Seepex BN 5-12 Series, Руководство по эксплуатации и техническому обслуживанию

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R-001-04
Page 3 of 4
Date: 7-2003
R-001-03
Technical Note
Housing Material:
Except for the R07, R17, and R27, which are made from high strength cast aluminum, all SEW
reducer housings and flanges are manufactured from SAE 30 or equivalent (GG20) gray cast
iron due to the following benefits:
•
Cast iron flows well, allowing it to be used on intricate castings.
•
Cast iron machines well.
•
Cast iron serves as an excellent damping material to minimize vibration – contributing
to longer bearing life and gear life.
Ductile iron (or nodular iron), a type of cast iron containing magnesium, is 2 to 4 times stiffer
than gray cast iron. It is often used in applications involving heavy shock loads at low
temperatures – when gray iron housings lose much of their shock absorbing strength. Ductile
iron housings are not available on R-series gearmotors.
Optional Bearings
R-series reducers are available with the following optional heavy-duty bearings that increase
the reducer’s overhung load capacity. For more information, contact Regional Engineering.
Output Bearings
Unit
Standard Optional
RX/RXF57 Ball Spherical Roller *
RX/RXF67 Ball Spherical Roller
*
RX/RXF77 Ball Spherical Roller
*
RX/RXF87 Ball Spherical Roller
*
RX/RXF97 Ball Spherical Roller *
RX/RXF107 Ball Spherical Roller
*
R/RF67 Ball Spherical Roller
**
R/RF77 Ball Spherical Roller **
R/RF87 Ball Spherical Roller **
R/RF97 Ball Spherical Roller
**
R/RF107 Ball Spherical Roller
**
*
Nilos ring required for M2 mounting position
**
Nilos ring required for all mounting positions