Page 570 - SKF-bearing-housings

Two-bearing housings PD series

Attachment bolt recommendations
In typical applications, 8.8 class hexagon head
bolts in accordance with ISO 4014 can be used
together with washers. If loads do not act per-
pendicularly towards the support surface, it
may be necessary to use stronger, 10.9 class
bolts.
SKF housings can withstand loads resulting
from tightening the attachment bolts to the
values recommended by bolt manufacturers
(† table 4). They are valid for oiled, but oth-
erwise untreated thread surfaces. SKF cannot
confirm that tightening to the recommended
value will provide sufficient anchoring. Make
sure that attachment bolts and a sufficiently
strong support can accommodate all occurring
loads.
Table 4
Cover bolts and attachment bolts
Housing series Cover bolts Attachment bolts
PDN 2 PDN 3 PDP PDR Size Tightening Size Tightening
torque torque 1)
– – Nm – Nm
PDN 206 PDN 305 M 6x20 10 M 10 50
PDN 207 PDN 306 M 6x20 10 M 12 80
PDN 208 PDN 307 M 6x20 10 M 12 80
PDN 210 PDN 308 M 6x20 10 M 12 80
PDN 211 PDN 309 M 6x20 10 M 12 80
PDN 212 PDN 310 M 6x20 10 M 12 80
PDN 214 PDN 311 M 8x25 25 M 16 200
PDN 215 PDN 312 PDP 2214 M 8x25 25 M 16 200
PDN 216 PDN 313 PDP 2216 M 8x25 25 M 16 200
PDN 314 M 8x25 25 M 16 200
PDN 218 PDN 315 PDP 2218 PDR 315 M 8x30 25 M 16 200
PDN 316 PDR 316 M 10x30 50 M 16 200
PDN 220 PDN 317 PDP 2220 PDR 317 M 10x30 50 M 16 200
PDN 318 PDR 318 M 10x30 50 M 16 200
PDN 222 PDN 319 PDP 2222 PDR 319 M 10x35 50 M 20 385
PDN 224 PDN 320 PDP 2224 PDR 320 M 12x35 80 M 20 385
PDN 322 PDR 322 M 12x35 80 M 24 665
PDN 324 PDR 324 M 12x35 80 M 30 1 310

1) Recommended by bolt manufacturers.

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