STRUCTURE, FUNCTION, & MAINTENANCE STANDARD TRACK ROLLER 12 TRACK ROLLER Unit: mm PC210/240-7K 10-19 No. Check item Criteria Remedy 1 Outside diameter of flange Standard size Repair limit Rebuild or replace 188 — 2 Outside diameter of tread 156 144 3 Thickness of tread 44.5 38.5 4 Overall width 225 — 5 Inside width 85 — 6 Width of tread 44.5 — 7 Width of flange 25.5 — 8 Clearance between shaft and bushing Standard size Tolerance Shaft Hole Standard clearance Clearance limit Replace bushing 60 -0.215 -0.315 +0.195 0 0.215 - 0.510 1.5 9 Interference between roller and bushing Standard size Tolerance Shaft Hole Standard inter- ference Interference limit 67 -0.153 -0.053 +0.030 0 0.023 - 0.153 —