ANTIFRICTION BEARING STEEL

EZM  manufactures high-quality antifriction bearing steel for products such as balls, rollers, needles and pinsfor ball bushes and ball bearings.

 

 

BALL BEARING STEEL

Ball bearing steel from EZM is characterised by optimum nearness to the net shape and maximum uniformity within a production lot, outstanding straightness, compliance with very close tolerance and high wear resistance.

 

 

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PRECISION BRIGHT STEEL / BALL BEARING STEEL

 

Special customer requirements occasioned us to produce selected bright steel specialities, such as antifriction bearing steel / ball bearing steel, which we also refer to as precision bright steel. The characteristic features of these antifriction bearing steels/ball bearing steels, etc. include the

 

  • producible materials,
  • attainable tolerances,
  • achievable surfaces,
  • available bar lengths, and
  • obtainable strengths. 
Metering rods

Rakelstangen_Präzisblankstahl
  Ejector pins

Auswerferstifte_Präzisblankstahl
 

Fittings

Fittings_Präzisblankstahl

  Ball bearings/Overrunning clutchesProfile.png

 

 

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VERSIONS AND FORMS SUPPLIED

 

Drawing

 

  • From 2.0 mm to 28.0 mm round, tolerance zone IT 9
  • Min. bar length 2,000 mm
  • Max. bar length 5,000 mm (2.0 mm to 6.0 mm round)
  • Max. bar length 7,000 mm (6.0 mm to 16.0 mm round)
  • Max. bar length 9,000 mm (> 16.0 mm round and on request)
  • Length tolerance ± 25.0 mm
 

Grinding

 

  • From 0.5 mm to 32.0 mm round, tolerance zone IT 6 (Rm up to 1,600 N/mm² for bright steel for standard parts)
  • > 32.0 mm to 60.0 mm round, tolerance zone IT 8
  • Min. bar length 1,500 mm (0.5 mm to 8.0 mm round)
  • Min. bar length 2,000 mm (> 8.0 mm to 32.0 mm round)
  • Max. bar length 6,000 mm (> 32.0 mm round)
  • Max. bar length 12,000 mm (> 10.0 mm < 25.0 mm and on request)
 

Sections, cold drawn

 

Symmetrical sections 

  • Squares
  • Hexagons
  • Octagons
  • Special sections to customer drawings from 0.5 mm² to 8,000 mm² cross-section

Chamfering/Pointing

 

  • Diameter range 7.0 mm to 30.0 mm round (≤ 7.0 mm round on request)
  • Max. bar length 7,000 mm
  • 30° angle, alternatively 45°
  • End facing
  • Pointing, 0.7 mm x diameter
 

Wire grinding

 

  • Starting diameter 6.5 mm to 21.0 mm round
  • Finished diameter 6.0 mm to 20.0 mm round
  Non-destructive crack testing

 

  • 7.0 mm to 30.0 mm round
  • ≥ 30.0 mm round on request
 

Ultrasonic testing

 

  • 15.0 mm to 30.0 mm round
  • > 30.0 mm round on request
 

Short length

 

  • Min. piece length 300.0 mm
  • Diameter range 10.0 mm to 30.0 mm
  • Flat 8.0 mm to 60.0 mm wide, 6.0 mm to 15.0 mm high
  • Length tolerance 0.3 mm
 

Adiabatic cutting

 

  • High-speed cutting of sections and round stock
  • Cross-sections: 5.0 mm² to 2,000 mm²

Packaging

 

  • Bars: loose/in bundles/in crates
  • Coils: loosely wound/spooled/special packaging