Page 38 - SKF-bearing-housings

SKF bearing housings – overview, selection and application recommendations

Table 4
Application-specific housings

Series SBPN SBFN SDM SKND FSDR
Chapter 13 13 13 14 15

Application Drying Felt roll Yankee Converter Mill
cylinder cylinder trunnion trunnion

Bearing types
Self-aligning ball bearing – – – – –
Spherical roller bearing 1 1 1 1 1
CARB bearing 1 1 1 1 –

Shaft diameter range
from [mm] 180 60 340 530 825
to [mm] 320 180 670 1 180 1 460
from [in.] 1) 1) 1) 1) 1)
to [in.] 1) 1) 1) 1) 1)

Shaft-bearing combination
Bearing on an unthreaded sleeve – – – – 1 2)
Bearing on a cylindrical seat – optional – 1 –
Bearing on a tapered seat 1 1 1 – –

Sealing solutions
Lip seal – – – 1 –
V-ring seal – – – – 1
Labyrinth seal 1 1 – – 1
Gap-type seal – – 1 – –

Lubrication
Grease – – – 1 1
Oil 1 1 1 – –

Materials
Grey cast iron 1 1 1 – 1
Spheroidal graphite cast iron – – – 1 optional

Mounting
No attachment bolts – – – – –
Two-bolt mounting – 1 – – –
Four-bolt mounting 1 optional 1 1 1

Supersedes (SKF) SBP SBF 2) – SDKD –

1) Contact SKF.
2) Housings are still available.

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