Idlers
Depth Gauge Ultrasonic Center Flange Wear
Inches (mm) % Worn Inches (mm) Inches (mm)
0.88 (22.5) 0 0.42 (10.7) 0.00 (0.0)
0.90 (23.0) 12 0.40 (10.2) 0.02 (0.5)
0.92 (23.5) 24 0.38 (9.7) 0.04 (1.0)
0.94 (24.0) 36 0.36 (9.1) 0.06 (1.5)
0.96 (24.5) 48 0.34 (8.6) 0.08 (2.0)
0.98 (25.0) 60 0.32 (8.1) 0.10 (2.5)
1.00 (25.5) 72 0.30 (7.6) 0.12 (3.0)
1.02 (26.0) 82 0.28 (7.1) 0.14 (3.5)
1.04 (26.5) 85 0.26 (6.6) 0.16 (4.0)
1.06 (27.0) 88 0.24 (6.1) 0.18 (4.5)
1.08 (27.5) 91 0.22 (5.6) 0.20 (5.0)
1.10 (28.0) 94 0.20 (5.1) 0.22 (5.5)
1.12 (28.5) 97 0.18 (4.6) 0.24 (6.0)
1.14 (29.0) 100 0.16 (4.1) 0.26 (6.5)
1.16 (29.5) 103 0.14 (3.6) 0.28 (7.0)
1.18 (30.0) 106 0.12 (3.0) 0.30 (7.5)
1.20 (30.5) 109 0.10 (2.5) 0.32 (8.0)
1.22 (31.0) 112 0.08 (2.0) 0.34 (8.5)
1.24 (31.5) 115 0.06 (1.5) 0.36 (9.0)
1.26 (32.0) 118 0.04 (1.0) 0.38 (9.5)
1.28 (32.5) 121 0.02 (0.5) 0.40 (10.0)
NOTE: Ultrasonic measurement is to determine
flange wear only.
Undercarriage Code: 1545
407
D6 — 8.00" (203.2 mm)
Cat Classic Undercarriage