High-Precision Roll Unit

We deliver a roll with bearings and cases.

Features

  1. The assembled roll has a rotational runout of 3 μm or less.
  2. HCr plating/tungsten carbide coating, and DLC coating are available for surface treatment.
  3. We can achieve a surface roughness of up to Ry 0.05 μm (Ra 0.01 μm).
  4. We can perform on-site construction, including updating of the drive system.

Rotational Runout Measurement Conditions

  1. The roll is measured after bearings and cases are assembled into the roll.
  2. The roll can have the roll diameter of up to ⌀350 and the face length of up to 3 m.
  3. The measurement is performed using Spectral-interference Laser Displacement Meter (Keyence) SI-F series with a resolution of 0.01 μm.

Rotational runout at operation end: 1.28 μm

Rotational runout in center portion: 2.34 μm

Rotational runout at drive end: 1.50 μm

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