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）
RNAF182613 18 26 13 9.3 12.7 0.023 NAF (W) borderless type
RNAFW182620 18 26 20 12.8 19.1 0.035 NAF (W) borderless type
RNAF183012 18 30 12 11.8 13 0.035 NAF (W) borderless type
RNAFW183024 18 30 24 20.2 26.2 0.07 NAF (W) borderless type
RNAF202813 20 28 13 9.6 13.5 0.025 NAF (W) borderless type
RNAFW202826 20 28 26 16.5 27.1 0.05 NAF (W) borderless type
RNAF203212 20 32 12 12.4 14.3 0.037 NAF (W) borderless type
RNAFW203224 20 32 24 21.2 28.6 0.075 NAF (W) borderless type
RNAF223013 22 30 13 10.2 15.2 0.027 NAF (W) borderless type
RNAFW223026 22 30 26 17.6 30.3 0.054 NAF (W) borderless type
RNAF223516 22 35 16 17.6 20.9 0.059 NAF (W) borderless type
RNAFW223532 22 35 32 30.2 41.9 0.117 NAF (W) borderless type
RNAF253517 25 35 17 17.3 26.6 0.051 NAF (W) borderless type
RNAFW253526 25 35 26 22.5 37.2 0.078 NAF (W) borderless type
RNAF253716 25 37 16 19.4 24.5 0.057 NAF (W) borderless type
RNAFW253732 25 37 32 33.2 49 0.114 NAF (W) borderless type
RNAF263913 26 39 13 11.8 19.2 0.06 NAF (W) borderless type
RNAF284016 28 40 16 20.1 26.5 0.063 NAF (W) borderless type
RNAFW284032 28 40 32 34.4 53 0.125 NAF (W) borderless type
RNAF304017 30 40 17 18.6 31.1 0.059 NAF (W) borderless type