QJ3944X1 Angular Contact Ball Bearing

Four Point Angular Contact Ball Bearings (Model: QJ3944X1 / 176744) are designed to handle combined radial and axial loads in both directions, providing high rigidity and precision. The bearing has a bore diameter of 220mm, outer diameter of 309.5mm, and a width of 60mm. The minimum fillet radius is 3mm. It offers a dynamic load capacity of 246kN and a static load capacity of 412kN. With a limiting speed of 900 r/min for grease lubrication and 1200 r/min for oil lubrication, and a weight of 14.8 kg, it suits various industrial setups. The mounting dimensions include a minimum inner ring diameter of 243mm, maximum outer ring diameter of 287mm, and maximum fillet radius of 2.5mm. Ideal for precision machine tools, small to medium-sized industrial gearboxes, this bearing ensures reliable operation in different machinery. Manufactured to high-quality standards, it delivers exceptional precision and durability under varying loads, supporting both radial and bidirectional axial load requirements. The manufacturer offers a Standard 12-month warranty extendable up to 18 months through authorized Jinyu distributors. OEM solutions available.