103 Series Car Dimensions

Ref

mm

in

Remarks

 Shell overall length

A

44

1.73

less couplers

Truck spacing

B

31

1.22

approximate

Axle spacing

C

4.5

0.18

Railhead to top of roof

D

8.5

0.33

less roof details

Shell overall height

E

6.1

0.24

less roof details

Shell overall width

—

6.7

0.26

Gearbox length

F

15.6

0.61

Gearbox width

—

5.5

0.22

Gearbox height

G

4.5

0.18

Motor length

H

8.5

0.33

less shaft and gear

Motor diameter

J

4.1

0.16

less connectors

Drive train overall length

K

24.5

0.96

approximate

Wheel Dimensions

Ref

mm

in

Remarks

Axle length overall

A

4.15

0.163

average

Wheel gauge

B

2.8

0.11

average

Inside flange-to-flange

C

2.25

0.089

average

Wheel tread

D

0.55

0.022

average

Wheel overall width

E

0.95

0.037

average

Wheel flange diameter

F

2.5

0.098

average

Wheel tread diameter

G

2.0

0.079

average

Flange depth

H

0.25

0.01

nominal

Track Dimensions

Ref

mm

in

Remarks

Gauge

A

3.2

0.12

average*

Rail width

B

0.60

0.024

at head, average*

Rail height

C

1.0

0.04

Roadbed overall width

D

12.5

0.5

average

Roadbed overall height

E

3.55

0.14

average

Parallel track spacing

—

12.5

0.5

Small curve radius

—

120

4.72

Medium curve radius

—

132.5

5.22

Large curve radius

—

145

5.7

Long straight length

—

60

2.36

Short straight length

—

30

2.36

Flex length

—

1000

39.4