Double ball bearing facilitates silent and long term performance. Specially designed motor with wider tip blades for effective air circulation. Automatic winding ensures consistent quality and greater reliability. Large motor for quick heat dissipation. Dimensions with tolerances : Packed Motor set - 240mm X 240mm X 205mm (± 10%) Packed Blade set - 540mm X 140mm X 50mm (± 10%) Capacity with tolerance : 212 CMM