Boxin · Hengzhen · Botrust
Precision Manufacturing・Powering the World
UDL continuously variable transmission
The UDL series is a mechanical continuously variable transmission that employs friction‑based drive principles, enabling stepless speed regulation from 0 to 1:1.47. It is compatible with motors ranging from 0.37 to 4 kW and supports multiple mounting configurations, making it widely used in automated equipment across industries such as light manufacturing, chemical processing, and food production to achieve flexible speed control.
- Product Description
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I. Product Overview
The UDL series continuously variable transmission is a mechanical CVT that operates on the principle of friction drive. Integrating advanced technologies from both domestic and international sources, it can be paired with various electric motors and gear reducers to deliver seamless speed regulation across a ratio range of 0 to 1:1.71. Widely employed in industries such as light manufacturing, food processing, chemical engineering, pharmaceuticals, papermaking, and textiles, it serves as an ideal power‑transmission component for achieving flexible speed control in automated equipment.
II. Core Structure and Operating Principle
- Structural Composition
- It consists of core components such as the output shaft, planetary gears, slider, speed‑adjusting wheel, steel ring, friction wheel, pressure plate, and motor shaft. By adjusting the position of contact between the friction wheel and the steel ring via a handwheel, the transmission radius is varied, enabling continuous adjustment of the rotational speed.
- Working principle
- Power is transmitted via the frictional force between a friction wheel and a steel ring. By varying the transmission contact radius, the output speed can be continuously adjusted within a specified range, with speed changes possible without stopping the machine, thereby accommodating process‑related variations during production.
III. Model Designation and Specification Parameters
1. Model Designation Explanation (Example: UDL-0.75-B5-B6)
Serial number Code Explanation 1 UDL Continuously Variable Transmission Code 2 L Model type (the L series is vertical; horizontal models are also available) 3 0.75 Motor matching power (0.37 kW / 0.75 kW / 1.5 kW / 2.2 kW / 3 kW / 4 kW, etc.) 4 B5/B6 Motor mounting method (B5: flange mounting; B6/B3: foot mounting) 5 B5 Installation orientation code, corresponding to the installation method diagram. 2. Performance Parameters (taking N1 = 1400 r/min as an example)
Model number Compatible Power Speed regulation range Output speed range (r/min) Output torque (N·m) UDL-0.37 0.37kW 1:1.47 1000~200 1.5~3.6 UDL-0.75 0.75kW 1:1.47 1000~200 3.6~7.2 UDL-1.5 1.5kW 1:1.47 1000~200 7.2~12.24 UDL-2.2 2.2kW 1:1.47 1000~200 12.24~24.48 UDL-3.0 3.0kW 1:1.47 1000~200 24.48~36.72 UDL-4.0 4.0kW 1:1.47 1000~200 36.72~40.96
IV. Product Features
- Stepless speed control function
- The output speed can be continuously adjusted within the specified range, with a speed ratio of up to 1:1.47 (some models support 1:1.71), and can be fine-tuned without stopping the machine, thereby meeting the process requirements of various operating conditions.
- Operates smoothly and reliably
- Friction drive mechanisms feature low operating noise and minimal vibration, with stable output torque, making them well suited for automated equipment that demands high precision in speed control.
- Modular Adaptation Design
- It can be directly paired with various standard motors and gearboxes, featuring universal mounting interfaces and supporting multiple installation configurations such as B3, B5, B6, and B8, thereby accommodating diverse equipment layouts.
- Easy maintenance
- It features a simple structure, with core components made from wear-resistant materials for a long service life. Routine maintenance requires only periodic grease replenishment, resulting in low maintenance costs.
V. Installation Method and Application Scenarios
- Installation method
- Supports multiple mounting configurations, including B3 (bottom‑foot horizontal), B5 (flange‑mounted vertical), B6D, and V5/V1 (for installation in different orientations); the handwheel position can be adjusted to suit the equipment layout.
- Typical application scenarios
- Light industrial equipment: conveying and process speed control for food machinery, packaging machinery, and textile machinery.
- Chemical and Pharmaceutical Industries: Speed Regulation of Mixing Equipment, Reactors, and Filtration Systems
- General Equipment: Flexible Power Systems for Automated Production Lines, Conveyor Systems, and Small Machine Tools
VI. Key Points for Use and Maintenance
- During installation, ensure that the motor and gearbox are coaxial to prevent eccentric vibration.
- Regularly check the lubricant level and replenish the grease at prescribed intervals to prevent wear of friction components.
- The operating ambient temperature must be maintained between -10°C and 40°C to prevent high temperatures or humid conditions from compromising transmission efficiency.
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