Page 345 - SKF-bearing-housings

Design considerations

SKF housings can withstand loads resulting
from tightening the attachment bolts to the
torque values typically recommended by bolt
manufacturers († table 4). They are valid for
oiled, but otherwise untreated thread sur-
faces. Hexagon head bolts tightened to the
recommended torque value cannot accommo-
date any load in the direction of the bolt axis.
SKF cannot guarantee that tightening to the
recommended value provides sufficient
anchoring. Make sure that attachment bolts,
dowels or stops, and a sufficiently strong sup-
port can accommodate all occurring loads.
6

Table 4

Housing body Attachment bolts
Superbolts Hexagon head bolts
Size Grade 10.9 bolt body 1) Jack bolt Size Tightening
torque
Size Tightening
torque
– – Nm – Nm
1 SB12-M 72x6xL/W M 16x1,5 350 M 72 26 500
2 SB12-M 72x6xL/W M 16x1,5 350 M 72 26 500
3 SB12-M 80x6xL/W M 16x1,5 350 M 80 36 600
4 SB12-M 80x6xL/W M 16x1,5 350 M 80 36 600
5 SB12-M 80x6xL/W M 16x1,5 350 M 80 36 600
6 SB12-M 80x6xL/W M 16x1,5 350 M 80 36 600

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