MIO-R290GM2011 Rev E
G&B Specialties Inc. 535 West 3
rd
Street, Berwick, PA, USA Tel: (570) 752-5901 Fax: (570) 752-6397
US Field Service: 570-441-6988; CAN Field Service 570-854-0482; www.rafna.com
-107-
W
HEEL
W
EAR
S
TANDARDS AND
R
ECOMMENDATIONS
At the present time, G&B produces 8”, 10”, 12”, 14”, and 16” steel wheels. Each size has a
different flange and tread thickness, which dictates the allowable wear. Although the
following numbers are recommended limits, risk of failure is increased when not followed.
Rail gauge can be supplied by G&B Specialties for 8”, 10”, 12”, 14”, and 16” rail wheels.
They are used as go/no go gauges. When placed on rail wheels they will indicate how much
wear is still permissible or if the rail wheels need to be replaced.
The gauge for the R-290 model railgear can be ordered using the following part
number; S-001200
Rail wheel failure can result in equipment damage or failure, personal injury or
death.
Flange Wear Limits:
The maximum flange wear is indicated on the rail wheel gauge. When the gauge is placed on
the rail wheel, if a gap is seen between the gauge and the maximum flange wear line, the rail
wheel needs to be replaced.
Tread Wear Limits:
For tread wear, use the following chart in conjunction with the appropriate rail wheel gauge.
N
OMINAL
R
AIL
W
HEEL
D
IAMETER
(
INCHES
)
M
IN
.
A
LLOWABLE
W
HEEL
D
IAMETER
(
INCHES
)
10 9
3/4
RAFNA WHEEL WEAR GAUGE - 8"- 10" WHEEL
