Track Roller - Komatsu PC210-8 Shop Manual

10 Structure, function and maintenance standard

Track roller

PC210/240-8
No. Check item
1 Outside diameter of flange
2 Outside diameter of tread
3 Thickness of tread
4 Total width
5 Width of tread
6 Width of flange
Clearance between shaft and
7
bushing
Interference between roller and
8
bushing
Clearance between bushing
9 and collar (Sum of clearance at
both sides)
PC210, 230, 240-8
Standard size
188
156
44.5
225
44.5
25.5
Tolerance
Standard
size
Shaft
–0.215
60
–0.315
Tolerance
Standard
size
Shaft
+0.153
67
+0.053
Standard clearance
0.5 – 1.0
Criteria
Repair limit
—
144
38.5
—
—
—
Standard Clearance
clearance
Hole
+0.195 0.215 –
–0.000 0.510
Standard
interfer-
ence limit
Hole
ence
+0.030 0.023 –
–0.000 0.153
Clearance limit
—
UEN00098-00
Unit: mm
Remedy
Build-up welding
or replace
limit
—
Replace bushing
Interfer-
—
Replace
1
7