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HFB · BTL
BTL drum bearing housings
Solid GS 45 cast steel housings for conveyor drums, with a double labyrinth at both ends.
BTL housings are made from GS 45 cast steel; spheroidal or grey iron on request. They are solid housings, suited to spherical roller bearings with a cylindrical bore or on an adapter sleeve.
Depending on requirements they are supplied as locating or floating bearings.
Sealing is by a double labyrinth at both ends; the housings are designed for grease lubrication. Two grease holes sit midway between the bearings for regreasing, and the labyrinths can have separate holes.
On request a taconite seal replaces the labyrinth — for work in dust and aggregate.
Source
HFB catalogue 2011/03, page 81.
From the manufacturer's catalogue
- Material
- cast steel GS 45; GGG and GG on request
- Seal
- double labyrinth; taconite on request
- Bearing
- spherical roller, cylindrical bore or adapter sleeve
- Lubrication
- grease
- items in the catalogue
- 250
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.
- 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.