ZRPS / ZRPN Right Angle Gearbox
The ZRPS / ZRPN Right Angle Gearbox Series represents a high-performance spiral bevel gearbox line, designed for precise torque transmission, compact installation, and long-term reliability in industrial and automation systems. Engineered for smooth power delivery and high efficiency, both models deliver quiet, low-backlash performance with exceptional torque density.
The two models share the same internal spiral bevel gear structure but differ in output flange design to suit diverse installation requirements:
ZRPS – Features a square output flange, ideal for precision servo and motion control systems.
ZRPN – Features a round output flange, preferred for general-purpose and industrial drive applications.
Each unit is built with precision-ground alloy steel gears, hardened bearing supports, and high-strength aluminum or cast-iron housings, ensuring optimal rigidity, load capacity, and service life.
Key Features
Spiral Bevel Gear Transmission – Provides smooth, efficient torque transfer with low noise and high mechanical efficiency.
Right-Angle Output Configuration – Enables space-saving installation and flexible system design.
Square (ZRPS) or Round (ZRPN) Output Flange – Tailored mounting interfaces for different mechanical layouts.
Low Backlash Design – Precision machining ensures accurate positioning for servo and automation applications.
High Torque Density – Compact housing delivers maximum torque in minimal space.
High Efficiency – Spiral bevel gear geometry achieves up to 96% transmission efficiency per stage.
Durable Housing Options – Aluminum alloy or cast-iron structure offers rigidity, heat dissipation, and vibration damping.
Maintenance-Free Operation – Factory-sealed lubrication (grease or oil) extends service intervals and simplifies maintenance.
Universal Mounting Orientation – Suitable for horizontal, vertical, or inverted installation.
Customizable Shaft Options – Available with solid, hollow, or double-shaft outputs.
Series Differentiation
ZRPS – Square Flange Output
Square mounting interface for servo motor and automation compatibility.
The lightweight aluminum alloy housing provides rigidity and superior heat dissipation.
Low backlash design (≤ 12 arcmin standard, ≤ 8 arcmin optional).
Ideal for robotics, packaging, and motion control systems requiring accuracy and repeatability.
ZRPN – Round Flange Output
The round output flange is designed for easy alignment in general mechanical installations.
Robust cast-iron housing optimized for strength and vibration resistance.
Suitable for heavy-duty continuous operation.
Designed for conveyors, process machinery, and industrial automation drives.
Applications
The ZRPS / ZRPN Right Angle Gearbox Series is widely used across automation, machinery, and industrial power transmission systems, including:
Robotics and motion control – precision positioning and torque transfer in compact systems
Machine tools and CNC equipment – accurate and efficient power distribution
Packaging and printing machines – smooth, low-vibration continuous operation
Material handling and conveyor systems – heavy-load drive performance with high durability
Automation cells and servo axes – space-saving rotary motion with low backlash
Process and production lines – reliable torque output under continuous duty cycles
Performance Advantages
High Efficiency and Smooth Power Transfer – Spiral bevel gearing reduces noise and energy loss.
Precision Motion Capability – Low backlash design ensures positioning accuracy.
Compact, Space-Saving Design – The right-angle layout minimizes the installation footprint.
Strength and Durability – Heat-treated alloy steel gears resist wear and shock loads.
Reduced Maintenance – The pre-lubricated, sealed design ensures an extended service life.
Flexible Installation – Choice of square or round flange simplifies system integration.
Technical Benefits
Gear Type: Spiral bevel right-angle drive
Gear Ratios: Standard 1:1, 2:1, 3:1, 5:1 (custom ratios available)
Efficiency: Up to 96% per gear stage
Backlash: Single stage ≤ 8 arcmin / Two stages ≤ 12 arcmin
Torque Capacity: High torque density design for compact applications
Output Flange: Square (ZRPS) or round (ZRPN) interface
Lubrication: Factory-sealed, maintenance-free grease or oil bath
Mounting Orientation: Universal installation positions supported
- Operating Temperature: –10°C to +90°C
Why Choose ZRPS / ZRPN Right Angle Gearbox
The ZRPS / ZRPN Right Angle Gearbox Series combines precision, power, and design flexibility in a compact, efficient transmission system. Whether you require the square-flange ZRPS for servo-driven automation or the round-flange ZRPN for general industrial machinery, both deliver the same proven reliability, high torque density, and quiet operation that define engineering excellence. Developed under our guiding principles of Power, Precision, and Productivity, the ZRPS/ZRPN series offers an ideal right-angle solution for automation systems, robotics, packaging equipment, and industrial drive mechanisms that demand long life, compact design, and maintenance-free performance.
