Page 78 - Y-bearing-units

Designation systems

Table 1
Y-bearing designation system
Examples YAR 208-2RF/HV YAR 2 08 2RF/HV
YEL 203/15-2FW YEL 2 03/15 2FW

Bearing series
YAR Inner ring extended on both sides, with grub screws
YAT Inner ring extended on one side, with grub screws
YEL Inner ring extended on both sides, with an eccentric locking collar
YET Inner ring extended on one side, with an eccentric locking collar
YHB Inner ring extended on both sides, hexagonal bore
YHC Inner ring extended on both sides, hexagonal bore
YQC Inner ring extended on both sides, square bore
YSA Inner ring symmetrically extended on both sides
Dimension series
2 Bearing to ISO 9628:2006
17262 Bearing to ISO 15:1998, Dimension Series 02,
sphered outside diameter
17263 Bearing to ISO 15:1998, Dimension Series 03,
sphered outside diameter
Bore diameter
Bearings for metric shafts
03/12 12 mm bore diameter
03/15 15 mm bore diameter
03 17 mm bore diameter
04 20 mm bore diameter
to
20 100 mm bore diameter
Bearings for inch shafts
Three-figure combination that follows the designation of the basic metric bearing
and is separated from this by a hyphen; the first figure is the number of whole
inches and the second and third figures are the number of sixteenths of an inch,
e.g. 204-012
-012 3 /4 in. = 19,050 mm bore diameter
-100 1 in. = 25,400 mm bore diameter
to
-208 2 1 /2 in. = 63,500 mm bore diameter
Suffixes
Seals
– Contact standard integral seal on both sides of the bearing
2F Contact standard integral seal with an additional plain flinger on both sides of the bearing
2LS8 Contact seal of synthetic rubber with sheet steel reinforcement on both sides of the bearing
2RF Contact standard integral seal with an additional rubberized flinger on both sides of the bearing
2RS1 Contact seal of synthetic rubber with sheet steel reinforcement on both sides of the bearing
VP076 Pressed sheet steel shield on both sides of the bearing
Material
HV Bearing components of stainless steel and food-grade grease
VE495 Zinc-coated inner and outer ring and stainless steel flingers, food-grade grease
VL065 Zinc-coated inner ring bore and side faces
Other features
AH Bearing for air-handling applications
C Cylindrical outside diameter
G Lubrication groove in the outside diameter, located at the side opposite the locking device
GR Lubrication groove in the outside diameter, located at the side of the locking device
K Tapered bore, taper 1:12
U Bearing without an eccentric locking collar
VT357 Bearing filled with a special grease
W Bearing without lubrication hole(s)
W64 Solid Oil fill

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