The 100mm Aluminium Mecanum wheels (Bush type rollers) allow a robot to achieve omnidirectional movement while supporting large weights.The 4″(100mm)  Mecanum wheel utilize 9 rollers positioned between 2 plates. These mecanum wheels are usually designed for movement in any direction. The rollers translate the force in the rotational direction of the wheel to a force normal to the wheel direction. The Mecanum wheels allow a robot to achieve omnidirectional movement while supporting large weights.The 4″(100mm)  Mecanum wheel utilize 9 rollers positioned between 2 plates. Package Includes: 1 x 100mm Aluminium Mecanum wheels (Bush type rollers) Right 3 x m5×65 Allen Bolts for coupling Specifications and Features: Size :4″(100mm) Diameter Thickness of wheel: 45mm Weight: 340 grams. Roller Material: Nitrile rubber Side plates: Aluminum(High-Grade alloy aluminum) Plate Thickness 2.5mm Nut: Nylock Nut Bearing Type used: Single groove ball bearing, Double sealed. Holes for Mounting: PCD 47.5mm Diameter of Holes: 5mm (m5 bolt compatible) 15 Days Warranty This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Prayog India customers from any kind of manufacturing defects.  Reimbursement or replacement will be done against manufacturing defects. SKU: PGI-002735 Category: Tyres & Wheels