|
Rail Weight
|
Maximum Rail Wear - Inches
|
General Rail Use & Rail Condition
|
|
|
Top
|
Gage
|
|
|
Class I
|
|
140
|
1/4
|
1/2
|
|
|
132-131
|
3/16
|
1/2
|
|
|
122
|
5/32
|
7/16
|
Main Line use -Very minor engine
|
|
115
|
1/8
|
3/8
|
burns and corrugation.
|
|
112
|
1/8
|
1/8
|
|
|
100
|
1/8
|
1/8
|
|
|
90
|
1/8
|
1/8
|
|
|
Class II
|
|
140
|
3/8
|
3/4
|
|
|
132-131
|
5/16
|
3/4
|
|
|
122
|
5/16
|
3/4
|
Branch Lines -Small engine burns
|
|
115
|
5/16
|
3/4
|
and corrugation.
|
|
112
|
5/16
|
1/2
|
|
|
100
|
3/16
|
1/4
|
|
|
90
|
1/4
|
3/16
|
|
|
Class III
|
|
140
|
5/8
|
7/8
|
|
|
132-131
|
7/16
|
7/8
|
|
|
122
|
1/2
|
7/8
|
Light Branch Lines - Medium engine
|
|
115
|
3/8
|
3/4
|
burns and corrugation, may be pitted
|
|
112
|
3/8
|
3/4
|
and show some oxidation.
|
|
100
|
1/4
|
1/4
|
|
|
90
|
5/16
|
3/16
|
|
|
Class IV
|
|
140
|
3/4
|
1
|
|
|
132-131
|
9/16
|
1
|
|
|
122
|
11/16
|
1
|
Yards - Any burns not mashed or
|
|
115
|
1/2
|
7/8
|
fractured.
|
|
112
|
1/2
|
7/8
|
|
|
100
|
7/16
|
7/8
|
|
|
90
|
3/8
|
3/8
|
|
Taken from the A.R.E.A. manual for railway engineering. 4-2-60
|
|
|