Page 45 of Sprocket Catalog by U.S. Tsubaki

no 120 basic sprocket dimensions no teeth outside diameter plain bore 11/2 pitch multiple strand dimensions are in inches unless otherwise indicated 120-2 double strand catalog number list price hub dia ltb max bore wt lbs 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 30 6.009 6.498 6.986 7.472 7.956 8.441 8.924 9.407 9.890 10.371 10.853 11.333 11.814 12.294 12.777 13.254 15.171 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ 1¹ d120b11 d120b12 d120b13 d120b14 d120b15 d120b16 d120b17 d120b18 d120b19 d120b20 d120b21 d120b22 d120b23 d120b24 d120b25 d120b26 d120b30 $603.20 634.00 680.40 727.20 758.00 788.80 835.20 912.20 974.40 1,020.80 1,082.40 1,160.00 1,299.00 1,329.80 1,392.00 1,407.40 1,540.60 3 2³ 3 3 3 3¹ 3¹ 3¹ 3¹ 3¹ 3¹ 3¹ 6¹ 6¹ 6¹ 6¹ 6¹ 3³ 3³ 3³ 3³ 3³ 3³ 3³ 3³ 3³ 3³ 3³ 3³ 4 4 4 4 4 2³ 2¹ 2¹ 3¹ 3¹ 3¹ 3¹ 3¹ 3¹ 3¹ 3¹ 3¹ 4¹ 4¹ 4¹ 4¹ 4¹ 13.50 17.00 20.90 25.20 29.90 33.00 37.10 41.00 45.60 50.40 55.50 60.90 71.30 77.20 83.40 89.90 118.50 see current discount sheet for alteration charges dimensions shown allow for standard keyway with set screw at 90° chain technical data size 120-2 pitch 1¹ inside width 1 roller diameter .875 type b 45

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