K series helical bevel gear reducer（KHZ..R,KH..R,KHF..R,KH..BR,KAZ..R,KA..R）

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Weigao's K - series helical bevel gear reducers, encompassing models like KHZ..R, KH..R, KHF..R, KH..BR, KAZ..R, and KA..R, are top - tier power transmission devices.

These reducers combine the advantages of helical and bevel gears. The helical gears ensure smooth and efficient power transfer at the initial stage, while the bevel gears enable a change in the direction of power transmission, making them highly versatile for various industrial setups.

Their compact design saves valuable installation space, facilitating easy integration into different machinery systems. In terms of performance, they offer high torque output and stable operation. The precision - engineered gears reduce noise and vibration significantly during work, enhancing the overall working environment.

With robust construction and high - quality materials, these reducers are durable and can withstand harsh working conditions. They also come with a wide range of reduction ratios, allowing for precise speed control to meet diverse application needs. Whether in heavy - duty industries or precision - driven sectors, Weigao's K - series reducers are a reliable choice.

In terms of performance, they boast strong load - bearing capacity, capable of handling high - load operating conditions. During operation, they generate low noise and little vibration, creating a quiet working environment. Moreover, the gears are precisely machined, offering excellent wear resistance and a long service life.

Additionally, with a wide range of model specifications, this series can meet the diverse needs of different industries and scenarios, widely applied in automation equipment, machinery manufacturing, logistics transportation, and more, winning the trust of numerous customers with its reliable quality.

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K series

Description

K-Series Helical Bevel Gear Reducer: Right-Angle Precision Transmission, Empowering Industrial Complex Operation

I. Product Overview: Integrated Right-Angle Design, Meeting Complex Transmission Needs

Weigao’s K-Series Helical Bevel Gear Reducer, covering key models including KHZ..R, KH..R, KHF..R, KH..BR, KAZ..R, and KA..R, is a high-performance power transmission device specialized in right-angle drive scenarios. Based on an integrated modular design platform, this series integrates advanced helical bevel gear meshing technology and optimized right-angle transmission structure, realizing a perfect balance of compact layout, high transmission efficiency and strong load-bearing capacity. It effectively solves the pain points of traditional right-angle reducers such as large transmission backlash, unstable operation and limited installation flexibility, and can maintain precise and reliable power output in complex working conditions involving variable load, frequent start-stop and limited installation space. With its model-specific design advantages and broad adaptability, it has become a core transmission component in industries such as material handling, lifting equipment, automation production lines and construction machinery, providing strong power support for the intelligent and efficient upgrading of industrial production. As a key export product of Weigao, this series has been exported to more than 80 countries and regions around the world, winning wide trust from global customers with its excellent right-angle transmission performance.

II. Core Advantages: Six Core Strengths, Leading Right-Angle Transmission Standards

1. High-Precision Right-Angle Transmission, Stable Operation

Adopting precision-ground helical bevel gears with optimized tooth profile and spiral angle design, the series achieves meshing accuracy up to GB/T 10095.2 Class 5 standard. The 90-degree right-angle transmission structure with integrated box body ensures precise alignment of gear axes, reducing transmission backlash to ≤3arcmin (precision models can be customized to ≤1.5arcmin). The transmission efficiency reaches 94%-97% for single-stage transmission and 92%-95% for multi-stage transmission, effectively reducing energy loss. The smooth meshing of helical bevel gears minimizes operating noise, with the noise level ≤72dB at 1m distance, creating a stable and quiet working environment even in compact installation spaces.

2. Model-Specific Optimization, Strong Adaptability

Each model in the series is tailored for specific working conditions: KHZ..R and KAZ..R models are designed for high-speed precision right-angle transmission, ideal for automated production lines; KH..R models excel in heavy-duty continuous operation, suitable for large-scale lifting equipment; KHF..R models feature enhanced heat dissipation structure, adapting to high-temperature working environments; KH..BR models adopt reinforced bearing design, suitable for high-impact load scenarios such as mining machinery; KA..R models adopt compact flange-mounted design, ideal for equipment with limited installation space. This targeted design ensures that each model can exert optimal performance in its respective application scenario.

3. Robust Load-Bearing Capacity, Long Service Life

Helical bevel gears and transmission shafts are made of high-strength 20CrNiMo alloy steel, processed through integral carburizing, quenching, tempering and precision grinding processes. The surface hardness reaches HRC 60-64, and the core hardness is HRC 32-38, ensuring excellent wear resistance, fatigue resistance and impact toughness. The optimized gear tooth contact design increases the effective meshing area by 40% compared to standard models, with rated output torque ranging from 100N·m to 12000N·m. The one-piece cast iron housing with enhanced rib reinforcement design has strong structural rigidity and shock absorption capacity, which can effectively disperse transmission stress and prevent housing deformation, ensuring a service life of more than 12 years under normal maintenance and heavy-duty operation conditions.

