Page 162 - SKF-bearing-housings

Split plummer block housings SNLN 30 series

Housing material Housing variants
SNLN 30 housings are made of grey cast iron.
In addition to standard design SNLN 30 hous-
Paint, corrosion protection ings, a number of variants are also available.
SNLN 30 housings are painted black Variants include housings made of different
(RAL 9005) using a water based alkyd/acryl materials, alternative attachment bolt hole
paint. The paint protects the housing in configurations, different bearing seat toler-
accordance with ISO 12944-2, corrosivity ance classes and modifications for special
category C2 (i.e. exterior atmospheres with applications.
low level of pollution, interior atmospheres
where condensation may occur). The paint is
not affected by most lubricating or engine oils, Housing material
cutting fluids or alkalescent washing chemicals. For applications where extra strength is needed,
Housings can be repainted with most water SNLN 30 housings are also available in sphe-
or solvent based 1- or 2-component paints. roidal graphite cast iron. These housings are
Unpainted surfaces are protected by a supplied with a solid base, designation
solventless rust inhibitor. SSNLND.

Dimension standards Attachment bolt holes
Boundary dimensions are in accordance with SNLN 30 plummer block housings can be
ISO 113 for two-bolt plummer block housings. supplied with the following bolt hole config-
urations:
Interchangeability
SNLN 30 plummer block housings are dimen- • four drilled holes
sionally interchangeable with the earlier SN 30 These variants are available for housings
housings. with two cast bolt holes, designation SNLN,
and for housings made of spheroidal graph-
ite cast iron with a solid base, designation
SSNLND.
Dimensions are listed in table 1. These
housings have the designation suffix /MS2.
• two drilled holes
These variants are available for housings
made of spheroidal graphite cast iron with
a solid base, designation SSNLND.
Dimensions are listed in table 1. These
housings have the designation suffix /MS1.

Bearing seat tolerance
SNLN 30 housings can be supplied with differ-
ent bearing seat tolerance classes, e.g. for
applications prone to vibration, with rotating
outer ring load or for applications operating
at high temperatures.
For additional information, contact the SKF
application engineering service.

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