Bushings for Heavy Duty Track
Use on 527 with Optional Large Diameter Bushing
Allowable Wear
Caliper Lesser Greater Ultrasonic Depth Gauge
Inches (mm) % Worn % Worn Inches (mm) Inches (mm)
3.15 (80.0) 0 0 0.68 (17.3) 3.70 (94.0)
3.13 (79.5) 6 5 0.66 (16.8) 3.68 (93.5)
3.11 (79.0) 12 10 0.64 (16.3) 3.66 (93.0)
3.09 (78.5) 18 15 0.62 (15.7) 3.64 (92.5)
3.07 (78.0) 24 20 0.60 (15.2) 3.62 (91.9)
3.05 (77.5) 30 25 0.58 (14.7) 3.60 (91.4)
3.03 (77.0) 36 30 0.56 (14.2) 3.58 (90.9)
3.01 (76.5) 40 35 0.54 (13.7) 3.56 (90.4)
2.99 (75.9) 44 40 0.52 (13.2) 3.54 (89.9)
2.97 (75.4) 48 45 0.50 (12.7) 3.52 (89.4)
2.95 (74.9) 52 49 0.48 (12.2) 3.50 (88.9)
2.93 (74.4) 56 52 0.46 (11.7) 3.48 (88.4)
2.91 (73.9) 60 55 0.44 (11.2) 3.46 (87.9)
2.89 (73.4) 64 58 0.42 (10.7) 3.44 (87.4)
2.87 (72.9) 68 61 0.40 (10.2) 3.42 (86.9)
2.85 (72.4) 72 64 0.38 (9.7) 3.40 (86.4)
2.83 (71.9) 76 67 0.36 (9.1) 3.38 (85.9)
2.81 (71.4) 80 70 0.34 (8.6) 3.36 (85.3)
2.79 (70.9) 84 73 0.32 (8.1) 3.34 (84.8)
2.77 (70.4) 88 76 0.30 (7.6) 3.32 (84.3)
2.75 (69.9) 92 79 0.28 (7.1) 3.30 (83.8)
2.73 (69.3) 96 82 0.26 (6.6) 3.28 (83.3)
2.71 (68.8) 100 85 0.24 (6.1) 3.26 (82.8)
2.69 (68.3) 104 88 0.22 (5.6) 3.24 (82.3)
2.67 (67.8) 108 91 0.20 (5.1) 3.22 (81.8)
2.65 (67.3) 112 94 0.18 (4.6) 3.20 (81.3)
2.63 (66.8) 116 97 0.16 (4.1) 3.18 (80.8)
2.61 (66.3) 120 100 0.14 (3.6) 3.16 (80.3)
2.59 (65.8) 103 0.12 (3.0) 3.14 (79.8)
2.57 (65.3) 106 0.10 (2.5) 3.12 (79.2)
2.55 (64.8) 109 0.08 (2.0) 3.10 (78.7)
2.53 (64.3) 112 0.06 (1.5) 3.08 (78.2)
2.51 (63.8) 115 0.04 (1.0) 3.06 (77.7)
2.49 (63.2) 118 0.02 (0.5) 3.04 (77.2)
2.47 (62.7) 121 0.00 (0.0) 3.02 (76.7)
NOTE: DO NOT USE DEPTH GAUGE UNTIL BUSHINGS HAVE BEEN “TURNED.”
Undercarriage Code: 2901
151
D6H, D6R, 527R — 8.00" (203.2 mm)
Elevated Sprocket Machines