Bushings for Rotating Bushing Track
Caliper Ultrasonic Depth Gauge
Inches (mm) % Worn Inches (mm) Inches (mm)
2.39 (60.7) 0 0.47 (11.9) 2.96 (75.2)
2.37 (60.2) 4 0.46 (11.7) 2.95 (74.9)
2.35 (59.7) 8 0.45 (11.4) 2.94 (74.7)
2.33 (59.2) 12 0.44 (11.2) 2.93 (74.4)
2.31 (58.7) 16 0.43 (10.9) 2.92 (74.2)
2.29 (58.2) 20 0.42 (10.7) 2.91 (73.9)
2.27 (57.7) 24 0.41 (10.4) 2.90 (73.7)
2.25 (57.2) 28 0.40 (10.2) 2.89 (73.4)
2.23 (56.6) 32 0.39 (9.9) 2.88 (73.2)
2.21 (56.1) 36 0.38 (9.7) 2.87 (72.9)
2.19 (55.6) 40 0.37 (9.4) 2.86 (72.6)
2.17 (55.1) 44 0.36 (9.1) 2.85 (72.4)
2.15 (54.6) 48 0.35 (8.9) 2.84 (72.1)
2.13 (54.1) 52 0.34 (8.6) 2.83 (71.9)
2.11 (53.6) 56 0.33 (8.4) 2.82 (71.6)
2.09 (53.1) 58 0.32 (8.1) 2.81 (71.4)
2.07 (52.6) 60 0.31 (7.9) 2.80 (71.1)
2.05 (52.1) 62 0.30 (7.6) 2.79 (70.9)
2.03 (51.6) 64 0.29 (7.4) 2.78 (70.6)
2.01 (51.1) 66 0.28 (7.1) 2.77 (70.4)
1.99 (50.5) 68 0.27 (6.9) 2.76 (70.1)
1.97 (50.0) 70 0.26 (6.6) 2.75 (69.9)
1.95 (49.5) 72 0.25 (6.3) 2.74 (69.6)
1.93 (49.0) 74 0.24 (6.1) 2.73 (69.3)
1.91 (48.5) 76 0.23 (5.8) 2.72 (69.1)
1.89 (48.0) 78 0.22 (5.6) 2.71 (68.8)
1.87 (47.5) 80 0.21 (5.3) 2.70 (68.6)
1.85 (47.0) 82 0.20 (5.1) 2.69 (68.3)
1.83 (46.5) 84 0.19 (4.8) 2.68 (68.1)
1.81 (46.0) 86 0.18 (4.6) 2.67 (67.8)
1.79 (45.5) 88 0.17 (4.3) 2.66 (67.6)
1.77 (45.0) 90 0.16 (4.1) 2.65 (67.3)
1.75 (44.5) 92 0.15 (3.8) 2.64 (67.1)
1.73 (43.9) 94 0.14 (3.6) 2.63 (66.8)
1.71 (43.4) 96 0.13 (3.3) 2.62 (66.5)
1.69 (42.9) 98 0.12 (3.0) 2.61 (66.3)
1.67 (42.4) 100 0.11 (2.8) 2.60 (66.0)
1.65 (41.9) 102 0.10 (2.5) 2.59 (65.8)
1.63 (41.4) 104 0.09 (2.3) 2.58 (65.5)
1.61 (40.9) 106 0.08 (2.0) 2.57 (65.3)
1.59 (40.4) 108 0.07 (1.8) 2.56 (65.0)
1.57 (39.9) 110 0.06 (1.5) 2.55 (64.8)
1.55 (39.4) 112 0.05 (1.3) 2.54 (64.5)
1.53 (38.9) 114 0.04 (1.0) 2.53 (64.3)
1.51 (38.4) 116 0.03 (0.8) 2.52 (64.0)
1.49 (37.8) 118 0.02 (0.5) 2.51 (63.8)
1.47 (37.3) 120 0.01 (0.3) 2.50 (63.5)
Undercarriage Code: 1108, 111, 1121, 1122, 1208, 121, 124, 125, 1251, 128, 129, 1291
113
D4H, D5M, D5N, 561H, 561M, 561N — 6.75" (171.5 mm)
Elevated Sprocket Machines