Page 81 - SKF-bearing-housings

Design considerations
2
Attachment bolt recommendations cannot guarantee that tightening to the
In typical applications, 8.8 class hexagon head recommended value will provide sufficient
bolts in accordance with ISO 4014 can be used anchoring. Make sure that attachment bolts,
together with washers. If the load does not act dowels or stops, and a sufficiently strong sup-
perpendiculary toward the base, it may be port can accommodate all occurring loads.
necessary to use stronger 10.9 class bolts.
SKF housings can withstand loads resulting
from tightening the attachment bolts to the
torque values recommended by bolt manufac-
turers († table 10). They are valid for oiled,
but otherwise untreated, thread surfaces. SKF
Table 10
Load carrying capacity and torque values for cap bolts and attachment bolts

Q 120° Q 150° Q 180°

Housing Cap bolts Attachment bolts 1)
Size Yield point for two bolts Size Tightening Size Tightening
torque torque 2)
Q 120° Q 150° Q 180°
– kN – Nm – Nm
SNL 205 SNL 505 150 85 75 M 10¥40 50 M 12 80
SNL 206-305 SNL 506-605 150 85 75 M 10¥40 50 M 12 80
SE 207 SNL 507-606 150 85 75 M 10¥50 50 M 12 80
SE 208-307 SNL 508-607 150 85 75 M 10¥50 50 M 12 80
SE 209 SNL 509 150 85 75 M 10¥50 50 M 12 80
SE 210 SNL 510-608 150 85 75 M 10¥55 50 M 12 80
SE 211 SE 511-609 220 125 110 M 12¥60 80 M 16 200
SE 212 SE 512-610 220 125 110 M 12¥60 80 M 16 200
SE 213 SE 513-611 220 125 110 M 12¥65 80 M 16 200
SE 215 SE 515-612 220 125 110 M 12¥65 80 M 16 200
SNL 216 SNL 516-613 220 125 110 M 12¥70 80 M 20 385
SNL 217 SNL 517 220 125 110 M 12¥80 80 M 20 385
SNL 218 SNL 518-615 400 230 200 M 16¥90 150 M 20 385
SNL 519-616 400 230 200 M 16¥90 150 M 20 385
SNL 520-617 620 360 310 M 20¥100 200 M 24 665
SNL 522-619 620 360 310 M 20¥100 200 M 24 665
SNL 524-620 620 360 310 M 20¥110 200 M 24 665
SNL 526 900 520 450 M 24¥130 350 M 24 665
SNL 528 900 520 450 M 24¥130 350 M 30 1 310
SNL 530 900 520 450 M 24¥130 350 M 30 1 310
SNL 532 900 520 450 M 24¥130 350 M 30 1 310

1) Valid for SE and SNL housings only. For information about attachment bolts for FSE and FSNL housings,
refer to table 1 on page 62.
2) Recommended by bolt manufacturers.

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