Hub Unit Bearings Overview Hub unit bearings must meet increasingly stringent requirements for lighter weight, greater fuel efficiency gains and enhanced modular production systems. With the widespread adoption of anti-lock braking systems (ABS) to ensure stable maneuverability during braking, the demand for wheel unit bearings with built-in sensors continues to grow. nsk guarantees the high quality of all our products through repeated, rigorous bench tests and other inspections that take full advantage of our cutting-edge technology and are only available from top bearing manufacturers. NiuShang offers compact and lightweight hub unit bearings with built-in ABS sensors.