Flat cages

with & without needles

Steel Cages and Radial Steel Cages are offered at ITM UNITEC GmbH

Radial Steel Cages

We offer following flat cages according to the customer's requirements:

  • Steel Cage with & without needles
  • Steel Cage converted to Radial Steel Cage
    • assembled with Needles (K)
  • Radial Steel Cage with hardened inner & outer rings
    • assembled (KR)

Special Properties

Our flat cages made of alloy steel are manufactured for the highest requirements. They are filled with end-profiled needle rollers and thus guarantee a very high load capacity as well as high stiffness. In addition, they impress with their smooth running. They are a cost-effective alternative to standard bearings. In our assortment there are not only standard lengths, because on request we also manufacture special lengths.

In principle, only rollers of a quality class with a tolerance of 2μm are used and needle rollers of quality class G2 according to DIN 5402-3. High-precision bearings can be manufactured at low cost.

Technical Information

  • Running surfaces (shaft/housing) must be hardened and polished
  • Alternatively, corresponding steel bands can be supplied as inner and outer rings
  • Tolerance shaft/housing: f6/H7
  • Open butt joint
  • Lateral contact surface (Ra<0.8) must be wear-resistant

Sealing is carried out with commercially available seals between the bearing and adjacent construction.

Flat cages, radial needle rollers and steel rings are corrosion protected and compact. Before start-up, depending on the lubrication method, the parts must be oiled or greased.

Radial needle rollers with steel rings are supplied ready for installation.

For quality reasons, the cages are monitized in our company with end-profiled needle rollers from a sorting, tested and then packed in a corrosion-protected manner.

Flat cages are available in the following standard length units:

  • 1000 mm
  • 1250 mm
  • 1500 mm
  • 1750 mm
  • 2000 mm
  • Special lengths on demand
  • Flat cage without needle rollers IBF 735 length 1500 mm 
    • Order description: IBF 735/1500
  • Flat cage filled with needle rollers IBFZ 735 length 2000 mm 
    • Order description: IBFZ 735/2000

Product Film

Application example for a flat cage which is bent into a needle roller.

Needle Rollers


Our quality standards

  • EN 9100:2018 certified
  • ISO 9001:2015 certified

More About Quality




We will be happy to advise you by phone and e-mail.

+49 (0) 7191 495265 - 0