Jacton JTP210 gear drives right angle bevel gearboxes (also known as a bevel right angle gearboxes, a bevel t gearboxes, a right angle bevel gear drives, or a right angle spiral bevel gearboxes) features: 45mm input shaft, 45mm output shaft, high transmission efficiency, 1:1 ratio, 1.5:1 ratio, 2:1 ratio, 3:1 ratio, 4:1 ratio, 5:1 ratio.