• Skip to primary navigation
  • Skip to main content
  • Skip to footer

Sensitivus Gauge

Advanced Bike Sensor Technology

  • TORQUE & CADENCE SENSOR
    • TORQUE/CADENCE SENSOR SG2Q
    • FORM FACTOR
    • TECHNOLOGY COMPARISON
    • REFERENCES
    • ROADMAP
    • START CUSTOMIZING
  • BRAKE SENSOR
    • BRAKE FORCE SENSOR TECHNOLOGY
      • CALIPER SENSOR
  • POWER METER
    • ELECTRONIC MODULES
      • SPINDLE MODULE SG53
    • TEST & CAL
    • SOFTWARE
    • DIY Power Meter
  • E-BIKE INSIGHTS
    • RIDE FEELING
    • EU RULES
    • MICROMOBILITY
    • E-BIKE SAFETY
    • CATAPULT EFFECT
    • E-BIKE EXERCISE
    • RESPONSIVENESS
  • ABOUT
    • NEWS
    • JOBS

Form Factor – Customer Examples

Rotor-stator form factor


Customer form factor examples catalog


All torque/cadence sensors are customized to fit a unique mechanical design. These rotor-stator form factor examples are solutions our customers have come up with. Each of these solutions fits into one of three major categories:

  • Radially constrained designs where the difference between outer diameter (OD) and inner diameter (ID) is restricted. Typically where the sensor fits on a shaft next to a bearing and cannot take up more radial space than the bearing.
  • Axially constrained designs where the total width of the sensor solution is limited. Typically where the sensor is working on a disk/spider surface and needs to fit between the torque-sensing disc-shaped metal and some other wall.
  • In-between where the 3D space available is constrained in both directions. This can be inside a gearbox or some other complex-shaped system.

When designing for this technology, it may help to start out with an existing example below and modify the mechanical shape from there. If you need OD < ID + 15mm, please get in touch to discuss the details.


Example 3D CAD files


These are just some examples of rotor-stator form factor. Let us know what you are looking for and we may have other examples you can use.

Silhouette
Name
ID R/S
OD|Box R/S
3D CAD
SG2Q-0831
15.2/17 mm
30/32 mm
SG2Q-0831.zip
rotor-stator-form-factor
SG2Q-0846
23.2/27 mm
41/41 mm
SG2Q-0846.zip
SG2Q-0843
24.2/24.2 mm
38.2/42.8 mm
SG2Q-0843.zip
rotor-stator-form-factor
SG2Q-0838
27/33 mm
46/46×68 mm
SG2Q-0838.zip
rotor-stator-form-factor
SG2Q-0836
29/30 mm
46/46×68 mm
SG2Q-0836.zip
rotor-stator-form-factor
SG2Q-0840
36.1/36.1 mm
50/50 mm
SG2Q-0840.zip
rotor-stator-form-factor
SG2Q-0837
38.2/39 mm
53/53×64 mm
SG2Q-0837.zip
SG2Q-0841
41/45 mm
60/70.5×73 mm
SG2Q-0841.zip
rotor-stator-form-factor
SG2Q-0839
51/68 mm
84/104 mm
SG2Q-0839.zip
SG2Q-0842
55/62 mm
80/91.5 mm
SG2Q-0842.zip
rotor-stator-form-factor
SG2Q-0845
72.5/74 mm
97.5/96 mm
SG2Q-0845.zip

Notes:
“R” = Rotor part of the sensor. The rotor is the moving/rotating part.
“S” = Stator part of the sensor. The stator is the stationary part.
“ID” = Inner diameter. The biggest shaft that can fit a given sensor set is set by the smallest ID.
“OD|Box” = Outer diameter (for some shapes indicating the bounding box makes more sense)
The air gap between rotor and stator is typically 1-2 mm and can be tuned to larger gaps as needed.
All 3D CAD files are in STEP format. The files are showing how the final sensor parts may look including the over-molding for environmental protection (grease, oil, water, etc.)

Please get in touch (below) if you need other file formats, thinner, larger, smaller, different mounting, etc. The technology is quite flexible and quick/easy to customize for a perfect fit.


FAQ


What is a mid-drive motor?
A mid-drive motor is installed between your pedals usually in the crank area. The position ensures optimal weight distribution and a low and central center of gravity. However, a number of alternatives exist. One key disadvantage of a mid-drive compared to a rear-hub drive is that all the force (human + motor) needs to through the chain/belt causing more wear.

What is a hub-drive motor?
For a hub-drive, the motor is positioned on the front or rear wheel inside the wheel hub. The motor provides driving force by spinning the wheel on which it is mounted. If placed on the front wheel, it will feel a bit like the vehicle is being pulled, and if it is on the rear wheel it will feel very similar to normal pedaling. A well-designed rear hub-drive solution can easily compete with a mid-drive solution.

GET IN TOUCH

ADDRESS

MapSENSITIVUS GAUGE
FRUEBJERGVEJ 3
2100 COPENHAGEN
DENMARK
INFO@SENSITIVUS.COM

SENSITIVUS.COM
TEAMZWATT.COM
IMPRESSUM

JOBS

© 2015–2023. BY USING THIS SITE WITH COOKIES ENABLED IN YOUR BROWSER YOU CONSENT TO THE COOKIE POLICY and PRIVACY POLICY