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#120 Roller Chain Sprockets

120 sprockets are manufactured for 1.5" pitch ANSI 120 Roller Chains and are available in a wide array of configurations and tooth counts. Our 120 roller chain sprockets are supplied with hardened teeth as a standard for tooth counts 30 and below, are made from a high-strength steel, and are typically black oxided for corrosion resistance. We also supply a slew of custom 120 chain sprockets and can usually have them done within a day or two. For more information or to get a quote please contact us and we will be happy to assist you.

#120 A-Plate Sprockets

Sprocket Size Tooth Count Type Outside Diameter Stock Bore (D) Weight (LBS)
120A8 8 A 4.520 1-1/4'' - 2.4
120A9 9 A 5.020 1-1/4'' 3-3/8'' 3.0
120A10 10 A 5.520 1-1/4'' 3-3/4'' 3.8
120A11 11 A 6.010 1-1/4'' 3-9/16'' 4.8
120A12 12 A 6.500 1-1/4'' 4-1/8'' 5.8
120A13 13 A 6.990 1-1/4'' 4-9/16 6.7
120A14 14 A 7.470 1-1/4'' 4-3/4'' 8.0
120A15 15 A 7.960 1-1/4'' 4-3/4'' 9.1
120A16 16 A 8.440 1-1/4'' 5-1/4'' 10.6
120A17 17 A 8.920 1-1/4'' 5-1/4'' 12.6
120A18 18 A 9.410 1-1/4'' 5-1/4'' 13.6
120A19 19 A 9.890 1-1/4'' 5-1/4'' 15.1
120A20 20 A 10.370 1-1/4'' 5-1/4'' 16.9
120A21 21 A 10.850 1-1/4'' 5-1/4'' 18.7
120A22 22 A 11.330 1-1/4'' 5-1/4'' 20.0
120A23 23 A 11.810 1-1/4'' 5-1/4'' 22.1
120A24 24 A 12.290 1-1/4'' 5-1/4'' 24.8
120A25 25 A 12.770 1-1/4'' 5-1/4'' 26.3
120A26 26 A 13.250 1-1/2'' 6'' 28.3
120A27 27 A 13.730 1-1/2'' - 30.9
120A28 28 A 14.210 1-1/2'' 6'' 33.6
120A30 30 A 15.170 1-1/2'' 6'' 39.0
120A32 32 A 16.130 1-1/2'' 6'' 43.9
120A33 33 A 16.610 1-1/2'' - 48.2
120A34 34 A 17.090 1-1/2'' - 50.0
120A35 35 A 17.570 1-1/2'' 6'' 52.0
120A36 36 A 18.050 1-1/2'' 6'' 56.0
120A40 40 A 19.960 1-1/2'' 6'' 71.0
120A42 42 A 20.920 1-1/2'' 6'' 75.0
120A45 45 A 22.350 1-1/2'' 6'' 88.0
120A48 48 A 23.790 1-1/2'' 6'' 103.0
120A54 54 A 26.650 1-1/2'' 6'' 140.0
120A60 60 A 29.520 1-1/2'' 7'' 160.0
120A70 70 A 34.300 1-1/2'' 7-1/2'' 216.0
120A80 80 A 39.080 1-1/2'' 7-1/2'' 284.0
120A90 90 A 43.850 1-1/2'' - 358.0
#120 B-Hub Sprockets

