Table 2-1 POWER REQUIRED CONDITIONS

HYDRAULIC MOTOR - TM-55-1930-209-14P-6_107

TM-55-1930-209-14P-6 Water Purification Barges (NSN 1930-01-234-2165) Chlorination System Manual
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DECKMASTER Table 2-1 POWER REQUIRED CONDITIONS Theoretical Drive Train Analysis: Winch Drum to Electric Motor 1.0 DRUM TORQUE Pull = 10,000 lbs @ 66.25 inch radius (mid-layer) Pulling Torque = 10,000 x 66.25 = 662,500 in-lb Brake = 18,000 lbs @ 66.25 inch radius (mid-layer) Braking Torque = 1,192,500 in-lbs 2.0 DRUM SPEED Line Speed = 25 FPM @ 66.25 inch radius Drum Speed = 0.721 RPM 3.0 REDUCTION GEAR SET Special: Ring Gear = 3 DP/200PA/181 Teeth/60.333 PD/ 4 inch wide Pinion Gear = 3 DP/200PA/15 Teeth/5.00 PD/ 4 inch wide Ratio: 12.066:1.0 Efficiency: h_gs = 0.95 Required Input Torque = 662 500/12.066 (0.95) = 57,796 in-lbs Pulling = 104,033 in-lbs Braking Required Input Speed = 0.721 (12.066) = = 8.70. RPM 4.0 REDUCTION GEAR BOX Fairfield Torque Hub No. S6A1-33-32 Ratio: 32.31:1 Efficiency: h_gb = 0.95 Required Input Torque = 57,736 in-lbs/(32.31) (0.95) = 1833 in-lbs Pulling = 3,389 in-lbs Braking Required Input Speed = 8.70 (32.31) = 281.1 RPM 2-3

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