TP50-160/2 Shaft Seals Manual

4
Type designation
Shaft seals
Standard codes for material versions Example of complete shaft seal type designation
Pos. Code Material
(1) and
(2)
A
Synthetic carbon
Carbon, metal-impregnated
B Carbon, resin-impregnated
C Other carbons
D
Metals
Carbon steel
E Chromium steel
F Chromuim-nickel (CrNi) steel
G
Chromium-nickel-molybdenum
(CrNiMo) steel
H Metals with carbide coatings
K Hard-coating, metallic
M High-nickel alloy
NBronze
P Grey cast iron
R Alloyed grey cast iron
S Cast chromium steel
T Other metals
U1
Carbides
Tungsten carbide, Co-bonded
U2 Tungsten carbide, Ni-bonded
U3
Tungsten carbide, CrNiMo-
bonded
Q1 Silicon carbide (SiC)
Q2 SiC-Si
Q3 SiC-C-Si, composite
Q4 C-SiC, surface-siliconised
J Other carbides
V
Metal oxides
Aluminium oxide
W Chromium oxide
X Other metal oxides
Y1
Plastics
PTFE, glass-fibre reinforced
Y2 PTFE, carbon reinforced
Z Other plastics
(3)
B
Elastomers, not
sheathed
Butyl rubber (IIR)
E
Ethylene propylene rubber
(EPDM)
K Perfluoro rubber (FFKM)
N Chloroprene rubber (CR)
P Nitrile rubber (NBR)
S Silicon rubber (MVQ)
V Fluoro rubber (FPM)
X Other elastomers
M
Elastomers,
sheathed
Elastomers/PTFE-sheathed
G
Non-elastomers
Graphite
TPTFE
Y Other non-elastomers
U
Various materi-
als
Various materials for flexible
elements
(4)
and
(5)
D
Steel
Carbon steel
E Chromium (Cr)steel
F Chromium-nickel (CrNi) steel
G
Chromium-nickel-molybdenum
(CrNiMo) steel
M
Alloy
High-nickel alloy
N Copper-tin alloy (bronze)
T Other materials
Example N U 012 S 0 - U B E G G
Standard assembly length
Unbalanced
Shaft diameter, 12 mm
Capability of rotation in
either direction
Without retention against rotation
of the stationary seat
Tungsten carbide rotating
seal face
Resin-impregnated carbon
stationary seat
EPDM secondary seal
CrNiMo-steel spring
All other CrNiMo-steel
components