60mm Mecanum Wheel Set (2x Left, 2x Right) - RobotShop
A Set of 6 inches (152mm) Mecanum Wheels with 4 Pieces and Bearing Rollers – 14101 – Oz Robotics
Mecanum wheel - Wikipedia
Applied Sciences | Free Full-Text | Nonuniform Dual-Rate Extended Kalman-Filter-Based Sensor Fusion for Path-Following Control of a Holonomic Mobile Robot with Four Mecanum Wheels