Sprocket Size Tooth Count Type Outside Diameter Stock Bore Recommend Max. Bore Hub Diameter Length Thru Bore Weight (LBS)
120B9 9 B 5.020 1-3/8'' 1-13/16'' 3-3/8'' 2-1/4'' 5.3
120B10 10 B 5.520 1-3/8'' 2-1/4'' 3-3/4'' 2-1/4'' 7.1
120B11 11 B 6.010 1-3/8'' 2-3/8'' 3-9/16'' 2-1/8'' 7.6
120B12 12 B 6.500 1-3/8'' 2-3/4'' 4-1/8'' 2-1/8''
9.9
120B13 13 B 6.990 1-3/8'' 3'' 4-9/16'' 2-1/4'' 12.4
120B14 14 B 7.470 1-3/8'' 3-1/4'' 4-3/4'' 2-1/4'' 14.4
120B15 15 B 7.960 1-1/4'' 3-1/4'' 4-3/4'' 2-3/8'' 16.7
120B16 16 B 8.440 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 19.9
120B17 17 B 8.920 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 20.8
120B18 18 B 9.410 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 22.2
120B19 19 B 9.890 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 24.8
120B20 20 B 10.370 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 25.8
120B21 21 B 10.850 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 26.7
120B22 22 B 11.330 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 28.2
120B23 23 B 11.810 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 30.3
120B24 24 B 12.290 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 32.1
120B25 25 B 12.770 1-1/4'' 3-1/2'' 5-1/4'' 2-3/8'' 34.6
120B26 26 B 13.250 1-1/2'' 4'' 6'' 2-1/2'' 40.0
120B28 28 B 14.210 1-1/2'' 4'' 6'' 2-1/2'' 44.9
120B30 30 B 15.170 1-1/2'' 4'' 6'' 2-1/2'' 50.2
120B32 32 B 16.130 1-1/2'' 4'' 6'' 2-1/2'' 56.0
120B35 35 B 17.570 1-1/2'' 4'' 6'' 2-1/2'' 62.4
120B36 36 B 18.050 1-1/2'' 4'' 6'' 2-1/2'' 66.4
#120 C-Hub Sprockets

Sprocket Size Tooth Count Type Outside Diameter Stock Bore Recommend Max. Bore Hub Diameter Length Thru Bore Weight (LBS)
120C11 11 C 6.010 1-3/8'' 2-3/8'' 3-9/16'' 3-3/8'' 12.45
120C12 12 C 6.500 1-3/8'' 2-3/4'' 4-13/16'' 3-3/8'' 14.80
120C13 13 C 6.990 1-3/8'' 3'' 4-5/8'' 3-3/8'' 17.15
120C14 14 C 7.470 1-3/8'' 3-1/4'' 4-3/4'' 3-3/8'' 19.50
120C40 40 C 19.960 1-1/2'' 4'' 6'' 3-3/4'' 92.0
120C42 42 C 20.920 1-1/2'' 4'' 6'' 3-3/4'' 98.0
120C45 45 C 22.350 1-1/2'' 4'' 6'' 3-3/4'' 99.2
120C48 48 C 23.790 1-1/2'' 4'' 6'' 4'' 113.0
120C54 54 C 26.650 1-1/2'' 4'' 6'' 4'' 133.0
120C60 60 C 29.520 1-1/2'' 5-1/4'' 7'' 4'' 160.0
120C70 70 C 34.300 1-1/2'' 5-3/8'' 7-1/2'' 4-1/2'' 206.0
120C80 80 C 39.080 1-1/2'' 5-3/8'' 7-1/2'' 4-1/2'' 254.0
#120 QD Sprockets

