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NA Series

Features of this series

Main dimensions according to DIN 626-1. For high radial and low axial loads. Fixing of the inner ring onto a shaft possible. Good compensation of misalignment in case of the use in corresponding housings.

Versions of radial insert ball bearings

Extended inner ring with grub screws

Fixing of the inner ring onto the shaft by grub screws. Suitable for both directions of rotation in case of moderate loads.

Eccentric collar

Fixing by eccentric collar and grub screws onto the shaft. Also suitable for higher speeds at constant direction of rotation.

Conical bore

Fixing through adapter sleeves onto the shaft makes possible high speeds, changes of direction of rotation and quiet running.

Material description of radial insert ball bearings

Radial insert ball bearings made of rolling bearing steel

are economical, withstand extremely high load-ratings and are suitable for temperatures from circa -10°C up to +120°C, in case of plastic seals up to circa +100°C in the long run. The rolling bearing steel is wear-resistant, shock-resistant, conductive and magnetic.

Radial insert ball bearings made of stainless steel

are hygienic, corrosion-resistant, offer high load-ratings and are admissible for a temperature range from circa -20°C up to +125°C.



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SelectInquiryBearing No.d Dimensions(mm)Basic Load Rating (kN)
(mm)(in.)DBeBiB1nKHGdsDynamicStatic
NA203 17 40 14 37.3 27.8 13.9 28.6 13.5 5 M6x1 900 500
NA203-11 17.463 11/16 40 14 37.3 27.8 13.9 28.6 13.5 5 1/4-28UNF 900 500
NA204-12 19.05 3/4 47 17 43.7 34.2 17.1 33.3 13.5 5 1/4-28UNF 1250 650
NA204 20 47 17 43.7 34.2 17.1 33.3 13.5 5 M6x1 1250 650
NA205-14 22.225 7/8 52 17 44.4 35 17.5 38.1 13.5 5 1/4-28UNF 1400 750
NA205-15 23.813 15/16 52 17 44.4 35 17.5 38.1 13.5 5 1/4-28UNF 1400 750
NA205 25 52 17 44.4 35 17.5 38.1 13.5 5 M6x1 1400 750
NA205-16 25.4 1 52 17 44.4 35 17.5 38.1 13.5 5 1/4-28UNF 1400 750
NA206-18 28.575 1 1/8 62 19 48.4 36.6 18.3 44.5 15.9 6 5/16-24UNF 1900 1100
NA206 30 62 19 48.4 36.6 18.3 44.5 15.9 6 M8x1 1900 1100
NA206-19 30.163 1 3/16 62 19 48.4 36.6 18.3 44.5 15.9 6 5/16-24UNF 1900 1100
NA206-20 31.75 1 1/4 62 19 48.4 36.6 18.3 44.5 15.9 6 5/16-24UNF 1900 1100
NA207-20 31.75 1 1/4 72 20 51.1 37.6 18.8 55.6 17.5 6.5 5/16-24UNF 2550 1500
NA207-22 34.925 1 3/8 72 20 51.1 37.6 18.8 55.6 17.5 6.5 5/16-24UNF 2550 1500
NA207 35 72 20 51.1 37.6 18.8 55.6 17.5 6.5 M8x1 2550 1500
NA207-23 36.513 1 7/16 72 20 51.1 37.6 18.8 55.6 17.5 6.5 5/16-24UNF 2550 1500
NA208-24 38.1 1 1/2 80 21 56.3 42.8 21.4 60.3 18.3 6.5 5/16-24UNF 2950 1800
NA208-25 39.688 1 9/16 80 21 56.3 42.8 21.4 60.3 18.3 6.5 5/16-24UNF 2950 1800
NA208 40 80 21 56.3 42.8 21.4 60.3 18.3 6.5 M8x1 2950 1800
NA209-26 41.275 1 5/8 85 22 56.3 42.8 21.4 63.5 18.3 6.5 5/16-24UNF 3180 2050
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