Global Shipping · OEM & Custom Bearings Welcome
Home › Size Series › NA series

NA Series Ball Bearing Units — Sizes & Specifications

36 models in the NA series, 15–76.2 mm bore. Every row links to the full specification page and to the cross-reference page of that model.

ModelBrandBore d (mm)OD D (mm)Width B (mm)
NA202ANDGE154037.3—
NA203ANDGE174037.3—
NA204-12ANDGE19.054743.6Cross-ref →
NA204ANDGE204743.6Cross-ref →
NA205-15ANDGE23.8135244.4Cross-ref →
NA205ANDGE255244.3Cross-ref →
NA205-16ANDGE25.45244.4Cross-ref →
NA206-18ANDGE28.5756248.4Cross-ref →
NA206ANDGE306236.4Cross-ref →
NA206-19ANDGE30.1636248.4Cross-ref →
NA206-20ANDGE31.756248.4—
NA206-Series 20ANDGE31.756248.3—
NA207-Series 20ANDGE31.757251.1—
NA207-21ANDGE33.3387251.2Cross-ref →
NA207-22ANDGE34.9257251.2—
NA207-Series 22ANDGE34.9527251.1—
NA207ANDGE357251.2Cross-ref →
NA207-23ANDGE36.5137251.2Cross-ref →
NA208-25ANDGE39.6888056.4Cross-ref →
NA208ANDGE408056.4Cross-ref →
NA209-26ANDGE41.2758556.4Cross-ref →
NA209-27ANDGE42.8638556.4Cross-ref →
NA209-28ANDGE44.458556.4Cross-ref →
NA209ANDGE458542.8Cross-ref →
NA210-30ANDGE47.6259062.7Cross-ref →
NA210-31ANDGE49.2139062.7Cross-ref →
NA210ANDGE509062.7Cross-ref →
NA211-32ANDGE50.810071.4Cross-ref →
NA211ANDGE5510071.4Cross-ref →
NA212-36ANDGE57.1511077.8Cross-ref →
NA212ANDGE6011077.8Cross-ref →
NA212-39ANDGE61.91311077.8Cross-ref →
NA213-43ANDGE68.26212085.7—
NA214ANDGE7012585.7—
NA215ANDGE7513075Cross-ref →
NA215-48ANDGE76.213092.1—

About the NA series

NA series bearings follow the ISO dimension plan for this family, so a given number is dimensionally interchangeable between brands - see the cross-reference to confirm. Choose the suffix for your duty: shields for dry, clean positions, contact seals for wet or dusty ones, and a larger clearance class where the fit or temperature demands it.

Other Ball Bearing Units series: E · NAU · LSE · UC · SNV · MSE · SD · SNT