Technical Specification

Product Overview

Core Advantages

Engineered to deliver superior performance and reliability in demanding riding conditions.

High Precision & Linearity

Delivers highly accurate torque measurements with a strictly linear output, ensuring precise motor control.

Fast Dynamic Response

Instantaneous signal processing captures pedaling changes in real-time for a natural riding feel.

Excellent Interchangeability & Maintenance-Free

Standardized components allow for easy swapping without recalibration, reducing long-term service costs.

Compact Size & Wide Compatibility

Fits seamlessly into standard JIS bottom bracket shells without requiring custom frame modifications.

Non-Contact Sensing & Long Lifespan

Magnetic/inductive sensing eliminates physical wear between moving parts, drastically extending operational life.

Low Power & Long-Term Stability

Consumes less than 0.2W, preserving e-bike battery life while maintaining consistent performance over years.

Customizable Design

Available in multiple shell widths and pulse configurations to meet specific OEM requirements.

Dimension Specifications

All dimensions are in millimeters (mm). Measurements represent different assembly configurations based on shell width.

Torque Sensor Technical Drawing showing L, A, C, D dimensions with M18×P1.0 specifications
Reference diagram detailing L (Total Length), A/C (Axle Extents), D (Sensor Core Width), and M18×P1.0 thread specifications.
BBTS1 (Standard Narrow Shell)
68mm, 73mm, and 84mm configurations
BB WidthL (mm)A (mm)C (mm)D (mm)
68mm145/15538.5/43.538.5/43.536.5/34
73mm145/15533.5/4138.5/4136.5/36.5
84mm158.5/16635.5/4339/3950/50
BBTS3 (Wide Shell Fat Bike)
100mm and 120mm configurations
BB WidthL (mm)A (mm)C (mm)D (mm)
100mm172/17731/3641/4136.5/36.5
120mm197364136.5

Electrical & Mechanical Specifications

Comprehensive technical data for system integration and controller calibration.

Electrical Parameters
Input Voltage4.5~5.5V DC
Input Power<0.2W
Torque Output Voltage Range0.74~3.3V
Torque Signal Slope35mV/N·m
Torque Measurement Range0.5~80N·m
Speed Signal Pulse32r/36r optional
Speed Signal Duty Cycle40%~60%
Design StandardEN14764
Mechanical Specifications
Cup ThreadBC 1.37*24 JIS Standard
Compatible Crank Types1-piece / 2-piece / 3-piece
BB Shell Width (BBTS1)68 / 73 / 84mm
BB Shell Width (BBTS3)100 / 120mm
Waterproof RatingIP65
Operating Temperature-20℃ ~ +60℃
Storage Temperature-30℃ ~ +80℃

Interested in the Torque Sensor?

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Signal Output Characteristics

Visual representation of sensor data output for controller integration.

Torque Output Characteristics

Torque and output voltage have a strict positive linear relationship. The measurement range of 0~80N·m maps directly to an output voltage of 0.74~3.3V. The greater the pedaling torque, the higher the output voltage, enabling the controller to accurately calculate pedaling force.

Voltage (V)Torque (N·m)0.743.3080

Speed Pulse Output Characteristics

The sensor outputs a fixed pulse count per rotation (32 or 36 pulses) with a highly stable 40%~60% duty cycle across a full 0~360° crank rotation. The controller calculates cadence and riding speed based on this pulse frequency.

Duty Cycle: 50%
AmplitudeRotation (0~360°)