Track Rollers
Single Flange
Standard Roller
Caliper Depth Gauge Ultrasonic
Inches (mm) % Worn Inches (mm) Inches (mm)
11.30 (287.0) 0 0.67 (17.0) 2.83 (71.9)
11.20 (284.5) 4 0.72 (18.5) 2.78 (70.6)
11.10 (282.0) 8 0.77 (19.5) 2.73 (69.3)
11.00 (279.5) 12 0.82 (21.0) 2.68 (68.1)
10.90 (277.0) 16 0.87 (22.0) 2.63 (66.8)
10.80 (274.5) 20 0.92 (23.5) 2.58 (65.5)
10.70 (272.0) 24 0.97 (24.5) 2.53 (64.3)
10.60 (269.0) 28 1.02 (26.0) 2.48 (63.0)
10.50 (266.5) 32 1.07 (27.0) 2.43 (61.7)
10.40 (264.0) 36 1.12 (28.5) 2.38 (60.5)
10.30 (261.5) 40 1.17 (29.5) 2.33 (59.2)
10.20 (259.0) 44 1.22 (31.0) 2.28 (57.9)
10.10 (256.5) 48 1.27 (32.5) 2.23 (56.6)
10.00 (254.0) 52 1.32 (33.5) 2.18 (55.4)
9.90 (251.5) 56 1.37 (35.0) 2.13 (54.1)
9.80 (249.0) 60 1.42 (36.0) 2.08 (52.8)
9.70 (246.5) 64 1.47 (37.5) 2.03 (51.6)
9.60 (244.0) 68 1.52 (38.5) 1.98 (50.3)
9.50 (241.5) 72 1.57 (40.0) 1.93 (49.0)
9.40 (239.0) 76 1.62 (41.0) 1.88 (47.8)
9.30 (236.0) 80 1.67 (42.5) 1.83 (46.5)
9.20 (233.5) 84 1.72 (43.5) 1.78 (45.2)
9.10 (231.0) 88 1.77 (45.0) 1.73 (43.9)
9.00 (228.5) 92 1.82 (46.0) 1.68 (42.7)
8.90 (226.0) 94 1.87 (47.5) 1.63 (41.4)
8.80 (223.5) 96 1.92 (49.0) 1.58 (40.1)
8.70 (221.0) 98 1.97 (50.0) 1.53 (38.9)
8.60 (218.5) 100 2.02 (51.5) 1.48 (37.6)
8.50 (216.0) 102 2.07 (52.5) 1.43 (36.3)
8.40 (213.5) 104 2.12 (54.0) 1.38 (35.1)
8.30 (211.0) 106 2.17 (55.0) 1.33 (33.8)
8.20 (208.5) 108 2.22 (56.5) 1.28 (32.5)
8.10 (205.5) 110 2.27 (57.5) 1.23 (31.2)
8.00 (203.0) 112 2.32 (59.0) 1.18 (30.0)
7.90 (200.5) 114 2.37 (60.0) 1.13 (28.7)
7.80 (198.0) 116 2.42 (61.5) 1.08 (27.4)
7.70 (195.5) 118 2.47 (62.5) 1.03 (26.2)
7.60 (193.0) 120 2.52 (64.0) 0.98 (24.9)
Flange diameter is 12.64" (321 mm)
Undercarriage Code: 220, 221
242
D11N, D11R — 12.50" (317.5 mm)
Elevated Sprocket Machines