High Fatigue Strength LL Series Roller Chain
KCM "LL (Long Life) Series Roller Chains have undergone intensive improvements in their fatigue strength from pursuing appropriate shapes for link plate to employing high strength steel for all of their parts. They have a higher fatigue strength and thicker plate.
Chain number： KCM 80LL, 100LL, 120LL, 140LL, 160LL
Chain number： KCM 60HLL, 80HLL, 100HLL, 120HLL, 140HLL
KCM 80LL
Pitch P: 25.40
Width between Inner Plates W: 15.88
Roller Dia.D: 15.88
Pin: Dia.d: 7.94
B: 19.30
L1: 32.40
L2: 35.50
Link Plate: Thickness T: 3.2 Thickness t: 24.0 Height H: 20.6
Ave. Tensile Strength kN (kgf): 84.3 (8,600)
Max. Allowable Load kN (kgf): 18.63 (1,900)
Approx. Weight (kg/m): 2.81
Links of KCM JIS & 1 unit: 120
KCM 60HLL
Pitch P: 19.05
Width between Inner Plates W: 12.70
Roller Dia.D: 11.91
Pin: Dia.d: 5.96
B: 17.05
L1: 28.70
L2: 31.40
Link Plate: Thickness T: 3.2 Thickness t: 18.0 Height H: 15.5
Ave. Tensile Strength kN (kgf): 56.9 (5,800)
Max. Allowable Load kN (kgf): 12.75 (1,300)
Approx. Weight (kg/m): 1.79
Links of KCM JIS & 1 unit: 160
KCM 80HLL
Pitch P: 25.40
Width between Inner Plates W: 15.88
Roller Dia.D: 15.88
Pin: Dia.d: 7.94
B: 20.90
L1: 35.60
L2: 38.70
Link Plate: Thickness T: 4.0 Thickness t: 24.0 Height H: 20.6
Ave. Tensile Strength kN (kgf): 98.1 (10,000)
Max. Allowable Load kN (kgf): 20.59 (2,100)
Approx. Weight (kg/m): 3.29
Links of KCM JIS & 1 unit: 120
KCM 120HLL
Pitch P: 38.10
Width between Inner Plates W: 25.40
Roller Dia.D: 22.23
Pin: Dia.d: 11.11
B: 30.25
L1: 53.70
L2: 57.10
Link Plate: Thickness T: 5.6 Thickness t: 36.0 Height H: 31.0
Ave. Tensile Strength kN (kgf): 196.1 (20,000)
Max. Allowable Load kN (kgf): 42.17 (4,300)
Approx. Weight (kg/m): 6.94
Links of KCM JIS & 1 unit: 80
KCM 100LL
Pitch P: 31.75
Width between Inner Plates W: 19.05
Roller Dia.D: 19.05
Pin: Dia.d: 9.54
B: 23.17
L1: 40.45
L2: 43.40
Link Plate: Thickness T: 4.0 Thickness t: 30.0 Height H: 25.8
Ave. Tensile Strength kN (kgf): 127.5 (13,000)
Max. Allowable Load kN (kgf): 30.40 (3,100)
Approx. Weight (kg/m): 4.26
Links of KCM JIS & 1 unit: 96
KCM 120LL
Pitch P: 38.10
Width between Inner Plates W: 25.40
Roller Dia.D: 22.23
Pin: Dia.d: 11.11
B: 28.62
L1: 50.45
L2: 53.85
Link Plate: Thickness T: 4.8 Thickness t: 36.0 Height H: 31.0
Ave. Tensile Strength kN (kgf): 191.2 (19,500)
Max. Allowable Load kN (kgf): 39.23 (4,000)
Approx. Weight (kg/m): 6.30
Links of KCM JIS & 1 unit: 80
KCM 100HLL
Pitch P: 31.75
Width between Inner Plates W: 19.05
Roller Dia.D: 19.05
Pin: Dia.d: 9.54
B: 24.67
L1: 43.45
L2: 46.40
Link Plate: Thickness T: 4.8 Thickness t: 30.0 Height H: 25.8
Ave. Tensile Strength kN (kgf): 147.1 (15,000)
Max. Allowable Load kN (kgf): 32.36 (3,300)
Approx. Weight (kg/m): 4.88
Links of KCM JIS & 1 unit: 96
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