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Traction Drive Unit (No-Backlash Type)

トラクションドライブユニット / JTEKT Corporation (Official website) / Listed on page 2 of the document

High-precision reducer that transmits power through rolling contact between rollers. Double-row ball bearings inside the planetary rollers eliminate backlash, suppressing rotational unevenness, noise and vibration.

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Traction Drive Unit (No-Backlash Type) on page 2 of JTEKT Corporation "トラクションドライブユニット 高精度送り用減速機"
Source: JTEKT Corporation「トラクションドライブユニット 高精度送り用減速機」page 2
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Specifications

Reduction Ratio 100 (two-stage reduction)
Torque (output shaft) 2～4 N・m
Rotational speed fluctuation rate ±0.5% or less
Backlash 0.01 deg or less

トラクションドライブユニット model comparison

Compare 2 models in the same series by specification.

Model Reduction Ratio Torque (output shaft) Rotational speed fluctuation rate
トラクションドライブユニット（コンパクトタイプ） 10 2～4 N・m ±0.5% or less
トラクションドライブユニット（ノーバックラッシタイプ） This product 100 (two-stage reduction) 2～4 N・m ±0.5% or less

Description

High-precision, high-strength rollers are assembled with elastic deformation, and traction grease that increases in viscosity under high pressure is used to achieve smooth power transmission without play. A single stage provides a reduction ratio of 3 to 12, and multi-stage configurations enable large reduction ratios. Suitable for feed applications such as printing machines, medical equipment, FPD manufacturing equipment and robots.

Features

  • Minimal rotational unevenness
  • No backlash
  • Low noise and low vibration
  • Reduced friction through double-row ball bearing structure inside planetary rollers

Applications

  • Feed drums for printing machines
  • Medical equipment
  • FPD manufacturing equipment
  • Robots
  • Machine tools

FAQ

Q. What reduction ratio range does the Traction Drive Unit (No-Backlash Type) cover?
A. A single stage provides a reduction ratio of 3 to 12. Multi-stage configurations also enable large reduction ratios.
Q. What applications is the Traction Drive Unit (No-Backlash Type) suited for?
A. It is suited for feed applications such as printing machines, medical equipment, FPD manufacturing equipment and robots. Listed applications in the product information include feed drums for printing machines, medical equipment, FPD manufacturing equipment, robots and machine tools.
Q. How does the Traction Drive Unit (No-Backlash Type) eliminate backlash?
A. Double-row ball bearings inside the planetary rollers eliminate backlash and suppress rotational unevenness, noise and vibration. In addition, high-precision, high-strength rollers are assembled with elastic deformation, and traction grease that increases in viscosity under high pressure is used to achieve smooth power transmission without play.
Q. What are the rotational accuracy and output specifications of the Traction Drive Unit (No-Backlash Type)?
A. Rotational speed fluctuation rate is ±0.5% or less, and backlash is 0.01 deg or less. At a reduction ratio of 100 (two-stage reduction), output shaft torque is 2 to 4 N·m.

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