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Technical instructions for WINKEL Profiles & Bearings

WINKEL-Profiles

WINKEL U-Profiles with 30% increased load capacity

  • Higher load capacity at same sizes by using profiles with steelgrade S450 J2 mod.
  • Choice of smaller sizes (price advantage)
  • Higher resistance against wear out effects

Comparison S355 J2 - S450 J2 mod.

Notice: Yield point 1 is only valid for flange thickness < 20 mm, yield point 2 is only valid for flange thickness > 20 mm.
Characteristic S355 J2 S450 J2 mod.
Yield point 1 min 355 MPa [N/mm²] min 430 MPa [N/mm²]
Yield point 2 min 345 MPa [N/mm²] min 420 MPa [N/mm²]
Tensile strength 470 - 630 MPa [N/mm²] 550 - 700 MPa [N/mm²]
max. hertzian pressure 750 MPa [N/mm²] 900 MPa [N/mm²]

Strength properties steel S450 J2

Because of micro alloying with Vanadium and/or Niobium the steel grade S450J2 mod. has a significantly higher tensile and yield strength and a more fine-grained structure than the customary steel grade S355 J2.
In consequence of this and due to a stronger limitation of the elements P and S the steel shows a higher resistance to brittle fracture. Related to this is an increased bearing pressure which is shown by the diagram below.

Load capacity of radial bearings in comparison:

WINKEL-Bearings

For economical designs in machines, lifting and handling systems.

Advantages of the WINKEL Bearing system:

  • Reduces your designing and production costs
  • Can take up high radial and axial loads
  • Strong profiles for high stat. and dynamic loads
  • Best dispersion of forces in the profiles
  • Longer lifetime for bearings and profiles
  • Economical assembling by welding bolt
  • Bearing components are easily exchangeable

Technical characteristics:

  • Outer rings are made from case-hardened steel UNI 16 CrNi 4 hardened at 62+2HRC
  • Inner rings are made from bearing steel En 31-SAE 52100 hardened at 62-2 HRC
  • Cylindrical rollers have flat ground heads, made from En 31-SAE 52100 steel hardened at 59 – 64 HRC
  • Welding bolts are made from C22E (Material no. 1.1151)
  • Bolt tolerance –0.05 mm
  • Bearings from 4.054 to 4.063 are relubricateable
  • Bearings are lubricated with grease grade 3 (e.g. Shell Alvania 3, Esso Beacon 3)
  • Standard WINKEL Bearings are resistant from -20 °C to +80 °C
  • WINKEL Bearings for temperatures up to 250 °C see series HT

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