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Chain Product » Drive chain » Leaf Chain - AL & BL Series
Leaf Chain - AL & BL Series Tsubaki Leaf Chain
Leaf Chains, sometimes called cable chains or balance chains, consist of interlacing link plates and riveted pins. They are particularly suited for use in lift trucks, counter-weights, and reciprocating motion mechanisms.
AL Series

AL Series Leaf Chains consist of link plates of the same contour and thickness as the pin link plates of ANSI roller chains of the same pitch. The pins have the same diameter as those of ANSI roller chains of the same pitch.
Leaf Chain Lacing
BL Series

BL Series Leaf Chains consist of link plates which are thicker and larger in contour than the AL Series link plates of the same pitch. The BL Series link plates are the link plates of the ANSI roller chain of the next larger pitch. The pins have the same diameter as those of ANSI roller chains of the next larger pitch.
Leaf Chain Lacing

Leaf Chain Lacing

AL Series

AL Series Leaf Chain

Dimensions-mm
Chain No. Pitch P Lacing Min. Tensile Strength kN {kgf}
AL-422 12.70 2 x 2 16.7 {1,700}
AL-444 12.70 4 x 4 33.3 {3,400}
AL-466 12.70 6 x 6 50.5 {5,100}
AL-522  15.875 2 x 2 27.5 {2,800}
AL-544  15.875 4 x 4 54.9 {5,600}
AL-566  15.875 6 x 6 82.4 {8,400}
AL-622 19.05 2 x 2 38.2 {3,900}
AL-644 19.05 4 x 4 76.5 {7,800}
AL-666 19.05 6 x 6 115 {11,700}
AL-822 25.40 2 x 2 64.7 {6,600}
AL-844 25.40 4 x 4 129 {13,200}
AL-866 25.40 6 x 6 194 {19,800}
AL-1022 31.75 2 x 2 98.1 {10,000}
AL-1044 31.75 4 x 4 196 {20,000}
AL-1066 31.75 6 x 6 294 {30,000}
AL-1222 38.10 2 x 2 141 {14,400}
AL-1244 38.10 4 x 4 282 {28,800}
AL-1266 38.10 6 x 6 424 {43,200}
AL-1444 44.45 4 x 4 373 {38,000}
AL-1466 44.45 6 x 6 559 {57,000}
AL-1644 50.80 4 x 4 471 {48,000}
AL-1666 50.80 6 x 6 706 {72,000}
Dimensions-mm
Chain No. Pin Link Plate Hole Dia. (min.) S Approx. Mass kg/m
Dia. D Overall Length L Thickness T Height H
AL-422 3.97 8.40 1.5 10.4 4.02 0.38
AL-444 3.97 14.85 1.5 10.4 4.02 0.74
AL-466 3.97 21.30 1.5 10.4 4.02 1.10
AL-522 5.08 10.85 2.0 13.0 5.13 0.62
AL-544 5.08 19.35 2.0 13.0 5.13 1.22
AL-566 5.08 27.80 2.0 13.0 5.13 1.81
AL-622 5.94 12.65 2.4 15.6 6.00 0.87
AL-644 5.94 22.55 2.4 15.6 6.00 1.71
AL-666 5.94 32.45 2.4 15.6 6.00 2.54
AL-822 7.90 16.35 3.2 20-8 7.97 1.51
AL-844 7.90 29.80 3.2 20.8 7.97 2.98
AL-866 7.90 43.20 3.2 20.8 7.97 4.44
AL-1022 9.48 20.05 4.0 26.0 9.57 2.69
AL-1044 9.48 36.70 4.0 26.0 9.57 5.31
AL-1066 9.48 53.30 4.0 26.0 9.57 7.93
AL-1222 11.04 24.20 4.8 31.2 11.14 3.57
AL-1244 11.04 44.00 4.8 31.2 11.14 7.07
AL-1266 11.04 63.85 4.8 31.2 11.14 10.56
AL-1444 12.64 51.30 5.6 36.4 12.74 10.34
AL-1466 12.64 74.55 5.6 36.4 12.74 15.16
AL-1644 14.21 58.05 6.4 41.6 14.32 12.98
AL-1666 14.21 84.45 6.4 41.6 14.32 19.41

