Idlers
Depth Gauge Ultrasonic Center Flange Wear
Inches (mm) % Worn Inches (mm) Inches (mm)
0.88 (22.5) 0 0.48 (12.2) 0.00 (0.0)
0.90 (23.0) 7 0.46 (11.7) 0.02 (0.5)
0.92 (23.5) 14 0.44 (11.2) 0.04 (1.0)
0.94 (24.0) 21 0.42 (10.7) 0.06 (1.5)
0.96 (24.5) 28 0.40 (10.2) 0.08 (2.0)
0.98 (25.0) 35 0.38 (9.7) 0.10 (2.5)
1.00 (25.5) 42 0.36 (9.1) 0.12 (3.0)
1.02 (26.0) 49 0.34 (8.6) 0.14 (3.5)
1.04 (26.5) 52 0.32 (8.1) 0.16 (4.0)
1.06 (27.0) 55 0.30 (7.6) 0.18 (4.5)
1.08 (27.5) 58 0.28 (7.1) 0.20 (5.0)
1.10 (28.0) 61 0.26 (6.6) 0.22 (5.5)
1.12 (28.5) 64 0.24 (6.1) 0.24 (6.0)
1.14 (29.0) 67 0.22 (5.6) 0.26 (6.5)
1.16 (29.5) 70 0.20 (5.1) 0.28 (7.0)
1.18 (30.0) 73 0.18 (4.6) 0.30 (7.5)
1.20 (30.5) 76 0.16 (4.1) 0.32 (8.0)
1.22 (31.0) 79 0.14 (3.6) 0.34 (8.5)
1.24 (31.5) 82 0.12 (3.0) 0.36 (9.0)
1.26 (32.0) 85 0.10 (2.5) 0.38 (9.5)
1.28 (32.5) 88 0.08 (2.0) 0.40 (10.0)
1.30 (33.0) 91 0.06 (1.5) 0.42 (10.5)
1.32 (33.5) 94 0.04 (1.0) 0.44 (11.0)
1.34 (34.0) 97 0.02 (0.5) 0.46 (11.5)
1.36 (34.5) 100
1.38 (35.0) 103
1.40 (35.5) 106
1.42 (36.0) 109
1.44 (36.5) 112
1.46 (37.0) 115
1.48 (37.5) 118
1.50 (38.0) 121
Flange width: 5.09" (129.3 mm)
Undercarriage Code: 635, 641, 650, 660, 662
580
Excavators
365, 375, 385, 5080, 5090 — 10.25" (260.4 mm)
NOTE: Ultrasonic measurement is to determine flange
wear only. Use ultrasonic only on fabricated idlers.