Roller Chain General Catalog

No. 240

No. 2042

3” PITCH

1” PITCH

PLAIN BORE

DOUBLE PITCH

Chain Data Size

240

2042

Pitch

3˝

Pitch

1˝

Inside Width

1.875˝ 1.875˝ 1.738˝

Inside Width

5/16˝ 0.625˝ 0.284˝

Roller Diameter

Nominal Tooth Width:

All dimensions in inches unless noted.

2042 Plain Bore Sprocket Dia.

Type “A” Plain Bore

Type “B” Plain Bore

240 Plain Bore Sprocket Dia.

Type “A” Plain Bore

Type “B” & “C” Plain Bore

No. Teeth Outside Dia.

Pitch Dia.

Caliper Dia.

Plain Bore Wt. Lbs.

Plain Bore MAX Bore *

Hub Dia.

LTB Hub Type Hub Style Wt. Lbs.

No. Teeth Outside Dia.

Pitch Dia.

Caliper Dia.

Plain Bore Wt. Lbs.

Plain Bore MAX Bore * Hub Dia.

LTB Hub Type Hub Style Wt.Lbs.

10 11 12 13 14 15 16 17 18 19 20 21 25 30 35 40 45 54 60

11.030 12.020 13.000 13.970 14.940 15.910 16.880 17.850 18.810 19.780 20.740 21.710 25.550 30.340 35.130 39.920 44.700 53.310 59.040

9.708

7.833 8.665 9.716

1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500

30.00 37.00 45.00 54.00 62.00 68.00 82.00 93.00

1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500 1.500

4.500 4.750 5.375 5.375 5.375 5.375 5.500 5.500 5.500 5.500 5.500 5.500 5.500 6.000 6.000 7.000 7.000 7.000 7.000

6.500 7.000 7.500 7.500 7.500 7.500 8.000 8.000 8.000 8.000 8.000 8.000 8.000 9.000 9.000

3.375 3.875 3.875 3.875 3.875 3.875 4.125 4.125 4.125 4.125 4.125 4.125 4.125 6.250 6.250 6.750 6.750 6.750 6.750

B B B B B B B B B B B B B C C C C C C

S D D D D D D D D D D D D D D D D D D

49.00 66.00 72.00 81.00 88.00 98.00

8 9

3.010 3.350 3.680 4.000 4.330 4.660 4.980 5.300 5.630 5.950 6.270 6.590 6.910 7.240 7.560 7.880 8.200 8.520 8.840 9.480

2.613 2.924 3.236 3.549 3.864 4.179 4.494 4.810 5.126 5.442 5.759 6.076 6.392 6.710 7.027 7.344 7.661 7.979 8.296 8.931 9.567

1.988 2.255 2.611 2.888 3.239 3.523 3.869 4.158 4.501 4.794 5.134 5.430 5.768 6.066 6.402 6.702 7.036 7.338 7.671 8.307 8.942

N/A N/A N/A N/A N/A N/A N/A N/A

0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750

1.281 1.469 1.750 1.875 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.250 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375 2.375

1.875 2.219 2.547 2.625 3.063 3.250 3.250 3.250 3.250 3.250 3.250 3.250 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500 3.500

0.875 0.875 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.125 1.125

B B B B B B B B B B B B B B B B B B B B B

S S S S S S S S D D D D D D D D D D D D D

0.72 1.02 1.50 1.68 2.22 2.56 2.72 2.90 3.10 3.40 3.56 3.72 4.72 4.84 5.04 5.18 5.58 5.96 6.22 6.78 7.56

10.648 11.591 12.536 13.482 14.429 15.377 16.327 17.276 18.227 19.177 20.129 23.936 28.700 33.467 38.237 43.007 51.595 57.322

10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30

10.569 11.607 12.475 13.502 14.382 15.401 16.289 17.302 18.197 22.014 26.825 31.559 36.362 41.106 49.720 55.447

120.00 137.00 142.00 154.00 169.00 186.00 254.00 398.00 527.00 672.00 850.00 1148.00 1419.00

108.00 120.00 128.00 148.00 208.00 310.00 416.00 548.00 702.00 1022.00 1268.00

0.594 0.594 0.594 0.594 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719

1.38 1.66 1.88 2.06 2.40 2.62 2.88 3.14 3.22 3.50 3.74 4.76 5.08

10.000 10.000 10.000 10.000

* Dimensions shown allow for standard keyway with set screw at 90 degrees.