Sprocket Size Tooth Count Bushing Outside Diameter Pitch Diameter Type Max. Bore Dimension (L1) Dimension (L2) Dimension (C) Dimension (Y) Dimension (P) Dimension (G) Dimension (X) Weight (LBS)
120SF12 12 SF 6.500 5.796 B 2-15/16'' 2-1/4'' 2-1/4'' 4-5/8'' 1-5/64'' - 21/64'' 1-1/4'' 4.7
120SF13 13 SF 6.990 6.268 B 2-15/16'' 2-1/4'' 2-1/4'' 4-5/8'' 1-5/64'' - 21/64'' 1-1/4'' 6.1
120SF14 14 SF 7.470 6.741 B 2-15/16'' 2-1/4'' 2-1/4'' 4-5/8'' 1-5/64'' - 21/64'' 1-1/4'' 7.4
120SF15 15 SF 7.960 7.215 B 2-15/16'' 2-1/4'' 2-1/4'' 4-5/8'' 1-5/64'' - 21/64'' 1-1/4'' 8.0
120E16 16 E 8.440 7.689 B1 3-1/2'' 2-5/8'' 2-1/4'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 11.2
120E17 17 E 8.920 8.163 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 13.4
120E18 18 E 9.410 8.638 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 14.8
120E19 19 E 9.890 9.113 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 16.5
120E20 20 E 10.370 9.589 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 19.2
120E21 21 E 10.850 10.064 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 19.9
120E22 22 E 11.330 10.540 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 21.6
120E23 23 E 11.810 11.016 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 23.8
120E24 24 E 12.290 11.492 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 25.8
120E25 25 E 12.770 11.968 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 28.1
120E26 26 E 13.250 12.444 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 29.9
120E28 28 E 14.210 13.397 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 24.7
120E30 30 E 15.170 14.350 B1 3-1/2'' 2-5/8'' 2-15/16'' 6 1-9/16'' 1/8'' 45/64'' 1-5/8'' 39.4
120F32 32 F 16.130 15.303 C 3-15/16'' 3-5/8'' 4 6-5/8'' 1 1-11/16'' 1-37/64'' 2-1/2'' 50.5
120F35 35 F 17.570 16.734 C 3-15/16'' 3-5/8'' 4 6-5/8'' 1 1-11/16'' 1-37/64'' 2-1/2'' 59.5
120F36 36 F 18.050 17.221 C 3-15/16'' 3-5/8'' 4 6-5/8'' 1 1-11/16'' 1-37/64'' 2-1/2'' 63.4
120F40 40 F 19.960 19.118 C 3-15/16'' 3-5/8'' 4 6-5/8'' 1 1-11/16'' 1-37/64'' 2 -1/2'' 77.0
120F42 42 F 20.920 20.072 C 3-15/16'' 3-5/8'' 4 6-5/8'' 1 1-11/16'' 1-37/64'' 2-1/2'' 83.0
120F45 45 F 22.350 21.503 C 3-15/16'' 3-5/8'' 4 6-5/8'' 1 1-11/16'' 1-37/64'' 2-1/2'' 84.0
120F48 48 F 23.790 22.935 C 3-15/16'' 3-5/8'' 4 6-5/8'' 1 1-11/16'' 1-37/64'' 2-1/2'' 92.0
120F54 54 F 26.650 25.798 C 3-15/16'' 3-5/8'' 4 6-5/8'' 1 1-11/16'' 1-37/64'' 2-1/2'' 114.0
120J60 60 J 29.520 28.661 C 4-7/16'' 4-1/2'' 5 7-1/4'' 1-3/16'' 2-5/16'' 2-17/64 3-3/16'' 140.0
120J70 70 J 34.300 33.434 C 4-7/16'' 4-1/2'' 5 7-1/4'' 1-3/16'' 2-5/16'' 2-17/64 3-3/16'' 177.0
120J80 80 J 39.080 38.207 C 4-7/16'' 4-1/2'' 5 7-1/4'' 1-3/16'' 2-5/16'' 2-17/64 3-3/16'' 222.0
#120 Taper Bushed Sprockets

