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Standard housing design

SKF provides an assortment of housings for paper machines. The four standard housing series include:
  • SBFN series, for felt rolls
  • SBPN series, for drying cylinders
  • SDM series, for Yankee cylinders
  • SNL … TURP series, for drying cylinders and felt rolls
SBFN felt roll housings (fig. 1) are non-split housings. They consist of a housing body and two covers with integrated seals. The base has two oblong cast holes for attachment bolts. Oblong attachment bolt holes enable exact positioning of the housing during mounting to fully exploit the potential of CARB toroidal roller bearings to accommodate thermal elongation of the shaft. For dimensions and detailed specifications of SBFN housings, contact SKF.
SBPN drying cylinder housings (fig. 2) are non-split housings. They consist of a housing body and two covers with integrated seals. The base has four cast holes for attachment bolts. Housings for spherical roller bearings have open-ended attachment bolt holes. Housings for CARB toroidal roller bearings have oblong attachment bolt holes. They enable exact positioning of the housing during mounting to fully exploit the potential of CARB toroidal roller bearings to accommodate thermal elongation of the shaft.
SDM Yankee cylinder housings (fig. 3) are split housings consisting of a cap, base and two covers with integrated seals. The inboard cover is split to enable removal of the cover without removing the cap. To facilitate handling, the cap has two integral flanges, with a hole cast into each one. The base has four holes for attachment bolts. Housings for spherical roller bearings have drilled attachment bolt holes. Housings for CARB toroidal roller bearings have oblong attachment bolt holes. They enable exact positioning of the housing during mounting to fully exploit the potential of CARB toroidal roller bearings to accommodate thermal elongation of the shaft.
For information about SNL … TURP housings, refer to Split plummer block housings SNL 30, 31 and 32 series. For information about other housings for felt rolls and drying cylinders such as SBF and SBP housings (predecessors to SBFN housings and SBPN housings respectively) as well as SDM Yankee cylinder housings on rockers (fig. 4), all of which can still be supplied by SKF, contact the SKF application engineering service.
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