• Ti5 ROBOT CRA-RI40-52-PRO motor joint module, top output flange view with center bore
  • Motor joint module top view showing yellow power connectors and small signal ports on housing
  • CRA-RI40-52-PRO joint motor module side profile with cylindrical housing and top connectors
  • Side view with model marking on housing and two yellow connectors visible at bottom edge
  • Angled view of motor joint module showing output flange, black band, and mounting screw holes
  • Close-up angled top of output flange with center hole and bolt circle on joint motor module
  • Top connector close-up with QC PASS sticker, yellow power plugs, and white signal connectors
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Ti5 ROBOT CRA-RI40-52-PRO Motor Joint Module Motor 24-48V 90W 51/101 Ratio 16Bit Encoder

Ti5 ROBOT CRA-RI40-52-PRO Motor Joint Module Motor 24-48V 90W 51/101 Ratio 16Bit Encoder

Ti5 ROBOT

$1,216.00 USD
$1,216.00 USD
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Version
Encoder
Brake
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Overview

Ti5 ROBOT CRA-RI40-52-PRO Motor is a lightweight joint module motor for robotics joints. Highlight text includes: “LIGHTWEIGHT JOINT MODULE”, “Core hardware breakthrough key”, “Lightweight”, and “Small size, powerful performance”.

Key Features

Lightweight / small size

  • Ultra-lightweight design with stronger usability.
  • Reduction in weight by more than 1/3.
  • Greatly reduces operating energy consumption.

Performance

  • Industrial-grade performance standards.
  • Torque density is twice that of similar products.
  • Automotive-grade, anti-static, anti-vibration.

Modularization

  • Six modules are integrated organically.
  • Three series comprehensively adapt to customers in different scenarios.
  • Greatly reduces production difficulty; improves production efficiency.

Structure (exploded view labels)

  1. Motor back cover
  2. Control board
  3. Encoder
  4. Stator housing
  5. Motor rotor
  6. Motor stator
  7. Harmonic reducers
  8. Flexspline Cover

Mass production / platform statements

  • Industry-leading mass production advantage.
  • All of the underlying hardware can be controlled, and the localization rate can reach 100%.
  • Complete software toolchain for robot development, helping to accelerate research and development.
  • Ti5 Robot Rapid Development Platform combines hardware and software, with an open source SDK mentioned for future availability.

Torque density comparison (Nm/kg)

  • 250+: Ti5 Robot Next Generation
  • 254: An American brand
  • 192: Ti5 Robot mass production model
  • 80.4: A Chinese brand
  • 53.5: A Canadian brand
  • 33.8: A Korean brand

Caption text: “Comparison of torque density of mainstream joint products (Nm/kg)”.

For selection guidance, documentation questions, or integration support, contact https://rcdrone.top/ or email support@rcdrone.top.

Applications

  • Humanoid Robots
  • Robotic Arms
  • Exoskeletons
  • Quadruped Robots
  • AGV Vehicles
  • ARU Robots

Specifications

Parameter Value
Motor Model CRA-RI40-52-PRO-XX / CRA-RI40-52-PRO-XX-B
Reduction Ratio 51 / 101
Start-stop Peak Torque 8.3 / 11 N.m
Maximum Allowable Average Load Torque 5.5 / 8.9 N.m
2000 Rpm/(Reduction Ratio) Rated Torque at this speed 3.5 / 5 N·m
Output End Peak Rotational Speed 118 / 59 RPM
Rated Speed 80 / 40 RPM
Motor Power 90 W
Supply Voltage 24-48 V
Maximum Continuous Current 3 A
Rated Current 2 A
Encoder Resolution 16 Bit
Back Clearance 40 / 30 arcsec
Torque Constant 0.05 N·m/A
Hole 12 mm
Length: Without brake / With brake 62 ±0.5 mm / 82 ±0.5 mm
Weight: Without brake / With brake 0.32 kg / 0.42 kg
Inertia: Without brake / With brake 73 g·cm² / 116.2 g·cm²

Manuals

Details

Lightweight joint module lineup for Ti5 ROBOT CRA-RI40-52-PRO motor joint module series

Designed for compact robotics joints where low weight and high torque density matter most.

Exploded view of CRA-RI40-52-PRO joint module motor showing modular parts and compact assembly

A modular internal layout combines motor, reducer, control board, and encoder in one integrated joint module.

Cutaway rendering highlighting internal drive components and mass-production platform message

Built on a scalable production platform with a development toolchain intended to speed up robot integration.

Labeled exploded structure of joint module: back cover, control board, encoder, stator, rotor, harmonic reducer

Component-level breakdown helps confirm what’s included inside the joint module for design and maintenance planning.

High torque density comparison chart for mainstream robot joint modules with internal motor module rendering

Torque density (Nm/kg) comparison provides quick context against other mainstream joint products.

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