10.110

* Dimensions shown allow for standard keyway with set screw at 90 degrees. N/A = Non applicable/Not Available as standard

No. 2050

No. 2040

1 1 / 4 ” PITCH

1” PITCH

DOUBLE PITCH

Chain Data Size

2050

2040

Pitch

1 1/4˝

Pitch

1˝

Inside Width

3/8˝

Inside Width

5/16˝ 0.313˝ 0.284˝

Roller Diameter

0.400˝ 0.343˝

Roller Diameter

Nominal Tooth Width:

All dimensions in inches unless noted.

2050 Plain Bore Sprocket Dia.

Type “A” Plain Bore

Type “B” Plain Bore

2040 Plain Bore Sprocket Dia.

Type “A” Plain Bore

Type “B” Plain Bore

No. Teeth Outside Dia.

Pitch Dia.

Caliper Dia.

Plain Bore Wt. Lbs.

Plain Bore MAX Bore * Hub Dia.

LTB Hub Type Hub Style Wt.Lbs.

No. Teeth Outside Dia.

Pitch Dia.

Caliper Dia.

Plain Bore Wt. Lbs.

Plain Bore MAX Bore * Hub Dia.

LTB Hub Type Hub Style Wt. Lbs.

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30

2.500 2.710 2.910 3.110 3.320 3.520 3.720 3.920 4.120 4.320 4.520 4.720 4.920 5.120 5.320 5.520 5.920 6.320

2.315 2.500 2.690 2.881 3.073 3.266 3.460 3.655 3.850 4.045 4.241 4.437 4.633 4.830 5.026 5.223 5.617 6.012

1.912 2.100 2.270 2.481 2.656 2.866 3.046 3.255 3.436 3.645 3.829 4.037 4.222 4.430 4.616 4.823 5.217 5.612

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750 0.750

0.938 1.000 1.219 1.281 1.406 1.594 1.750 1.781 1.969 2.000 2.000 2.000 2.000 2.000 2.000 2.000 2.000 2.250

1.750 1.984 1.719 1.938 2.156 2.359 2.563 2.781 2.984 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.000 3.250

1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.250 1.250 1.250 1.250 1.250

B B B B B B B B B B B B B B B B B B

S S S S S S S S S D D S D D D D D D

0.62 0.80 0.82 1.00 1.22 1.44 1.68 1.94 2.24 2.30 2.40 2.54 2.66 3.30 3.42 3.62 3.78 4.58

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 28 30

2.000 2.170 2.330 2.490 2.650 2.810 2.980 3.140 3.300 3.460 3.620 3.780 3.940 4.100 4.260 4.420 4.740 5.060

1.852 2.000 2.152 2.305 2.458 2.613 2.768 2.924 3.080 3.236 3.392 3.549 3.706 3.864 4.021 4.179 4.494 4.810

1.537 1.688 1.824 1.993 2.133 2.301 2.444 2.612 2.757 2.924 3.070 3.237 3.386 3.552 3.701 3.867 4.182 4.498

N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A

0.500 0.500 0.500 0.500 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625 0.625

0.813 0.813 0.656 1.031 1.219 1.281 1.313 1.469 1.625 1.750 1.781 1.875 2.000 2.250 2.250 2.250 2.250 2.250

0.875 0.875 0.875 0.875 0.875 0.875 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000 1.000

B B B B B B B B B B B B B B B B B B

S S S S S S S S S S S S D D D D D D

0.34 0.44 0.48 0.60 0.66 0.76 1.00 1.16 1.36 1.54 1.74 1.92 2.16 2.44 2.48 2.60 2.74

1.375 ¨ 1.563 ¨ 1.563 ¨ 1.688 ¨

1.781 1.875 2.047 2.219 2.375 2.547 2.703 2.875 3.000 3.250 3.250 3.250 3.250 3.250

0.719 0.719 0.719 0.719 0.719 0.719 0.719 0.719

1.20 1.30 1.40 1.58 1.68 1.88 2.20 2.54

0.625 0.625 0.625 0.625 0.625 0.625

0.77 0.84 0.91 1.00 1.10 1.30

2.92 * Dimensions shown allow for standard keyway with set screw at 90 degrees. ¨ Has recessed groove in hub for chain clearance. N/A = Non applicable/Not Available as standard

* Dimensions shown allow for standard keyway with set screw at 90 degrees. N/A = Non applicable/Not Available as standard

For more information on Sprockets see pages 132-137.

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