This four-point contact bearing carries combined radial and bidirectional axial loads within a single row, using the four-point contact geometry between balls and raceways to take up axial thrust from either direction without a second bearing. Bore diameter is 35.0 mm, outside diameter 72.0 mm, width 17.0 mm, mass 0.342 kg. The solid brass cage (MPA) guides the balls at the limiting speed of 19800 1/min and reference speed of 8500 1/min. The separable design with a split inner ring allows for a higher fill of balls, giving greater load capacity per unit size than a comparable deep groove ball bearing. The solid brass cage suits sustained operation at the higher speed range and reduces cage wear under axial loading. Mounting requires attention to the split ring orientation and correct axial clamping to maintain the four-point contact angle across both rings.