Page 678 - SKF-bearing-housings

Metric roller bearing units SYNT and FYNT series (SKF ConCentra)

Attachment bolt recommendations Table 7
In typical applications, 8.8 class hexagon head Torque values for attachment bolts
bolts in accordance with ISO 4014 can be used
together with washers. If the load does not act Bearing unit Attachment bolts
perpendicularly toward the base or is particu- Size Size Tightening
torque 1)
larly heavy, it may be necessary to use
stronger, 10.9 class bolts. – – Nm
SKF housings can withstand loads resulting
from tightening the attachment bolts to the SYNT 35 M 12 80
80
M 12
SYNT 40
torque values recommended by bolt manufac- SYNT 45 M 12 80
turers († table 7). They are valid for oiled, SYNT 50 M 16 200
but otherwise untreated, thread surfaces. SYNT 55 M 16 200
SKF cannot guarantee that tightening to the SYNT 60 M 16 200
recommended value will provide sufficient SYNT 65 M 16 200
anchoring. Make sure that attachment bolts, SYNT 70 M 20 385
385
M 20
SYNT 75
dowels or stops, and a sufficiently strong sup-
port can accommodate all occurring loads. SYNT 80 M 20 385
SYNT 90 M 24 665
SYNT 100 M 24 665
FYNT 35 M 12 80
FYNT 40 M 12 80
FYNT 45 M 12 80
FYNT 50 M 12 80
FYNT 55 M 12 80
FYNT 60 M 12 80
FYNT 65 M 16 200
FYNT 70 M 16 200
FYNT 75 M 16 200
FYNT 80 M 16 200
FYNT 90 M 20 385
FYNT 100 M 20 385

1) Recommended by bolt manufacturers.

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