STRUCTURE, FUNCTION, & MAINTENANCE STANDARD CARRIER ROLLER 12 CARRIER ROLLER Unit: mm 10-18 PC210/240-7K No. Check item Criteria Remedy 1 Outside diameter of flange Standard size Repair limit Replace 145 — 2 Outside diameter of tread 120 106 3 Width of tread 43 — 4 Thickness of tread 36.5 29.5 5 Width of flange 14 — 6 Interference between shaft and bushing Standard size Tolerance Standard inter- ference Interference limit Shaft Hole 40 -0.179 -0.190 +0.284 +0.169 0.339 - 0.474 — 7 Interference between roller and bushing 47 -0.061 -0.036 0 -0.040 0.036 - 0.101 — 8 Axial clearance of roller Standard clearance Clearance limit 0.44 - 0.76 —