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NEW 1–20 1 Radial: 375 N Axial: 1798 N @ 250 rpm output Single Stage: 8 arc min. Double Stage: 9 arc min. Planetary Gearheads – Size 60 SINGLE & DOUBLE STAGE SPECIFICATIONS: Max. Input Speed: 4000 rpm Shaft Loading: Efficiency:  Single Stage: 90%                     Double Stage: 85% Max. Backlash: Torsional Stiffness: 0.8 N • m/arc min. Operating Temperature: -34°C to +121°C Weight:  Single Stage: 1 kg Double Stage: 1.2 kg FEATURES: True planetary system Gears heat-treated to HRC 50 High torsional stiffness Readily mounts to most motors CATALOG NUMBER DESIGNATION: MATERIAL: Housing:  Anodized Aluminum Gears: Steel, Heat-Treated Bearings:  Ball, Sealed 53 (2.09) Single Stage 70 (2.76) Double Stage 12 (106) 14 (124) 14 (124) 20 (177) 22 (195) 25 (221) 25 (221) 19 (168) Maximum Rated Continuous Torque at 1000 rpm N • m (lb. in.)     3:1     5:1   10:1   15:1   25:1   30:1   50:1 100:1 L mm (in.) Maximum Rated Continuous Torque at 4000 rpm N • m (lb. in.) Gear Ratio 52 (460) 46 (407) 45 (398) 52 (460) 52 (460) 52 (460) 51 (451) 0.52 (4.6) 0.46 (4.1) 0.44 (3.9) 0.46 (4.1) 0.44 (3.9) Maximum Momentary Torque N • m (lb. in.) Inertia Reflected Back to Motor Shaft kg-cm2 (lb. in. sec x 10-4) Ratio Code 003 005 010 015 025 030 050 100 Continued on the next page   8   9 10 13 15 16 18 16   (71)   (80)   (89) (115) (133) (142) (159) (142) Dimensions in parentheses are in inches. Mounting Bracket Code 1, 2 or 3 Sleeve Code A, B, C, D, E, F, G, H or I S 9 1 6 0 T M Ratio Code