Timken 64700 Tapered Roller Bearing Cup Outer Race

The Timken 64700 tapered roller bearing cup outer race is a precision single‑row outer race designed to mate with Timken tapered roller bearing cones in heavy‑duty rotating equipment, delivering dependable load distribution for combined radial and axial loads. It is commonly installed in industrial gearboxes, mining equipment, construction machinery, heavy‑duty trailers, and power transmission systems where alignment accuracy and long service life matter. This cup is part of Timken’s 64000 series and uses inch (imperial) design units, with an outside diameter of 7.0000 in (177.800 mm) and a cup width of 1.1875 in (30.163 mm). The housing interface features a maximum fillet radius of 0.130 in (3.30 mm) and backing shoulder diameters Da (front face) 6.81 in (172.00 mm) and Db (back face) 6.30 in (160.02 mm). Technical notes include e = 0.52, Y = 1.16, and Cg = 0.108, with a weight of 7.4 lb (3.4 kg). The part is identified by manufacturer part number 64700 and is commonly used alongside Timken 64700 cones; compatible replacements include Timken 64700‑B, SKF 64700, and NTN 64700.