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HFB · PDNI
PDNI two-bearing housings
One body with two bearing seats on a single shaft — the catalogue names fan assemblies as the main application.
PDNI is a housing with two bearing seats in one body. Both bearing positions carry grease nipples and the whole unit is designed for grease lubrication. Body, cover and grease control disc are made of grey cast iron GG 20.
The housings are supplied complete, with seals and grease control disc. The manufacturer also supplies them as a fully assembled unit with shaft and bearings, where the customer does not want to build the arrangement in-house.
Source
HFB catalogue 2011/03, pages 49–53.
From the manufacturer's catalogue
- Material
- grey cast iron GG 20 (body, cover, grease control disc)
- Lubrication
- grease, nipples at both bearing positions
- Seal
- supplied with the housing
- items in the catalogue
- 50
Other series
- SNIA split plummer block to DIN 736 and 737 — the most bought HFB series and the usual replacement for SNL housings.
- SNThe same design as SNI but to DIN 736 through 739, with a tighter seat — H7 instead of H8.
- SDA split housing for heavy loads, with a labyrinth seal as standard and stronger GG 25 iron.
- GOS / GOFHousings for high speeds and temperatures, oil-lubricated through a splash ring. Mostly in fan assemblies.
- BTLSolid GS 45 cast steel housings for conveyor drums, with a double labyrinth at both ends.
- STLSplit take-up housings for conveyor drums, in GS 45 cast steel with a double labyrinth.
- TVNUnsplit housings for self-aligning ball bearings with a cylindrical bore, supplied as floating bearings.
- UC / HCBall bearings with a spherical outer ring — they differ only in how they are fixed to the shaft and in the sealing.