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Oil seal OS-Q12

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Tel. + 31 38 30 32 700
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OS-Q12

Description

  • Fabric-reinforced OD
  • Spring-loaded elastomer sealing lip
  • Radial lubricating grooves at the bottom side
  • Relubrication is possible if 2 seals are installed back-to-back. For this the housing is provided with a circumferential annular groove and lubrication connection


Special features

  • Modern sealing lip design for high dynamic sealing action
  • Robust, fabric-reinforced outer diameter (no metal case)
  • High resistance to wear
  • For housings with increased surface roughness
  • Simple installation and replacement of the seal possible
  • All components of the seal are corrosion-resistant
  • Split design available, can be replaced without deinstallation of the shaft
  • Relubrication possible by radial grooves


Applications e.g.:

  • Heavy machinery
  • Marine applications
  • Rolling mills
  • Wind power systems
  • Large gearboxes


Materials

Standard material

Sealing lip NBR 80
OD layer NBR-impregnated cotton fabric
Spring Stainless steel 1.4310


Special materials

Sealing lip FKM 80
OD layer FKM- impregnated cotton fabric
Spring Stainless steel 1.4310


Application parameters

For the standard materials combination

Temperature  -30°C to +100°C                                                                                           
Pressure max. 0,05 MPa
Shaft speed max. 20 m/s
Media Mineral oil based lubricants

The diff erent permitted maximum values should always be seen in connection with all application parameters. The total load on the seal is the combination of individual values.


Design information

Shaft

Tolerance ISO h9
Hardness 60 HRC
Roughness Ra = 0,2 - 0,8 μm
Rmax ≤ 2,5 μm
Surface finish tfree of orientation (lead free)


Housing bore

Tolerance D ≤500mm: ISO H8
D >500mm: D+0,0004 x D
Roughness Ra = 1,6 - 4 μm 
Rmax ≤ 15 μm


Installation

The radial shaft seal is installed in an axially accessible housing. The outer diameter and the height of the seal are slightly oversized. The outer diameter is somewhat compressed during installation. Tightening the flange cover also causes slight axial compression of the seal height. The types OS-Q12 and OS-Q13 are installed in pairs back to back, as a rule.

Please read our installation instructions.

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