IBLS Wheel Standards

SWLS Suggested Wheel Dimensions

It’s not MY track. It’s YOUR equipment!

From the “IBLS Wheel Standards” published in the October 1981 issue of Live Steam magazine.

 

Key TG
(Track Gauge)
T
(Tire Width)
W
(Flange Width)
F
(Flange Depth)
R
(Fillet Radius)
B
(Back to Back)
G
(Wheel Gauge)
WC
(Wheel Check)
H*
(Coupler Height)
Prototype 56.500 5.500 1.156 1.125 0.688 53.380 N/A 54.530
1:12 Scaled Prototype 4.708 0.458 0.096 0.094 0.057 4.448   4.544  
1 Inch Scale Standard 4.750
MIN.
0.506
MIN.
0.125
MAX.
0.140
MAX
0.062
+/-.010
4.437
+.020/-0
4.690
+0/-.020
4.562
REF.
2.875
1:8 Scaled Prototype 7.062 0.688 0.144 0.141 0.086 6.672 6.816
1½ Inch Scale Standard for 7½ Inch Gauge 7.500
MIN.
0.750
MIN.
0.156
MAX.
0.187
MAX.
0.094
+/-.015
7.120
+.020/-0
7.440
+0/-.020
7.281
REF.
4.4375

H* – Top of Rail to Center-Line of Coupler.
All Dimensions are in Inches.

Standards for other scales can be found several places. Try these:

http://www.svls.org/ibls.htm

http://www.coloradolivesteamers.com/content/view/16/68/

http://www.geocities.com/jerecorr/iblsstandards/

Tagged with: , ,