Track Rollers
9W Rim
Caliper Depth Gauge Ultrasonic
Inches (mm) % Worn Inches (mm) Inches (mm)
6.14 (156.0) 0 0.86 (22.0) 1.55 (39.4)
6.10 (155.0) 8 0.88 (22.5) 1.53 (38.9)
6.06 (154.0) 16 0.90 (23.0) 1.51 (38.4)
6.02 (153.0) 23 0.92 (23.5) 1.49 (37.8)
5.98 (152.0) 30 0.94 (24.0) 1.47 (37.3)
5.94 (151.0) 37 0.96 (24.5) 1.45 (36.8)
5.90 (150.0) 44 0.98 (25.0) 1.43 (36.3)
5.86 (149.0) 51 1.00 (25.5) 1.41 (35.8)
5.82 (148.0) 58 1.02 (26.0) 1.39 (35.3)
5.78 (147.0) 65 1.04 (26.5) 1.37 (34.8)
5.74 (146.0) 72 1.06 (27.0) 1.35 (34.3)
5.70 (145.0) 79 1.08 (27.5) 1.33 (33.8)
5.66 (144.0) 86 1.10 (28.0) 1.31 (33.3)
5.62 (142.5) 93 1.12 (28.5) 1.29 (32.8)
5.58 (141.5) 100 1.14 (29.0) 1.27 (32.3)
5.54 (140.5) 107 1.16 (29.5) 1.25 (31.8)
5.50 (139.5) 114 1.18 (30.0) 1.23 (31.2)
5.46 (138.5) 121 1.20 (30.5) 1.21 (30.7)
Flange diameter is 7.87" (200 mm)
Undercarriage Code: 434, 440, 442, 445, 453, 454
643
225, 219, 215 S.A., FB221, FB217, DL221 — 7.50" (190 mm) & 6.91" (175.5 mm)
Excavators