caster wheels have gray non-marking injection molded thermoplastic rubber tires
chemically bonded to a polyolefin ( industrial plastic ) center. They are
popular on equipment in Pharmaceutical Laboratories, Hospitals, Food Service
and other Institutional applications. These caster wheels provide a softer ride
than polyurethane and yet withstand exposure to many chemicals and solvents.
They can be used in industrial applications which do not involve shock,
overloading, abuse, obstructions, poor floors or storage (standing) loads.
Wheels with RH prefix have a slightly higher capacity than our other gray soft
Soft rubber provides more desirable operating
characteristics than any other wheel material. These gray soft rubber wheels
are non-marking, quiet, absorb shock (prolonging equipment life and protecting
cargo), can roll over small objects, protects costly floor surfaces, and
minimizes vibration. They fall short of perfection in their limitation under
load - they do not roll easily. Load capacity ratings do not take into account
the effort required to manually move a load (drawbar pull measured in pounds).
If cargo is to be moved manually on these gray soft rubber caster wheels,
reduce capacity ratings by 50% and select the largest practical wheel diameter.
These caster wheels should not be left standing under load for extended periods
as the tires may take a permanent "set" or develop flat spots. They can be used
on almost any dry factory floor. The bonding agent which holds the rubber tire
to its polyolefin center can be affected by exposure to some chemicals, impact,
overloading, and the buildup of heat.
|R = Roller Bearing, B = Ball
Bearings, PS = Precision Sealed Ball Bearings
D = Delrin Bearings, P = Plain
Bore, G = Graphite Bushing
Wheels with RF & RD prefix
are 75A ± 5 Durometer.
Wheels with RH & RQ prefix
are 65A ± 5 Durometer.