BL Series

BL Series Leaf Chain
Dimensions-mm
Chain No. Pitch P Lacing Min. Tensile Strength kN {kgf}
BL-422 12.70 2 x 2 23.5 {2,400}
BL-423 12.70 2 x 3 23.5 {2,400}
BL-434 12.70 3 x 4 35.3 {3,600}
BL-444 12.70 4 x 4 47.1 {4,800}
BL-446 12.70 4 x 6 47.1 {4,800}
BL-466 12.70 6 x 6 69.6 {7,100}
BL-522  15.875 2 x 2 39.2 {4,000}
BL-523  15.875 2 x 3 39.2 {4,000}
BL-534  15.875 3 x 4 58.8 {6,000}
BL-544  15.875 4 x 4 78.5 {8,000}
BL-546  15.875 4 x 6 78.5 {8,000}
BL-566  15.875 6 x 6 118 {12,000}
BL-622 19.05 2 x 2 63.7 {6,500}
BL-623 19.05 2 x 3 63.7 {6,500}
BL-634 19.05 3 x 4 95.6 {9,750}
BL-644 19.05 4 x 4 127 {13,000}
BL-646 19.05 4 x 6 127 {13,000}
BL-666 19.05 6 x 6 191 {19,500}
BL-822 25.40 2 x 2 103 {10,500}
BL-823 25.40 2 x 3 103 {10,500}
BL-834 25.40 3 x 4 155 {15,800}
BL-844 25.40 4 x 4 190 {19,400}
BL-846 25.40 4 x 6 206 {21,000}
BL-866 25.40 6 x 6 286 {29,200}
BL-1022 31.75 2 x 2 141 {14,400}
BL-1023 31.75 2 x 3 141 {14,400}
BL-1034 31.75 3 x 4 216 {22,000}
BL-1044 31.75 4 x 4 282 {28,800}
BL-1046 31.75 4 x 6 282 {28,800}
BL-1066 31.75 6 x 6 424 {43,200}
BL-1222 38.10 2 x 2 186 {19,000}
BL-1223 38.10 2 x 3 186 {19,000}
BL-1234 38.10 3 x 4 299 {30,500}
BL-1244 38.10 4 x 4 373 {38,000}
BL-1246 38.10 4 x 6 373 {38,000}
BL-1266 38.10 6 x 6 559 {57,000}
BL-1422 44.45 2 x 2 235 {24,000}
BL-1423 44.45 2 x 3 235 {24,000}
BL-1434 44.45 3 x 4 387 {39,500}
BL-1444 44.45 4 x 4 471 {48,000}
BL-1446 44.45 4 x 6 471 {48,000}
BL-1466 44.45 6 x 6 706 {72,000}
BL-1622 50.80 2 x 2 353 {36,000}
BL-1623 50.80 2 x 3 353 {36,000}
BL-1634 50.80 3 x 4 554 {56,500}
BL-1644 50.80 4 x 4 706 {72,000}
BL-1646 50.80 4 x 6 706 {72,000}
BL-1666 50.80 6 x 6 1060 {108,100}
BL-2022 63.50 2 x 2 530 {54,000}
BL-2023 63.50 2 x 3 531 {54,100}
BL-2034 63.50 3 x 4 795 {81,100}
BL-2044 63.50 4 x 4 1062 {108,200}
BL-2046 63.50 4 x 6 1062 {108,200}
BL-2066 63.50 6 x 6 1592 {162,300}
Dimensions-mm
Chain No. Pin Link Plate Hole Dia. (min.) S Approx. Mass kg/m
Dia. D Overall Length L Thickness T Height H
BL-422 5.08 10.85 2.0 12.0 5.13 0.68
BL-423 5.08 12.95 2.0 12.0 5.13 0.84
