Page 174 - SKF-bearing-housings

Split plummer block housings SNLN 30 series

Load carrying capacity Breaking loads and safety factors
SNLN 30 housings are intended for loads Guideline values for the breaking loads of
acting perpendicularly toward the support housings made of grey cast iron are listed in
surface. If the housing is supported over its table 7. To obtain the permissible load for a
entire base and the loads are purely perpen- housing, the appropriate breaking load value
dicular, loads are limited only by the bearing. should be divided by a factor based on the
If loads acting in other directions occur, or if safety requirements. In general engineering,
the housing is not supported over its entire a safety factor of 6 is typical († Load carrying
base, be sure that the magnitude of the load capacity, page 44). The permissible load can
is permissible for the housing, the cap bolts only be exploited if the cap bolts are tightened
and the attachment bolts. When housings are at least to the torque values listed in table 8.
subjected to cyclic loads or dynamic imbalance, If the housing is not supported over its
contact the SKF application engineering entire base, the load carrying capacity for
service. loads acting perpendicularly to the support
surface may be affected. For additional infor-
mation, contact the SKF application engineer-
ing service.
Table 7
Breaking loads for SNLN 30 plummer block housings made of grey cast iron

P 55° P 90° P 120°

P 150° P 180° P a

Housing Breaking loads
Size P 55° P 90° P 120° P 150° P 180° P a
– kN
SNLN 3024 520 310 230 210 260 90
SNLN 3026 620 370 280 250 310 110
SNLN 3028 700 420 310 280 350 120
SNLN 3030 780 470 350 310 390 130
SNLN 3032 840 500 380 340 420 150
SNLN 3034 1 000 600 450 400 500 170
SNLN 3036 1 160 700 520 460 580 200
SNLN 3038 1 300 780 580 520 650 220
SNLN 3040 1 480 890 670 590 740 260
SNLN 3044 1 700 1 020 760 680 850 300
SNLN 3048 1 880 1 130 850 750 940 330
SNLN 3052 2 120 1 270 950 850 1 060 370
SNLN 3056 2 240 1 340 1 000 900 1 120 390

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