Reducers

Reducers are mechanical device that outputs power obtained from the output shaft of a power source such as a motor by reducing the rotational speed using gears.

The ratio of the number of gear teeth on the input and output sides is the reduction ratio, and the torque at the output shaft is inversely proportional to the reduction ratio.

Our line-up includes three gear types - helical gears, hypoid gears and worm gears - which can be selected according to the motor specification, shaft arrangement (parallel or right-angle shaft) and output shaft shape (solid or hollow) to suit the purpose.

Types and features of gears

The following five kinds of gears are used in our reducer. The features of each gear are shown in the table below.

Hypoid gear Cylindrical Worm Troidal Worm Bevel gears Helical Gear
Gears Gear Picture Gear Picture Gear Picture Gear Picture Gear Picture
Axis Position Right angle shafts Parallel shafts
Skew Cross
Efficiency 80% 40~70% 40~80% 90% 90%
Noise Good Excellent Excellent Fair Fair
Self-Locking ※ None Provided
(Reduction ratio 1/60)
Provided
(Reduction ratio 1/60)
None None

※Self-Locking: This is a function of the worm gear that the input shaft side cannnot be turned from the output shaft side.
Generally, reduction ratio is 1/60 as a single-step reduction.

Miter and Bevel Gear Boxes

Miter and bevel gear box that changes the direction of power transmission by 90° or distributes it left or right (up or down) by 90°.

Tsubaki's Miter and bevel gear boxes are available in a full lineup from small to large models.
A long-life product that has been used in a variety of applications for half a century since its launch.

With the use of a high-precision spiral bevel gear compliant with AGMA standards, achieves high efficiency and high transfer capacity.

Various special models are available to meet every market needs. (speed ratio 1:1 - 1:3)

As a basic function...

1. Change the direction of power transmission by 90°.

Basic function

2. Change the direction of power transmission by 90° and distribute it to the left and right (up and down).

Basic function

As an application example…

3. Arrange Miter gear boxes in a row and connect the cross shafts as input to rotate the lateral shafts.

Application Examples

4. Using the lateral 2-shafts type, input from the cross shafts and rotate the opposite lateral shafts in the opposite direction.

Application Examples

Miter Gear Box

Model No.  ED~

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Right angle gear box of spiral bevel gears with high performance and high efficiency.

  • ・The Miter Gear Box has a good reputation from customers in various fields due to its reliability and proven performance from our years of experience.
  • ・Full lineup from small to large models. You can select the best one of a wide variety of models.
    Various special models are available to meet every market need.
  • ・With the use of a high-precision spiral bevel gear compliant with AGMA standards, delivers high efficiency and high transfer capacity.
  • ・Available for food lubricant :Models with NFS-certified H1-grade food lubricants are also available.
    Ideal for obtaining FS SC22000 certification. The external dimensions are the same as the standard specifications.
Input capacity

0.014~335kW



Reduction ratio

1/1, 1/1.5~1/3

ARAGear Box

Model No.  ARA~

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Small-sized, ultra-lightweight type of our Miter Gear Box

  • ・Compact, Lightweight, Good-Looking :The case is made of aluminum die cast (ADC).
  • ・High corrosion resistance :High corrosion resistant stainless steel (SUS304) is used for the shaft material.
  • ・Universal mounting :This type can be easily mounted in any direction.
  • ・High Efficiency, High Transmission Capacity, Low Noise, Low Vibration :The high precision spiral bevel gear provides an array of high-level functions.
  • ・Available for food lubricant :Models with NFS-certified H1-grade food lubricants are also available.
    Ideal for obtaining FS SC22000 certification. The external dimensions are the same as the standard specifications.
Input capacity

0.005~3.15kW



Reduction ratio

1/1, 1/2