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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 take-up units

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


Metric units:
TUJ 20 TFwhereTUJ =
20 =
TF =

Inch unit:
TUWK 1 1/4 ALTAwhereTU =
W =
K =
1 1/4 =
A
L =
TA =

Applicable options for Y-bearing take-up units

Housing/unit type

J stands for dimensions in accordance with JIS 1559-2009

W at the end of the housing series designation identifies an SKF Food Line Y-bearing unit or housing
TUTake-up housing

Housing material
Grey cast iron
K
Composite

Size identification
Bearing units for metric shafts: bearing bore uncoded
20
to
60
20 mm
to
60 mm
Bearing units for inch shafts: bearing bore uncoded
3/4
to
2 3/16
3/4 in. (19,05 mm)
to
2 3/16 in. (55,563 mm)
Housings made of cast iron, composite, composite for SKF Food Line or stainless steel
504
to
512
for Y-bearings of sizes 204, 204-012
to
for Y-bearings of size 212

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

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


Inserted Y-bearing
Inserted Y-bearing
FMY-bearing with an eccentric locking collar, YET 2 series
TASKF Food Line Y-bearing with grub screws, YAR 2-2RF/VE495 series
TF
Y-bearing with grub screws, YAR 2-2F series
THR
SKF Food Line Y-bearing with grub screws, YAR 2-2RFGR/HV series

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