Page 344 - SKF-bearing-housings

Split plummer block housings SED 30, 31, 32 and 39 series

Operating temperature Attachment bolt recommendations
The permissible operating temperature is SKF recommends using Superbolt multi-jack
mainly limited by the seal († table 3, tensioners as attachment bolts for easier and
page 339) and the lubricant in the bearing. For more reliable mount ing compared to standard
temperature limits of SKF bearings and lubri- hexagon head bolts. In typical applications,
cants, refer to the product information avail- 10.9 class hexagon head bolts in accordance
able online at skf.com/bearings. with ISO 4014 can be used together with
The housing material does not have any washers. If the load does not act perpendicu-
additional temperature limits, except for very larly toward the base, it may be necessary to
low temperature applications where impact use stronger, 12.9 class bolts.
strength could be a factor.
The housing paint is heat resistant up to
80 °C (175 °F) material temperature or 100 °C
(210 °F) ambient temperature.
When temperatures outside the permissible
range are expected, contact the SKF application
engineering service.

Operating speed
The seals can limit the permissible operating
speed. They are suitable for circumferential
speeds of up to 7,5 m/s.
For speed limits of the bearing, refer to
the product information available online at
skf.com/bearings.

Torque values for cover bolts and attachment bolts
Housing body Cover bolts
Cover Radial seal cover
Size Size Tightening Size Tightening
torque torque

– – Nm – Nm
1 M 16/M 24 200/665 M 10 50
2 M 16/M 24 200/665 M 10 50
3 M 16/M 24 200/665 M 10 50
4 M 16/M 24 200/665 M 10 50
5 M 16/M 24 200/665 M 10 50
6 M 16/M 24 200/665 M 10 50

1) L = length

340