Metric

mm

Imperial

inches

A

Track Gauge

63.5

2.500

2 1/2”

B

Over Check Rails

56.5

2.218

2 7/32”

C

Flangeway

3.5

0.140

9/64”

D

Wheel Back to Back

58.00

2.281

2 9/32”

E1

Flange Depth (Solid Axle Boxes)

2.3

0.094

3/32”

E2

Flange Depth (Sprung Axle Boxes)

2.0

0.080

5/64”

F

Flange Thickness

1.6

0.063

1/16”

G

Wheel Width (Minimum)

6.8

0.268

17/64”

H

Over Wheel Bosses

76.2

3.00

3”

J

Journal Length

8.0

0.313

5/16”

K

Journal Diameter

4.0

0.156

5/32”

X

Cone Angle

3 degrees

Y

Flange Angle (Each Side)

10 degrees