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Drive Shaft for Rolling Mills (Block Type)

ブロックタイプ駆動軸 / JTEKT Corporation (Official website) / Listed on page 7 of the document

A high-strength, long-life drive shaft that drives rolls in rolling mills. Used under demanding conditions such as plate rolling mills and hot rolling mills.

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Drive Shaft for Rolling Mills (Block Type) on page 7 of JTEKT Corporation "製鉄・圧延設備用 高性能商品シリーズ"
Source: JTEKT Corporation「製鉄・圧延設備用 高性能商品シリーズ」page 7
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Specifications

Peeling life (different-diameter rollers) Approx. 1.4 times
Peeling life (ball burnishing) Approx. 1.7 times
Corrosion resistance Approx. 1.5 times or more
Fatigue Strength (Rolled Thread) Approx. 1.9 times

Description

High strength and long service life are achieved through the use of different-diameter rollers in the cross bearing, ball burnishing, tungsten carbide thermal spraying on the bearing cup key, and rolled threads for the bearing fixing bolts.

Features

  • Different-diameter rollers in cross bearing
  • Ball burnishing of cross raceway
  • Tungsten carbide thermal spraying on bearing cup key section
  • Rolled threads on bearing fixing bolts

Applications

  • Plate rolling mills
  • Blooming mills
  • Hot rolling mills

FAQ

Q. Which rolling mills can the Drive Shaft for Rolling Mills (Block Type) be used in?
A. It is used in plate rolling mills, blooming mills, and hot rolling mills.
Q. What structural features achieve high strength and long service life in the Drive Shaft for Rolling Mills (Block Type)?
A. High strength and long service life are achieved through different-diameter rollers in the cross bearing, ball burnishing of the cross raceway, tungsten carbide thermal spraying on the bearing cup key section, and rolled threads for the bearing fixing bolts.
Q. How much has the spalling life and fatigue strength of the Drive Shaft for Rolling Mills (Block Type) been improved?
A. Spalling life is improved by approximately 1.4 times with different-diameter rollers and approximately 1.7 times with ball burnishing. Fatigue strength of the rolled threads is approximately 1.9 times higher, and corrosion resistance is approximately 1.5 times or more higher.

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