SKF - Rolling Bearings

2 Y-bearings
Bearing data
Y-bearings
with grub screws
(series YAT 2, YAR 2, YARAG 2)
with an eccentric locking collar
(series YET 2, YEL 2, YELAG 2)
Dimension
standards
Boundary dimensions:
ISO 9628
Bearings in the YAT 2 series are
not standardized. However, the
bore and outside diameter and the
outer ring width are in accordance
with ISO 9628.
Boundary dimensions:
ISO 9628
Tolerances
For additional
information
(† page 132)
Radial internal
clearance
For additional
information
(† page 149)
Misalignment
Values for the bore and outside diameter: († table 5, page 442)
The values for bore and outside diameter tolerances are slightly
tighter than those listed in ISO 9628.
ISO 9628 – Group N
Values: († table 6, page 442)
Values are valid for unmounted bearings under zero measuring load.
Static misalignment
Y-bearings can accommodate initial misalignment by tilting in the housing
(† fig. 27, page 443), because of their sphered outside surface. The
permissible values depend on the housing type:
• SKF cast iron and composite housings
––
relubrication is not required † 5°
––
relubrication is required † 2°
Friction,
starting torque,
power loss
Defect frequencies
Frictional moment, starting torque and power loss can be calculated ...
Defect frequencies can be calculated using the tools available online ...
440