Track Rollers
Caliper Depth Gauge Ultrasonic
Inches (mm) % Worn Inches (mm) Inches (mm)
9.56 (243.0) 0 0.87 (22.0) 2.40 (61.0)
9.52 (242.0) 5 0.89 (22.5) 2.38 (60.5)
9.48 (241.0) 10 0.91 (23.0) 2.36 (59.9)
9.44 (240.0) 15 0.93 (23.5) 2.34 (59.4)
9.40 (239.0) 20 0.95 (24.0) 2.32 (58.9)
9.36 (237.5) 25 0.97 (24.5) 2.30 (58.4)
9.32 (236.5) 30 0.99 (25.0) 2.28 (57.9)
9.28 (235.5) 35 1.01 (25.5) 2.26 (57.4)
9.24 (234.5) 40 1.03 (26.0) 2.24 (56.9)
9.20 (233.5) 45 1.05 (26.5) 2.22 (56.4)
9.16 (232.5) 50 1.07 (27.0) 2.20 (55.9)
9.12 (231.5) 55 1.09 (27.5) 2.18 (55.4)
9.08 (230.5) 60 1.11 (28.0) 2.16 (54.9)
9.04 (229.5) 64 1.13 (28.5) 2.14 (54.4)
9.00 (228.5) 67 1.15 (29.0) 2.12 (53.8)
8.96 (227.5) 70 1.17 (29.5) 2.10 (53.3)
8.92 (226.5) 73 1.19 (30.0) 2.08 (52.8)
8.88 (225.5) 76 1.21 (30.5) 2.06 (52.3)
8.84 (224.5) 79 1.23 (31.0) 2.04 (51.8)
8.80 (223.5) 82 1.25 (32.0) 2.02 (51.3)
8.76 (222.5) 85 1.27 (32.5) 2.00 (50.8)
8.72 (221.5) 88 1.29 (33.0) 1.98 (50.3)
8.68 (220.5) 91 1.31 (33.5) 1.96 (49.8)
8.64 (219.5) 94 1.33 (34.0) 1.94 (49.3)
8.60 (218.5) 97 1.35 (34.5) 1.92 (48.8)
8.56 (217.5) 100 1.37 (35.0) 1.90 (48.3)
8.52 (216.5) 103 1.39 (35.5) 1.88 (47.8)
8.48 (215.5) 106 1.41 (36.0) 1.86 (47.2)
8.44 (214.5) 109 1.43 (36.5) 1.84 (46.7)
8.40 (213.5) 112 1.45 (37.0) 1.82 (46.2)
8.36 (212.5) 115 1.47 (37.5) 1.80 (45.7)
8.32 (211.5) 118 1.49 (38.0) 1.78 (45.2)
8.28 (210.5) 121 1.51 (38.5) 1.76 (44.7)
Flange diameter is 11.31" (287 mm)
Undercarriage Code: 490
709
245 — 9.00" (228.6 mm)
Excavators