Sprocket Size Tooth Count Bushing Outside Diameter Pitch Diameter Max. Bore Dimension (L) Dimension (C) Type Weight (LBS)
120BTB12 12 2012 6.498 5.796 2'' 1-1/4'' 3-9/16'' B 5.5
120BTB13 13 2517 6.896 6.268 2-1/2'' 1-3/4'' 4-1/4'' B 6.0
120BTB14 14 2517 7.472 6.741 2-1/2'' 1-3/4'' 4-1/4'' B 7.0
120BTB15 15 2517 7.957 7.215 2-1/2'' 1-3/4'' 4-1/4'' B 8.0
120BTB16 16 3020 8.441 7.689 3'' 2'' 5-1/4'' B 10.0
120BTB17 17 3020 8.924 8.163 3'' 2'' 5-1/4'' B 11.0
120BTB18 18 3020 9.407 8.638 3'' 2'' 5-1/4'' B 12.0
120BTB19 19 3020 9.889 9.113 3'' 2'' 5-1/4'' B 14.0
120BTB20 20 3020 10.371 9.588 3'' 2'' 5-1/4'' B 15.5
120BTB21 21 3020 10.851 10.064 3'' 2'' 5-1/4'' B 17.5
120BTB24 24 3020 12.294 11.492 3'' 2'' 5-1/4'' B 23.5
120BTB26 26 3020 13.254 12.444 3'' 2'' 5-1/4'' B 28.5
120BTB30 30 3020 15.171 14.351 3'' 2'' 5-1/4'' B 33.5
120CTB35 35 3020 17.566 16.734 3'' 2'' 5-1/4'' C 52.0
120CTB45 45 3030 22.351 21.503 3'' 2'' 5-7/8'' C 82.0
120CTB60 60 3535 29.552 28.661 3-1/2'' 3-1/2'' 6-1/2'' C 140.0
120CTB70 70 3535 34.301 33.434 3-1/2'' 3-1/2'' 6-1/2'' C 175.0
120CTB80 80 3535 39.078 38.207 3-1/4'' 3-1/2'' 6-1/2'' C 220.0
#120 Taper Bushed Sprockets