BL-434 5.08 17.20 2.0 12.0 5.13 1.13
BL-444 5.08 19.41 2.0 12.0 5.13 1.28
BL-446 5.08 23.60 2.0 12.0 5.13 1.65
BL-466 5.08 27.80 2.0 12.0 5.13 1.96
BL-522 5.94 12.65 2.4 15.0 6.00 1.07
BL-523 5.94 15.10 2.4 15.0 6.00 1.27
BL-534 5.94 20.10 2.4 15.0 6.00 1.69
BL-544 5.94 22.56 2.4 15.0 6.00 1.89
BL-546 5.94 27.50 2.4 15.0 6.00 2.40
BL-566 5.94 32.45 2.4 15.0 6.00 2.80
BL-622 7.90 16.38 3.2 18.1 7.97 1.68
BL-623 7.90 19.75 3.2 18.1 7.97 2.04
BL-634 7.90 26.45 3.2 18.1 7.97 2.83
BL-644 7.90 29.80 3.2 18.1 7.97 3.18
BL-646 7.90 36.50 3.2 18.1 7.97 4.01
BL-666 7.90 43.20 3.2 18.1 7.97 4.73
BL-822 9.48 20.17 4.0 24.1 9.57 2.59
BL-823 9.48 24.20 4.0 24.1 9.57 3.20
BL-834 9.58 32.55 4.0 24.1 9.57 4.44
BL-844 9.48 36.90 4.0 24.1 9.57 5.04
BL-846 9.48 45.00 4.0 24.1 9.57 6.32
BL-866 9.48 53.30 4.0 24.1 9.57 7.54
BL-1022 11.04 23.98 4.8 30.1 11.14 3.76
BL-1023 11.04 28.90 4.8 30.1 11.14 4.69
BL-1034 11.04 38.85 4.8 30.1 11.14 6.55
BL-1044 11.04 43.39 4.8 30.1 11.14 7.48
BL-1046 11.04 53.70 4.8 30.1 11.14 9.29
BL-1066 11.04 63.85 4.8 30.1 11.14 11.16
BL-1222 12.64 28.04 5.6 36.2 12.74 4.83
BL-1223 12.64 33.90 5.6 36.2 12.74 6.54
BL-1234 12.64 45.50 5.6 36.2 12.74 9.10
BL-1244 12.64 51.30 5.6 36.2 12.74 10.39
BL-1246 12.64 62.95 5.6 36.2 12.74 12.01
BL-1266 12.64 74.57 5.6 36.2 12.74 14.58
BL-1422 14.21 31.62 6.4 42.2 14.32 7.31
BL-1423 14.21 38.20 6.4 42.2 14.32 9.06
BL-1434 14.21 51.40 6.4 42.2 14.32 11.32
BL-1444 14.21 58.05 6.4 42.2 14.32 12.96
BL-1446 14.21 71.25 6.4 42.2 14.32 18.00
BL-1466 14.21 84.46 6.4 42.2 14.32 22.51
BL-1622 17.38 35.59 7.2 48.2 17.49 9.84
BL-1623 17.38 43.25 7.2 48.2 17.49 12.16
BL-1634 17.38 58.40 7.2 48.2 17.49 16.95
BL-1644 17.38 65.86 7.2 48.2 17.49 18.97
BL-1646 17.38 81.05 7.2 48.2 17.49 24.09
BL-1666 17.38 96.15 7.2 48.2 17.49 28.73
BL-2022 23.73 47.94 9.5 60.3 23.84 14.43
BL-2023 23.73 57.90 9.5 60.3 23.84 17.95
BL-2034 23.73 77.82 9.5 60.3 23.84 24.95
BL-2044 23.73 87.78 9.5 60.3 23.84 28.45
BL-2046 23.73 107.70 9.5 60.3 23.84 35.44
BL-2066 23.73 127.62 9.5 60.3 23.84 42.01
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