375 NAF (W) borderless type
NAF405517 40 55 17 23.2 47.2 0.129 NAF (W) borderless type
NAFW405534 40 55 34 39.9 94.2 0.255 NAF (W) borderless type
NAF406220 40 62 20 33.2 53.3 0.236 NAF (W) borderless type
NAFW406240 40 62 40 57 106.9 0.475 NAF (W) borderless type
NAF406520 40 65 20 38.5 67.5 0.279 NAF (W) borderless type
NAF456220 45 62 20 27.1 59.3 0.197 NAF (W) borderless type
NAFW456240 45 62 40 46.4 118.7 0.389 NAF (W) borderless type
NAF457220 45 72 20 37.4 66.4 0.34 NAF (W) borderless type
NAFW457240 45 72 40 64.1 132.4 0.685 NAF (W) borderless type
NAF506820 50 68 20 28.5 66 0.23 NAF (W) borderless type
NAFW506840 50 68 40 48.9 132.4 0.465 NAF (W) borderless type
NAF507820 50 78 20 38.9 71.7 0.39 NAF (W) borderless type
NAFW507840 50 78 40 66.7 143.2 0.775 NAF (W) borderless type
NAF558530 55 85 30 59.3 127.5 0.68 NAF (W) borderless type
NAFW558560 55 85 60 102 254 1.38 NAF (W) borderless type