5:1 Ratio, Cast Iron Single-Reduction Worm Reducer, 0.625" Input Diameter, 1.500" Output Diameter, C-Face Quill Input, Hollow Bore Output Rating Table (@ 1.00 Service Factor) (AGMA Load Class I) Oil Input Output Efficiency% RPM HP Thermal HP RPM Torque Thermal Torque Conventional 2, 500 4.400 2.910 500 483 319 87.10% PAO Synthetic 2, 500 4.400 4.400 500 512 512 92.30% PAG Synthetic 2, 500 4.400 4.400 500 528 528 95.20% Conventional 1, 750 3.890 2.800 350 605 435 86.30% PAG Synthetic 1, 750 3.890 3.890 350 661 661 94.40% PAO Synthetic 1, 750 3.890 3.890 350 641 641 91.50% PAG Synthetic 1, 170 3.130 3.130 234 786 786 93.30% PAO Synthetic 1, 170 3.130 3.130 234 762 762 90.50% Conventional 1, 170 3.130 2.400 234 719 551 85.40% PAO Synthetic 100 0.400 0.400 20 1, 049 1, 049 84.20% Conventional 100 0.400 0.400 20 989 989 79.40% PAG Synthetic 100 0.400 0.400 20 1, 081 1, 081 86.80%