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）
RNAF506220 50 62 20 27.1 59.3 0.139 NAF (W) borderless type
RNAFW506240 50 62 40 46.4 118.7 0.276 NAF (W) borderless type
RNAF506520 50 65 20 35.9 61.1 0.17 NAF (W) borderless type
RNAFW506540 50 65 40 61.5 122.6 0.345 NAF (W) borderless type
RNAF556820 55 68 20 28.5 66 0.167 NAF (W) borderless type
RNAF556825 55 68 25 50.5 97.5 0.2 NAF (W) borderless type
RNAFW556840 55 68 40 48.9 132.4 0.33 NAF (W) borderless type
RNAF557220 55 72 20 37.4 66.4 0.215 NAF (W) borderless type
RNAFW557240 55 72 40 64.1 132.4 0.435 NAF (W) borderless type
RNAFW607546 60 75 46 76 170 0.461 NAF (W) borderless type
RNAF607820 60 78 20 38.9 71.7 0.255 NAF (W) borderless type
RNAFW607840 60 78 40 66.7 143.2 0.51 NAF (W) borderless type
RNAF658530 65 85 30 59.3 127.5 0.465 NAF (W) borderless type
RNAFW658560 65 85 60 102 254 0.95 NAF (W) borderless type
RNAF709030 70 90 30 61.2 135.3 0.5 NAF (W) borderless type
RNAFW709060 70 90 60 104.9 271.6 1 NAF (W) borderless type
RNAF759530 75 95 30 63.2 144.2 0.53 NAF (W) borderless type
RNAFW759560 75 95 60 108.9 289.3 1.05 NAF (W) borderless type
RNAF809530 80 95 30 57 159 0.405 NAF (W) borderless type
RNAFW809556 80 95 56 105 284 0.755 NAF (W) borderless type