Sprocket Size Tooth Count Bushing Outside Diameter Pitch Diameter Type Max. Bore Dimension (OL) Dimension (L) Dimension (C) Dimension (H) Dimension (P) Dimension (T) Weight (LBS)
120Q11H 11 Q1 6.010 5.324 4 2-11/16'' 2-25/32 2-1/2'' - 4-1/8'' 1-9/16'' 0.924 4.8
120Q12H 12 Q1 6.500 5.796 4 2-11/16'' 2-25/32 2-1/2'' - 4-1/8'' 1-9/16'' 0.924 6.3
120Q13H 13 Q1 6.990 6.268 4 2-11/16'' 2-25/32 2-1/2'' - 4-1/8'' 1-9/16'' 0.924 7.9
120Q14H 14 Q1 7.470 6.741 4 2-11/16'' 2-25/32 2-1/2'' - 4-1/8'' 1-9/16'' 0.924 9.2
120Q15H 15 Q1 7.960 7.215 4 2-11/16'' 2-25/32 2-1/2'' - 4-1/8'' 1-9/16'' 0.924 10.4
120Q16H 16 Q1 8.440 7.689 4 2-11/16'' 2-25/32 2-1/2'' - 4-1/8'' 1-15/16'' 0.924 11.8
120R16H 16 R1 8.440 7.689 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 12.0
120Q17H 17 Q1 8.920 8.163 4 2-11/16'' 2-25/32 2-1/2'' - 4-1/8'' 1-15/16'' 0.924 13.4
120R17H 17 R1 8.920 8.163 4 3-3/4'' 5-5/32'' 2-7/8''
5-3/8'' 1-15/16'' 0.924 13.7
120Q18H 18 Q1 9.410 8.638 4 2-11/16'' 2-25/32 2-1/2'' - 4-1/8'' 1-15/16'' 0.924 15.6
120R18H 18 R1 9.410 8.638 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 15.0
120R19H 19 R1 9.890 9.113 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 16.9
120R20H 20 R1 10.370 9.589 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 18.8
120R21H 21 R1 10.850 10.064 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 20.7
120R22H 22 R1 11.330 10.540 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 22.5
120R23H 23 R1 11.810 11.016 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 24.3
120R24H 24 R1 12.290 11.492 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 27.1
120R25H 25 R1 12.770 11.968 4 3-3/4'' 5-5/32'' 2-7/8'' - 5-3/8'' 1-15/16'' 0.924 29.1
120R26H 26 R1 13.250 12.444 5 3-3/4'' 5-5/32'' 2-7/8'' 1-1/16'' 5-3/8'' 7/8'' 0.924 33.3
120R28H 28 R1 14.210 13.397 5 3-3/4'' 5-5/32'' 2-7/8'' 1-1/16'' 5-3/8'' 7/8'' 0.924 38.0
120R30H 30 R1 15.170 14.350 5 3-3/4'' 5-5/32'' 2-7/8'' 1-1/16'' 5-3/8'' 7/8'' 0.924 43.3
120R32 32 R1 16.130 15.303
5 3-3/4'' 5-5/32'' 2-7/8'' 1-1/16'' 5-3/8'' 7/8'' 0.924 48.4
120R35 35 R2 17.570 16.734 6 3-5/8'' 5-5/32'' 4-7/8'' 2'' 5-3/8'' 1-15/16'' 0.924 68.0
120R36 36 R2 18.050 17.211 6 3-5/8'' 5-5/32'' 4-7/8'' 2'' 5-3/8'' 1-15/16'' 0.924 72.0
120R40 40 R2 19.960 19.118 6 3-5/8'' 5-5/32'' 4-7/8'' 2'' 5-3/8'' 1-15/16'' 0.924 82.0
120S40 40 S1 19.960 19.118 5 4-1/4'' 4-3/4'' 4-3/8'' 2-3/8'' 6-3/8 1-1/16'' 0.924 83.0
120S42 42 S1 20.920 20.072 5 4-1/4'' 4-3/4'' 4-3/8'' 2-3/8'' 6-3/8 1-1/16'' 0.924 90.0
120R45 45 R2 22.350 21.503 6 3-5/8'' 5-5/32'' 4-7/8'' 2'' 5-3/8'' 1-15/16'' 0.924 102.0
120S45 45 S1 22.350 21.503 5 4-1/4'' 4-3/4'' 4-3/8'' 2-3/8'' 6-3/8 1-1/16'' 0.924 100.0
120S48 48 S1 23.790 22.935 5 4-1/4'' 4-3/4'' 4-3/8'' 2-3/8'' 6-3/8 1-1/16'' 0.924 111.0
120R54 54 R1 26.650 25.798 5 4-1/4'' 4-3/4'' 4-3/8'' 2-3/8'' 6-3/8 1-1/16'' 0.924 138.0
120R60 60 R2 29.520 28.661 6 3-5/8'' 5-5/32'' 4-7/8'' 2'' 5-3/8'' 1-15/16'' 0.924 179.0
120S60 60 S1 29.520 28.661 5 4-1/4'' 4-3/4'' 4-3/8'' 2-3/8'' 6-3/8 1-1/16'' 0.924 180.0
120R70 70 R2 34.300 33.434 6 3-5/8'' 5-5/32'' 4-7/8'' 2'' 5-3/8'' 1-15/16'' 0.924 148.0
120S70 70 S2 34.300 33.434 5 4-3/16'' 7-1/8'' 6-3/4'' 2-3/8'' 6-3/8 2-15/16'' 0.924 167.0
120R80 80 R2 39.080 38.207 6 3-5/8'' 5-5/32'' 4-7/8'' 2'' 5-3/8'' 1-15/16'' 0.924 291.0
120S80 80 S2 39.080 38.207 6 4-3/16'' 7-1/8'' 6-3/4'' 2-3/8'' 6-3/8 2-15/16'' 0.924 305.0



We stock and supply a full line of high-quality ANSI #120 roller chain sprockets in a very wide range of configurations including; A-Plate, B-Hub, C-Hub, Idler, QD, Taper Bushed, Stainless Steel, Plastic, Single, Double, Double-Single, Triple, and more! We supply sprockets to a wide range of customers including; Re-Sellers, OEMs, large & small end-users, and Government Entities. The #120 roller chain sprockets we offer exceed in quality, performance and working life due to the manufacturing standards that have been set for these sprockets. Additionally, we offer a line of 1045 Premium Hardened Steel Black-Oxide Coated #120 Sprockets for the toughest and most demanding applications. All of our #120 sprockets fully meet all ANSI standards to ensure proper contact between the sprocket and roller chain. We also offer a full line of high-quality #120 roller chain at some of the most competitive prices and widest selection in the industry. To get a quote on #120 roller chain sprockets or if you have any questions please contact us and we will be happy to assist you!