FAG SNV Plummer Blocks - Reliance Bearing

Lubrication
Grease valves
For high-speed operation, e.g. with fan
bearing arrangements, FAG supply RSV
grease valves upon request, fig. 7.
Grease valves for SNV housings of design
G944A* must be listed separately in
the order. RSV5 or RSV6 grease valves
are used for bearings with adapter sleeves
while RSV2 or RSV3 valves are used for
bearings with cylindrical bore.
7: RSV grease valve
Oil lubrication
The SNV housings are designed for
both oil sump and circulation oil lubrication.
The housings are spacious with oil
collecting pockets in the base, oil inlet
and outlet holes, holes for connecting oil
level gauges and temperature sensors.
Connection dimensions fig. 8.
In the case of oil sump lubrication a
minimum oil level must be maintained
(h3 dimension in fig. 8). If FAG two-lip
seals are used, a certain leakage must be
taken into account. Leakage is inevitable
with split seals and with seals which are
not spring-preloaded. To keep the leakage
rate down, the seal contact surface on the
shaft should have the following quality:
hardness at least 55 HRC,
ground twist-free with R a = 0.2 µm to
max. 0.5 µm.
b
RSV5
RSV6
RSV2
RSV3
The joint between housing top and
base must be sealed with a thin layer of a
commercial sealing compound (permanent
elasticity). In the case of housings
closed at one end, the groove bottom
must also be filled with the sealing compound.
Technically-speaking, an oil-proof design
is only possible with a spring-preloaded,
unsplit radial shaft seal. Please
note: the housing must be ventilated in
the case of oil sump lubrication (e.g. closing
the inlet hole with a ventilation plug).
Please contact the FAG advisory service
about design and availability.
Grease valve Width Grease valve Width
b
FAG mm FAG mm
RSV205 to 211 8 RSV305 to 308 8
RSV212 to 218 10 RSV309 to 313 10
RSV219 to 222 13 RSV314 to 316 13
RSV224 to 232 15 RSV317 to 322 15
RSV324 to 332 16
b
FAG · 10