4. Flexible Installation, Diverse Configuration

The series supports multiple installation modes to meet diverse layout needs, including base-mounted, flange-mounted (B5/B14), small flange-mounted and torque arm-mounted. The output shaft can be configured with multiple options such as solid shaft with flat key, spline solid shaft, hollow shaft with locking disk and hollow shaft with involute spline. It can be flexibly matched with motors with power ranging from 0.37kW to 110kW and reduction ratios of 5-400 (single-stage/multi-stage combination), realizing personalized configuration according to the power and speed requirements of different equipment. The integrated right-angle design eliminates the need for additional angle transmission components, saving installation space.

5. Advanced Sealing System, Wide Environmental Adaptability

Equipped with a multi-layer composite sealing system composed of high-temperature resistant double-lip oil seal, labyrinth seal and O-ring, the reducer achieves IP55 protection level (IP65 can be customized according to needs). This sealing structure can effectively prevent the intrusion of dust, water vapor, corrosive gas and other impurities, and avoid oil leakage, ensuring stable operation in harsh environments such as high temperature, high humidity, dusty construction sites and outdoor operations. The rational internal oil circuit design and optional forced lubrication system ensure sufficient lubrication of all transmission components, enabling the product to work normally in the operating temperature range of -25℃ to +90℃.

6. Convenient Maintenance, Cost-Saving Operation

The modular design of the product makes the disassembly, assembly and maintenance of components more convenient, and the high interchangeability of spare parts reduces maintenance difficulty and time cost. The centralized oil filling port, oil drainage port and transparent oil level observation window facilitate daily lubrication management and oil level inspection. It is recommended to use 220#/320# heavy-duty industrial gear oil; the first oil change is after 600 hours of operation, and regular maintenance and oil change are performed every 6000 hours thereafter. The high reliability and long service life of the product effectively reduce the frequency of maintenance and replacement, lowering the total operation cost of customers.

III. Application Fields: Targeted Coverage, Boosting Industrial Complex Operation

With its excellent right-angle transmission performance and targeted model advantages, Weigao’s K-Series Helical Bevel Gear Reducer has been widely applied in various industrial fields requiring right-angle drive:

Material Handling: Belt conveyors, chain conveyors, stackers, providing stable right-angle power transmission for material transportation;
Lifting Equipment: Electric hoists, small cranes, lifting platforms, adapting to high-torque and high-precision lifting requirements;
Automation Production Lines: Robotic arms, automated assembly lines, precision feeding equipment, matching compact installation and high-precision transmission needs;
Construction Machinery: Small excavators, loaders, concrete mixers, ensuring reliable operation in outdoor harsh working environments;
Packaging & Printing: Cartoning machines, labeling machines, printing presses, adapting to complex layout and stable operation requirements;

IV. Technical Parameters: Precise Matching, Meeting Diverse Needs

Item	Specification Range
Motor Power Adaptation	0.37kW - 110kW
Reduction Ratio	5 - 400 (Single-stage/Multi-stage Combination)
Rated Output Torque	100N·m - 12000N·m
Transmission Efficiency	92% - 97% (Single-stage/Multi-stage)
Operating Noise	≤72dB (Measured at 1m Distance)
Protection Level	IP55 (IP65 Customizable)
Operating Temperature	-25℃ - +90℃
Installation Method	Base-mounted, Flange-mounted (B5/B14), Small Flange-mounted, Torque Arm-mounted
Output Shaft Type	Solid Shaft (Flat Key/Spline), Hollow Shaft (Locking Disk/Involute Spline)

V. Installation and Maintenance: Scientific Operation, Maximizing Performance

During installation, ensure that the coaxiality error between the reducer and the motor is ≤0.1mm and the perpendicularity error of the right-angle axis is ≤0.08mm to avoid abnormal wear of gears and bearings caused by misalignment. Select the appropriate lubricating oil according to the working conditions: use 220# industrial gear oil for normal temperature and medium load, and 320# heavy-duty industrial gear oil for high temperature and heavy load. Regularly check the oil level and oil quality; replace the lubricating oil after the first 600 hours of operation, and perform comprehensive maintenance every 6000 hours thereafter, including checking gear meshing status, sealing performance, bearing temperature and tightening fasteners. If abnormal phenomena such as excessive noise, obvious vibration, oil leakage or overheating occur during operation, stop the machine immediately for inspection and troubleshooting to avoid further damage to the equipment.

VI. Conclusion: Innovation-Driven, Creating Right-Angle Transmission Value

Adhering to the design philosophy of "Precision, Stability, Compactness and Efficiency", Weigao’s K-Series Helical Bevel Gear Reducer (KHZ..R, KH..R, KHF..R, KH..BR, KAZ..R, KA..R) continuously upgrades core technologies and optimizes production processes to meet the increasingly diverse right-angle transmission needs of the industrial field. Whether in high-torque continuous operation, high-precision control or complex layout installation scenarios, this series can provide reliable power support for customers with its excellent performance and targeted model advantages, helping to improve production efficiency and reduce operation risks. We will continue to focus on the research and development of right-angle transmission technology, deeply explore the needs of different industries, provide customized product solutions and global after-sales service support, and work with customers around the world to build a more efficient and intelligent industrial production system. All export products of this series have passed international certifications such as ROHS, CE and ISO9001, fully complying with the technical standards and safety requirements of various countries and regions, ensuring smooth access to global markets.

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