Designation system

The complete designation for a Y-bearing or a Y-bearing unit consists of a basic designation with or without one prefix and/or one or more suffixes.

For details about Y-bearing designation system, refer to Y-bearings.

Y-bearing plummer block units

Designation examples and the applicable options for Y-bearing plummer block units are given below.
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Examples


Metric unit:
SYK 20 TD
whereSY =
K =
20 =
TD =

Inch unit:
SY 2 11/16 LF/AH
whereSY =
2 11/16 =
LF
AH =

Applicable options for Y-bearing plummer block units

Housing/unit type

J stands for dimensions in accordance with JIS 1559-2009 for normal base plummer block housings
PPlummer block housing, pressed steel
P .. R-
Plummer block housing, pressed steel, rubber seating ring included
SYPlummer block housing, normal base
SYFPlummer block housing, short base
SYHPlummer block housing, normal base, lower centre height H1
SYMPlummer block housing, normal base, higher load carrying capacity

Housing material
Grey cast iron
KComposite
WK
Composite for SKF Food Line
WR
Stainless steel for SKF Food Line

Size identification
Bearing units for metric shafts: bearing bore uncoded
12
to
100
12 mm
to
100 mm
Bearing units for inch shafts: bearing bore uncoded
1/2
to
3
1/2 in. (12,7 mm)
to
3 in. (76,2 mm)
Housings made of cast iron, composite, composite for SKF Food Line or stainless steel
503
to
520
for Y-bearings of sizes 203, 203-008, 203/12 and 203/15
to
for Y-bearings of size 220
Housings made of pressed steel (not supplied as bearing unit)
40
to
85
40 mm housing bore diameter
to
85 mm housing bore diameter

Additional housing features
A
Next smaller size than normal (inch units only)
L
Suitable for ECL end cover
N

Relubricable execution of composite housing.

In case of SKF Food Line Y-bearing units only used in combination with suffix VZ1A2 (→ )

Y
Suitable for ECW end cover
Z
Short base unit with inch thread

Inserted Y-bearing
FMY-bearing with an eccentric locking collar, YET 2 series
FESKF E2 Y-bearing with an eccentric locking collar, E2.YET 2 series
KFY-bearing with a tapered bore on an adapter sleeve, YSA 2-2FK series
LD, LDW
Y-bearing with SKF ConCentra locking, YSPAG 2 series
LEFSKF E2 Y-bearing with SKF ConCentra locking, E2.YSP 2-2F series
LF
Y-bearing with SKF ConCentra locking, YSP 2-2F series
RMY-bearing with grub screws, YAT 2 series
TA
SKF Food Line Y-bearing with grub screws, YAR 2-2RF/VE495 series
TD, TDW
Y-bearing with grub screws, YARAG 2 series
TEFSKF E2 Y-bearing with grub screws, E2.YAR 2-2F series
TF
Y-bearing with grub screws, YAR 2-2F series
TH
SKF Food Line Y-bearing with grub screws, YAR 2-2RF/HV series
THR
SKF Food Line Y-bearing with grub screws, YAR 2-2RFGR/HV series
TR
Y-bearing with grub screws, YAR 2-2RF series
WD, WDW
Y-bearing with an eccentric locking collar, YELAG 2 series
WFY-bearing with an eccentric locking collar, YEL 2-2F series

Suffixes - other features
AHY-unit for air-handling application
VZ1A2
Relubricable execution of SKF Food Line Y-bearing unit with composite housing, only used in combination with suffix N (→ ).
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