Sistema de designación

La designación completa para un rodamiento Y o una unidad de rodamiento Y consta de una designación básica con o sin prefijo y/o uno o varios sufijos.

Para obtener detalles del sistema de designación de rodamientos Y, consulte Rodamientos Y.

Ball bearing plummer block units

Designation examples and the applicable options for ball bearing plummer block units are given below.
/

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 ball 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
P2B
Plummer block housing, normal base
P2BT
Plummer block housing, short base
SYPlummer block housing, normal base
SYFPlummer block housing, short base

Housing material
Grey cast iron
CComposite for the SKF Food Line
DSpheroidal graphite cast iron
K
Composite
SS
Stainless steel

Size identification
Bearing units for metric shafts: bearing bore uncoded
12
to
100
12 mm
to
100 mm
M
Metric size and metric threads, where applicable (only for the SKF Food Line units)
Standard bearing units for inch shafts: bearing bore uncoded
1/2
to
3
1/2 in. (12,7 mm)
to
3 in. (76,2 mm)
SKF Food Line bearing units for inch shafts: bearing bore coded

Three-digits combination that follows the housing/unit type and material identification of the unit designation: the first digit is the number of whole inches and the second and third digits are the number of sixteenths of an inch.
012
to
115
3/4 in. (19,05 mm)
to
1 15/16 in. (49,213 mm)
Housings made of cast iron, composite, composite for the SKF Food Line or stainless steel
503
to
520
for insert bearings of sizes 203, 203-008, 203/12 and 203/15
to
for insert 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
D
Next larger size than normal (inch units only)
L
Next larger size than normal (inch units only)
N
Relubricable execution of a composite housing.
S
Next smaller size than normal (inch units only)
U
Deviating housing features
Y
Suitable for ECW end cover
Z
Short base unit with inch thread (metric bearings only)

Inserted bearing
CPSSStainless steel insert bearing with grub screws, special bearing design for DFH units
FMInsert bearing with an eccentric locking collar, YET 2 series
KFInsert bearing with a tapered bore on an adapter sleeve, YSA 2-2FK series
LD, LDW
Insert bearing with SKF ConCentra locking, YSPAG 2 series
LF
Insert bearing with SKF ConCentra locking, YSP 2-2F series
RMInsert bearing with grub screws, YAT 2 series
TD, TDW
Insert bearing with grub screws, YARAG 2 series
TF
Insert bearing with grub screws, YAR 2-2F series
TPSS
Stainless steel insert bearing with grub screws, YAR 2-2LPW/SS series
TPZMInsert bearing with grub screws, zinc-coated inner and outer rings, YAR 2-2LPW/ZM series
TR
Insert bearing with grub screws, YAR 2-2RF series
WD, WDW
Insert bearing with an eccentric locking collar, YELAG 2 series
WFInsert bearing with an eccentric locking collar, YEL 2-2F series

Suffixes - other features
AHUnit for air-handling applications
DFH
Sealed unit (back seal and end cover installed)
SKF logo