Track Rollers
Caliper Depth Gauge Ultrasonic
Inches (mm) % Worn Inches (mm) Inches (mm)
10.00 (254.0) 0 0.87 (22.0) 2.37 (60.2)
9.96 (253.0) 4 0.89 (22.5) 2.35 (59.7)
9.92 (252.0) 8 0.91 (23.0) 2.33 (59.2)
9.88 (251.0) 12 0.93 (23.5) 2.31 (58.7)
9.84 (250.0) 16 0.95 (24.0) 2.29 (58.2)
9.80 (249.0) 20 0.97 (24.5) 2.27 (57.7)
9.76 (248.0) 24 0.99 (25.0) 2.25 (57.2)
9.72 (247.0) 28 1.01 (25.5) 2.23 (56.6)
9.68 (246.0) 32 1.03 (26.0) 2.21 (56.1)
9.64 (245.0) 36 1.05 (26.5) 2.19 (55.6)
9.60 (244.0) 40 1.07 (27.0) 2.17 (55.1)
9.56 (243.0) 44 1.09 (27.5) 2.15 (54.6)
9.52 (242.0) 48 1.11 (28.0) 2.13 (54.1)
9.48 (241.0) 52 1.13 (28.5) 2.11 (53.6)
9.44 (240.0) 56 1.15 (29.0) 2.09 (53.1)
9.40 (239.0) 60 1.17 (29.5) 2.07 (52.6)
9.36 (237.5) 64 1.19 (30.0) 2.05 (52.1)
9.32 (236.5) 68 1.21 (30.5) 2.03 (51.6)
9.28 (235.5) 72 1.23 (31.0) 2.01 (51.1)
9.24 (234.5) 76 1.25 (32.0) 1.99 (50.5)
9.20 (233.5) 80 1.27 (32.5) 1.97 (50.0)
9.16 (232.5) 84 1.29 (33.0) 1.95 (49.5)
9.12 (231.5) 88 1.31 (33.5) 1.93 (49.0)
9.08 (230.5) 92 1.33 (34.0) 1.91 (48.5)
9.04 (229.5) 96 1.35 (34.5) 1.89 (48.0)
9.00 (228.5) 100 1.37 (35.0) 1.87 (47.5)
8.96 (227.5) 102 1.39 (35.5) 1.85 (47.0)
8.92 (226.5) 104 1.41 (36.0) 1.83 (46.5)
8.88 (225.5) 106 1.43 (36.5) 1.81 (46.0)
8.84 (224.5) 108 1.45 (37.0) 1.79 (45.5)
8.80 (223.5) 110 1.47 (37.5) 1.77 (45.0)
8.76 (222.5) 112 1.49 (38.0) 1.75 (44.5)
8.72 (221.5) 114 1.51 (38.5) 1.73 (43.9)
8.68 (220.5) 116 1.53 (39.0) 1.71 (43.4)
8.64 (219.5) 118 1.55 (39.5) 1.69 (42.9)
8.60 (218.5) 120 1.57 (40.0) 1.67 (42.4)
Flange diameter is 11.75" (298.5 mm)
Undercarriage Code: 1755
424
Cat Classic Undercarriage
D8 — 9.00" (228.7 mm)