Caster-Part-Number-Naming-System

Wheel Diameter

02 2″
03 3″
04 4″
05 5″
06 6″
08 8″

Mounting Type

P Swivel top plate
F Fixed top plate
G Grip ring stem
T Threaded stem
E  Expanding stem
S Square stem
R Round stem
H Hollow kingpin

Tread Width

1 3/4″
2 1″
3 1 1/4″
4 1 1/2″
5 2″

Wheel Material

Y Nylon
P Polypropylene (PP)
U Polyurethane (PU)
R Thermoplastic Rubber (TPR)
C PVC
S Rubber
T Rubber cast iron core
K Polyurethane cast iron core
Z Cast iron

Wheel Bearing

A Plain bore
B Sleeve (Bushing
D Delrin
E Precision dual ball
F Precision ball
G Roller (Needle)

Brake Type

0 No brake
1 Side lock brake
2 Top lock brake
3 Total steel lock brake
4 Total plastic lock brake
5 Swivel brake (Position brake)
6 Tread lock brake