SD Model (Differential Type)

Attach it to the shaft whose revolutions you wish to measure, and it will display the number of revolutions. In the differential type, when the rotating shaft turns, the dial rotates in the same direction. You can freely choose between dials that increase clockwise or counterclockwise. There are no restrictions on the mounting direction, and you can choose from outer diameters of 50 mm or 100 mm.

[Specifications]

Unit [mm]
Model Construction Number of hands Speed ratio Weight [kg]
SD - 50 Differential type - 1/20 0.06
SD - 100 Differential type - 1/25, 1/50 0.27
  • The SD-50 and SD-100 are also available in a version without scale markings on the dial (Type N).
  • Differential type: When the drive plate (handle) is turned, the scale plate moves in the same direction.

[Dimensions]

三木プーリのSD作動型単体回転数指示計寸法図 外形寸法および主要部寸法を示す寸法図
Unit [mm]
Model A B C D E F G H J L Mass [kg]
SD - 50 - □□ 50 23 20 12 22 5 4 5 M4 28 0.06
SD -100 - □□ 100 32 40 20 36 17 5 6 M6 49 0.27
三木プーリのSD作動型単体 回転数指示計(差動型)ご注文時の型式構成説明図