GEAR (20 Teeth) 7K7238 - Caterpillar

Rotation of drive gear (as seen from drive end) ... Clockwise (1) Length of gears (new) ... 54.000 0.015 mm (2.1260 .0006 in.) Depth of bores for gears (new) ... 54.150 0.020 mm (2.1319 .0008 in.)(2) Diameter of gear shafts (new) ... 31.742 0.008 mm (1.2497 .0003 in.) Bore in bearings for gear shafts (after assembly) ... 31.811 0.013 mm (1.2524 .0005 in.)(3) Distance dowels extend from cover ... 6.0 0.5 mm (.24 .02 in.)(4) Distance from the end of the idler shafts to gear faces ... 34.0 0.5 mm (1.34 .02 in.)(5) Distance from the end of the drive shaft to gear face ... 47.0 0.5 mm (1.85 .02 in.)(6) Depth that bearings are installed in cover ... 1.5 0.5 mm (.06 .02 in.)(7) Depth that bearings are installed in housing ... 1.5 0.5 mm (.06 .02 in.) (8) The location of each bearing junction must be as shown. Position bearing junctions from the centerline through the bearing bores to an angle of ... 45 15° (9) 2S2760 Spring (oil pressure relief): Length under test force ... 117.9 mm (4.64 in.)Test force ... 490 27 N (110 6 lb.)Free length after test ... 152.9 mm (6.02 in.)Outside diameter ... 27.00 mm (1.063 in.)