Bushings for Sealed Track
External Wear
Stepped Bushing
Allowable Wear
Caliper Lesser Greater Ultrasonic
Inches (mm) % Worn % Worn Inches (mm)
1.97 (50.0) 0 0 0.40 (10.2)
1.96 (49.8) 8 6 0.39 (9.9)
1.95 (49.5) 16 12 0.38 (9.7)
1.94 (49.3) 24 18 0.37 (9.4)
1.93 (49.0) 32 24 0.36 (9.1)
1.92 (48.8) 40 30 0.35 (8.9)
1.91 (48.5) 48 36 0.34 (8.6)
1.90 (48.3) 56 42 0.33 (8.4)
1.89 (48.0) 64 48 0.32 (8.1)
1.88 (47.8) 72 54 0.31 (7.9)
1.87 (47.5) 76 60 0.30 (7.6)
1.86 (47.2) 80 64 0.29 (7.4)
1.85 (47.0) 84 67 0.28 (7.1)
1.84 (46.7) 88 70 0.27 (6.9)
1.83 (46.5) 92 73 0.26 (6.6)
1.82 (46.2) 96 76 0.25 (6.4)
1.81 (46.0) 100 79 0.24 (6.1)
1.80 (45.7) 104 82 0.23 (5.8)
1.79 (45.5) 108 85 0.22 (5.6)
1.78 (45.2) 112 88 0.21 (5.3)
1.77 (45.0) 116 91 0.20 (5.1)
1.76 (44.7) 120 94 0.19 (4.8)
1.75 (44.5) 97 0.18 (4.6)
1.74 (44.2) 100 0.17 (4.3)
1.73 (43.9) 103 0.16 (4.1)
1.72 (43.7) 106 0.15 (3.8)
1.71 (43.4) 109 0.14 (3.6)
1.70 (43.2) 112 0.13 (3.3)
1.69 (42.9) 115 0.12 (3.0)
1.68 (42.7) 118 0.11 (2.8)
1.67 (42.4) 121 0.10 (2.5)
Undercarriage Code: 102, 119, 302, 303, 306
265
D3, 931, 933, 935, D4B, D4C — 6.125" (155.6 mm)
Low Sprocket Machines