Page 468 - SKF-bearing-housings

Split pillow blocks SDAF series including the extended range (inch dimensions)

Load carrying capacity of the housing application engineering service. For purely
Guideline values for the safe loads of housings axial loads, static or dynamic, the loads on the
made of grey cast iron are listed in tables 4 housing should not exceed 65% of P 180° . For
and 5. The safe loads have been calculated bearings mounted on adapter sleeves, the
using a safety factor of 5 against base fracture permissible axial load is dependent on the
and a factor of 2 against cap bolt yield. adapter sleeve.
For housings made of ductile iron, the val-
ues obtained from tables 4 and 5 should be
multiplied by a factor of 1,5 for ASTM A339
grade 60-45-10. For information about
ASTM A339 grade 80-60-03, contact the SKF
Table 4
Safe loads and cap bolt information for SDAF cast iron housings

P 60° P 90° P 120°

P 150° P 180°

Housing Recommended safe loads Cap bolt information
Size P 60° P 90° P 120° P 150° P 180° Cap bolt Torque SAE
size grade
– lbf. in. ft.-lbs.
220 317 520 617 40 080 24 000 15 000 13 700 16 600 3/4-10 175 2
318 618 45 900 27 500 17 300 16 000 19 300 3/4-10 175 2
222 522 51 700 31 000 19 600 17 600 21 200 7/8-9 165 2
224 320 524 620 54 000 36 500 23 600 21 600 26 500 7/8-9 165 2
226 322 526 622 60 100 36 000 23 600 21 600 27 000 7/8-9 165 2
230 324 530 624 85 100 51 000 32 000 29 000 35 500 1.1/8-7 350 2
232 326 532 626 83 500 50 000 31 500 28 500 34 500 1.1/8-7 350 2
238 332 538 632 127 000 76 500 47 500 43 000 52 000 1.1/4-7 350 2
240 334 540 634 150 000 90 000 56 000 50 000 60 000 1.1/4-7 350 2
336 636 141 000 85 000 53 000 48 000 57 000 1.3/8-6 350 2
244 338 544 638 152 000 91 500 57 000 52 000 63 000 1.3/8-6 660 2
340 640 144 000 86 500 54 000 49 000 58 500 1.3/8-6 660 2

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