Page 157 - SKF-bearing-housings

Designations

Designations

Designation system for SNLN 30 plummer block housings
_SNLN_ 3024 SN
Prefix for bolt holes
4
– Two oblong cast holes for attachment bolts
S No holes for attachment bolts (only for housings made of speroidal graphite cast iron)
Series
SNLN Standard plummer block housing

Material
– Grey cast iron
D Spheroidal graphite cast iron

Size identification
30(00) Housings for bearings in the 30 (or 40) dimension series
..(00) Size code of the bearing, (00) ¥ 5 = bearing bore diameter [mm]
Suffixes 1)
V Grease escape hole in the housing base
T Drilled and tapped hole 1/4-28 UNF at one side of the housing cap to lubricate the seal.
Grease fitting AH 1/4-28 SAE-LT supplied with the housing.
TD Drilled and tapped hole 1/4-28 UNF at both sides of the housing cap to lubricate the seals.
Two grease fittings AH 1/4-28 SAE-LT supplied with the housing.
SN Drilled and tapped M8 hole for sensor in position 3 († fig. 15, page 178)
/MS1 Two drilled holes for attachment bolts
/MS2 Four drilled holes for attachment bolts

1) When multiple suffixes are used, they are listed in the same order as shown here.

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