Correntes de Rolos - 2012

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CORRENTES DE ROLOS NOMENCLATURA Roller diameter Strand spacing Width Pitch, P FIGURE 17-4 Portion of a double-strand roller chain. ÂNGULO DE ARTICULAÇÃO E AÇÃO POLIGONAL A T 1/2 Variable R " D FIGURE 17-5 Engagement of a chain and sprocket. 90 20 Angle of articulation, 1/2 60 Chordal speed 10 30 0 0 0 10 20 30 40 0 10 20 30 40 Number of teeth, N Number of teeth. N (a) (b) FIGURE 17-6 (n) Relation between the angle of articulation and the number of sprocket teeth: (h) relation between the number of sprocket and the chordal speed variation.CORRENTES DE ROLOS CAPACIDADE DE POTÊNCIA PARA CORRENTES DE FILEIRA SIMPLES [KW] Table 17-6 POWER RATINGS FOR MEDIUM-PITCH SINGLE-STRAND ROLLER CHAIN BASED ON A 17-TOOTH DRIVING WHEEL Power, kW Pinion speed ISO Type A ISO Type B rev/min 35 40 50 60 80 06B 08B 10B 12B 16B 50 0.12 0.28 0.53 0.94 2.06 0.14 0.34 0.64 1.07 2.59 100 0.22 0.53 0.98 1.74 4.03 0.25 0.64 1.18 2.01 4.83 200 0.41 0.98 1.83 3.40 7.34 0.47 1.18 2.19 3.75 8.94 300 0.58 1.34 2.68 4.56 11.63 0.61 1.70 3.15 5.43 13.06 500 0.98 2.24 4.34 7.69 16.99 1.09 2.72 5.01 8.53 20.57 700 1.29 2.95 5.91 10.73 23.26 1.48 3.66 6.71 11.63 27.73 1000 1.76 3.94 8.05 14.32 28.63 2.03 5.09 8.97 15.65 34.89 1400 2.42 5.28 11.18 14.32 18.49 2.73 6.81 11.67 18.15 38.47 1800 3.07 6.98 8.05 10.44 3.44 8.10 13.03 19.85 2000 3.40 6.26 7.16 8.50 3.80 8.67 13.49 20.57 3000 4.74 4.65 10.02 4000 3.04 5.19 Table 17-7 POWER RATINGS FOR LARGE-PITCH SINGLE-STRAND ROLLER CHAIN BASED ON A 17-TOOTH DRIVING WHEEL Power, kW 200 Pinion speed ANSI ISO Type A ISO Type B rev/min 100 120 140 160 200 20B 24B 28B 32B 25 2.24 3.75 5.81 9.08 11.88 2.68 4.83 6.80 10.20 50 4.29 7.15 11.18 15.65 22.37 5.10 8.95 12.52 19.24 100 7.96 13.42 20.57 30.42 42.05 9.66 16.99 23.20 35.79 200 14.31 25.05 38.47 56.36 79.63 17.94 31.31 43.84 67.10 300 21.47 35.79 54.57 80.52 116.31 26.31 45.03 63.22 98.42 400 26.84 46.53 71.57 111.84 134.20 34.27 58.15 82.31 120.78 500 34.00 56.36 89.47 134.20 42.05 71.57 96.63 129.70 600 39.37 67.10 107.30 47.41 78.28 103.78 700 44.73 76.05 80.52 52.78 84.99 109.15 800 49.21 57.86 54.87 89.02 900 40.26 48.31 56.96 93.05 1000 34.00 59.05CORRENTES DE ROLOS FATOR DE CARGA Table 17-10 LOAD SERVICE FACTORS Driving source Internal combustion Electric Internal combustion Driven engine with motor or engine with machinery hydraulic drive turbine mechanical drive Smooth 1.00 1.00 1.2 Moderate shock 1.2 1.3 1.4 Heavy shock 1.4 1.5 1.7 FATOR DE CORREÇÃO DOS DENTES Table 17-8 TOOTH CORRECTION FACTORS BASED UPON THE NUMBER OF TEETH N ON THE DRIVING SPROCKET Motord N K₁ N N N 11 0.53 17 1.00 23 1.35 35 1.95 12 0.62 18 1.05 24 1.41 40 2.15 13 0.70 19 1.11 25 1.46 45 2.37 14 0.78 20 1.18 27 1.57 50 2.51 15 0.85 21 1.26 29 1.68 55 2.66 16 0.92 22 1.29 31 1.77 60 2.80 FATOR DE MULTIPLICAÇÃO DE FILEIRAS Table 17-9 MULTIPLE-STRAND FACTORS Number of strands 1.0 2 1.7 3 2.5 4 3.3CORRENTES DE ROLOS DIMENSÕES PARA CORRENTES - ANSI E ISO Table 17-4 DIMENSIONS OF SINGLE-STRAND AMERICAN STANDARD ROLLER CHAIN (ISO TYPE A) Breaking Roller Strand Chain* Pitch, Width, load, Mass,t diameter, spacing, size mm mm kN kg/m mm mm 35 (06C-1) 9.52 4.78 10.2 0.33 5.08 10.13 40 (08A-1) 12.70 7.92 17.2 0.61 7.92 14.38 50 (10A-1) 15.88 9.53 28.3 0.98 10.16 18.11 60 (12A-1) 19.05 12.70 38.5 1.59 11.91 22.78 80 (16A-1) 25.40 15.88 65.8 2.56 15.88 29.29 100 (20A-1) 31.75 19.05 108.9 3.78 19.05 35.76 120 (24A-1) 38.10 25.40 154.2 5.82 22.23 45.44 140 (28A-1) 44.45 25.40 208.7 7.62 25.40 48.87 160 (32A-1) 50.80 31.75 263.1 9.88 28.58 58.55 200 (40A-1) 63.50 38.10 430.9 15.91 39.67 71.55 * First number is ANSI size designation; parentheses enclose the ISO size designation. Detachable; mass is slightly less if riveted. Table 17-5 DIMENSIONS OF SINGLE-STRAND BRITISH STANDARD ROLLER CHAIN (ISO TYPE B) Breaking Roller Strand Chain Pitch, Width, load, Mass, diameter, spacing, size mm mm kN kg/m mm mm 06B-1 9.52 5.72 10.7 0.39 6.35 10.24 08B-1 12.70 7.75 18.2 0.68 8.51 13.92 10B-1 15.88 9.65 22.7 0.85 10.16 16.59 12B-1 19.05 11.68 29.5 1.16 12.07 19.46 16B-1 25.40 17.02 65.0 2.71 15.88 31.88 20B-1 31.75 19.56 98.1 3.70 19.05 36.45 24B-1 38.10 25.40 108.9 6.70 25.40 48.36 28B-1 44.45 30.99 131.5 8.25 27.94 59.56 32B-1 50.80 30.99 172.4 9.22 29.21 58.55 40B-1 63.50 38.10 272.2 15.48 39.37 72.29