ROLLON manufacturers Special Spherical Bearings for
Nuclear Power Plants. The co-efficient of friction
of these Special Spherical Bearings shall be below
0.1µ and the working temperature up to 600° C.
ROLLON Special Spherical Bearings are used for
supporting the Steam Generator Guide supports at
Steam nozzle location in Nuclear Power Plants. These
special bearings support steam nozzle against loads
during normal operating conditions, earthquake and /
or pipe rupture events. The Special Spherical
Bearings are manufactured with housing in stainless
steel and a spherical ball in special alloy bronze
fixed with solid lubricant. This arrangement permits
free diametrical expansion of steam nozzle, free
vertical upward thermal expansion and tilting of
Steam Generator and to transfer the loads from Steam
generator to supporting structure.
The solid lubricant used has very low
co-efficient of friction, less than 0.1µ.
The solid lubricant is suitable for high
operating temperature, 600° C.
Bearing is suitable for maximum load of 34
N/mm˛.
Chemicals & weather has no effect on the
solid lubricant.
The Special Spherical Bearings are manufactured to
meet the stringent quality requirement of M/s.
Nuclear Power Corporation of India. Bearings have
been designed and tested for loads up to 375 MT
without any failure or defects.
ROLLON also manufacturers in their state of the art
manufacturing facility at Bangalore Sliding Bearing
Pads. ROLLON Sliding Bearing Pads are used for
Primary Heat Transfer system in a Nuclear Power
Plant to eliminate damage at the supporting
structure due to thermal expansion. ROLLON Bearing
pads permit unrestricted movement due to temperature
changes or any other external forces at the free
end.
ROLLON manufacturers Rocker Washer Assemblies used as supports for Hanger Rods of Primary Coolant Pumps. The function of the assembly is
to allow free movement at very low coefficient of friction of the primary coolant pump along X and Z-axis. The movement is caused by the thermal expansion of the Steam generator – primary coolant pump piping.
Rocker Washer assembly shall allow for 6° vertical movement of the hanger road supporting the Primary Coolant Pump under 40 MT load. .
The solid lubricant used has very low co-efficient of
friction, less than 0.1µ.
The solid lubricant is suitable for high operating
temperature, 600° C.
Bearing is suitable for maximum load of 34 N/mm˛.
Chemicals & weather has no effect on the solid
lubricant.
