Order No.Diameter(mm)Gear moduleDia. pitch124-801 0.80.5-0.5550 124-802 1.00.6-0.6545 124-803 1.191 (3/64 in)0.7-0.835-30 124-821 1.5 0.9-1 28-26124-804 1.588 (1/16 in)0.9-1 28-26124-805 2.0 1.25 22124-806 2.381 (3/32 in)1.5 17124-822 2.5 1.5 17124-807 3.0 1.75 15124-808 3.175 (1/8 in)- 14124-823 3.5 2 13124-809 3.969 (5/32 in)2 13124-810 4.0 2.25 11124-824 4.5 2.5 10124-811 4.763 (3/16 in)2.5 10124-812 5.0 2.759124-813 5.556 (7/32 in)3.0-3.258124-814 6.0 3.57124-815 6.35 (1/4 in)3.757124-816 7.0 4.06.5124-817 7.144 (9/32 in)4.256124-818 7.938 (5/16 in)4.55.5124-819 8.0 4.75 5.5124-820 8.731 (11/32 in)5.0-5.25 5





